SMDC300F/24-2

PPTC RESETTABLE FUSE, 3A, 24VDC, 2920

⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
Manufacturer: LITTELFUSE
Product type: Surface Mount PPTCs
PPTC Case Style:2920 (7351 Metric); Product Range:PolySwitch SMDC Series; Voltage Rating:24VDC; Holding Current:3A; Trip Current:6A; Time to Trip:5s; Current Rat 34AC5422
Time to Trip: 5s
Trip Current: 6A
Product Range: PolySwitch SMDC Series
Voltage Rating: 24VDC
Holding Current: 3A
PPTC Case Style: 2920 (7351 Metric)
Current Rating Max: 40A
Operating Temperature Max: 85°C
Operating Temperature Min: -40°C
Automotive Qualification Standard: -
Delivery and price
Units per pack	1000
Price	0.322 €
Current stock	1000+
Lead time	30 days
Datasheet
PTC **Datasheet** 

## **Terminal SMD and SMDC Series** Surface Mount 

## RoHS HFL_l@ WGA 

## **Description** 

The SMD series provides surface mount overcurrent protection for applications where space is at a premium and resettable protection is desired. 

## **Features & Benefits** 

- Broadest range of resettable ■ Fast time-to-trip devices available in industry 

   - RoHS complaint, lead-free and halogen-free 

- Low resistance 

- Small footprint - 2018, 2920 and 3425 

## **Applications** 

Mobile Electronics and Batteries 

## **Additional Information** 

- Computer 

- Portable electronics 

- Multimedia 

   - Telephone and broadband 

   - Automotive 

   - Industrial controls 

- Game machines ■ Battery 

## **Agency Approvals** 

**==> picture [198 x 8] intentionally omitted <==**

**----- Start of picture text -----**<br>
Resources Accessories Samples<br>**----- End of picture text -----**<br>


|**Agency**<br>A|**Agency File Number**<br>E74889|
|---|---|
|@,|78165|
|A|50253253<br>72161793<br>72161779<br>72161795|



## **Electrical Characteristics** 

|**Part**<br>**Number**|**Ordering**<br>**Part Number**|**IH**<br>**(A)**|**IT**<br>**VMAX**<br>**(A)**<br>**(VDC)**|**IMAX**<br>**(A)**|**PD MAX**<br>**(W)**|**Max Time-to-trip**<br>**(A)**<br>**(s)**|**Max Time-to-trip**<br>**(A)**<br>**(s)**|**RMIN**<br>**(Ω)**|**R1MAX**<br>**(Ω)**|
|---|---|---|---|---|---|---|---|---|---|
||||**2018 Size**|||||||
|SMD030F-2018|RF0323-000|0.30|0.80<br>60|20|1.50|1.50|1.50|0.500|2.30|
|decaSMDC050F/60|RF1342-000|0.55|1.10<br>60|10|1.00|8.00|0.10|0.200|1.10|
|SMD100F-2018|RF0324-000|1.10|2.20<br>15|40|1.40|8.00|0.50|0.100|0.40|
|SMD150F-2018|RF0325-000|1.50|3.00<br>15|40|1.80|8.00|1.00|0.070|0.18|
|SMD200F-2018|RF0326-000|2.00|4.20<br>6|40|1.50|8.00|3.00|0.048|0.10|
||||**2920 Size**|||||||
|SMD030F|RF0314-000|0.30|0.60<br>60|10|1.70|1.50|3.00|1.200|4.800|
|SMDC030F|RF4438-000|0.30|0.60<br>60|10|1.50|1.50|3.00|0.300|3.400|
|SMD050F|RF0315-000|0.50|1.00<br>60|10|1.70|2.50|4.00|0.350|1.400|
|SMDC050F|RF4439-000|0.50|1.00<br>60|10|1.50|2.50|4.00|0.150|1.200|
|SMD075F|RF0316-000|0.75|1.50<br>30|40|1.70|8.00|0.30|0.350|1.000|
|SMDC075F|RF4441-000|0.75|1.50<br>33|40|1.50|8.00|0.30|0.100|0.610|
|SMD075F/60|RF4439-000|0.75|1.50<br>60|10|1.70|8.00|0.30|0.350|1.000|



## **Notes:** 

- IH : Hold current: maximum current device will pass without interruption in 20°C still air. 

- IT : Trip current: minimum current that will switch the device from low resistance to high resistance in 20°C still air. 

- VMAX : Maximum continuous voltage device can withstand without damage at rated current. 

- IMAX : Maximum fault current device can withstand without damage at rated voltage. 

   - : Power dissipated from device when in the tripped state in 20°C still air. 

PD 

- : Minimum resistance of device as supplied at 20°C unless otherwise specified. 

RMIN 

- R1MAX : Maximum resistance measured one hour post-trip or post-reflow at 20°C. 

© 2021 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 06/07/21 

**1** 

PTC **Datasheet** 

**Terminal SMD and SMDC Series** Surface Mount 

## **Electrical Characteristics** (Cont’d) 

|**Part**<br>**Number**|**Ordering**<br>**Part Number**|**IH**<br>**(A)**|**IT**<br>**VMAX**<br>**(A)**<br>**(VDC)**|**IMAX**<br>**(A)**|**PD MAX**<br>**(W)**|**Max Time-to-trip**<br>**(A)**<br>**(s)**|**Max Time-to-trip**<br>**(A)**<br>**(s)**|**RMIN**<br>**(Ω)**|**R1MAX**<br>**(Ω)**|
|---|---|---|---|---|---|---|---|---|---|
||||**2920 Size**|||||||
|SMD100F|RF0318-000|1.10|2.20<br>30|40|1.70|8.00|0.50|0.120|0.480|
|SMD100F/33|RF0319-000|1.10|2.20<br>33|40|1.70|8.00|0.50|0.120|0.410|
|SMDH120|RF1478-000|1.20|2.30<br>16|50|2.00|8.00|2.00|0.150|0.340|
|SMD125F|RF0320-000|1.25|2.50<br>15|40|1.70|8.00|2.00|0.070|0.250|
|SMDC125F/33|RF4298-000|1.25|2.50<br>33|40|1.50|8.00|2.00|0.040|0.250|
|SMD150F/33-2920|RF2285-000|1.50|3.00<br>33|40|1.50|8.00|5.00|0.080|0.230|
|SMDC185F/33|RF3182-000|1.85|3.70<br>33|40|1.70|8.00|2.50|0.050|0,150|
|SMD200F/24-2920|RF2286-000|2.00|4.00<br>24|40|1.50|8.00|5.00|0.050|0.125|
|SMD250F/15-2920|RF2287-000|2.50|5.00<br>15|40|1.50|8.00|10.00|0.035|0.085|
|SMD260F|RF0321-000|2.60|5.20<br>6|40|1.70|8.00|20.00|0.025|0.075|
|SMD300F|RF0322-000|3.00|6.00<br>6|40|1.50|8.00|35.00|0.015|0.048|
|SMD300F/15|RF1835-000|3.00|6.00<br>15|40|1.50|8.00|35.00|0.015|0.050|
|SMDC300F/24|RF3102-000|3.00|6.00<br>24|40|1.70|8.00|5.00|0.015|0.072|
|SMDC310F/18|RF3763-000|3.10|6.00<br>18|50|1.50|8.00|25.00|0.013|0.036|
||||**3425 Size**|||||||
|SMD150F|RF0308-000|1.50|3.00<br>15|40|1.90|8.00|5.00|0.060|0.250|
|SMD150F/33|RF0311-000|1.50|3.00<br>33|40|1.90|8.00|5.00|0.080|0.230|
|SMDH160|RF1479-000|1.60|3.20<br>16|70|2.20|8.00|15.00|0.050|0.150|
|SMD185F|RF1238-000|1.85|3.60<br>33|40|1.50|8.00|5.00|0.065|0.165|
|SMD200F|RF0312-000|2.00|4.00<br>15|40|1.90|8.00|12.00|0.050|0.125|
|SMD250F|RF0313-000|2.50|5.00<br>15|40|1.90|8.00|25.00|0.035|0.085|



## **Notes:** 

- IH : Hold current: maximum current device will pass without interruption in 20°C still air. 

IT : Trip current: minimum current that will switch the device from low resistance to high resistance in 20°C still air. 

VMAX : Maximum continuous voltage device can withstand without damage at rated current. 

IMAX : Maximum fault current device can withstand without damage at rated voltage. PD : Power dissipated from device when in the tripped state in 20°C still air. 

- RMIN : Minimum resistance of device as supplied at 20°C unless otherwise specified. R1MAX : Maximum resistance measured one hour post-trip or post-reflow at 20°C. 

## **Temperature Rerating Curve** 

**==> picture [468 x 190] intentionally omitted <==**

**----- Start of picture text -----**<br>
A  = decaSMDC / SMDC and SMD  200<br>B  = SMDH120, SMDH160 180<br>160<br>A<br>140<br>BEEEEEEEE B EEE<br>120<br>100<br>RGR SSRs Rees<br>80<br>60<br>A<br>40<br>B<br>20<br>0<br>-40  -20  0  20  40  60  80  100  120<br>Ambient Temperature (°C)<br>% of Rated Hold and Trip Current<br>**----- End of picture text -----**<br>


© 2021 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 06/07/21 

**2** 

PTC **Datasheet** 

**Terminal SMD and SMDC Series** Surface Mount 

## **Temperature Rerating** 

|||||**Maximum Ambient Temperature**|**Maximum Ambient Temperature**|**Maximum Ambient Temperature**|**Maximum Ambient Temperature**||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|Part Number|-40°C|-20°C|0°C|20°C|25°C|40°C|50°C|60°C|70°C|80°C|85°C|125°C|
||||||**Hold Current (A)**||||||||
||||||**Size 2018**||||||||
|SMD030F-2018|0.48|0.42|0.35|0.30|0.28|0.24|0.21|0.17|0.15|0.12|0.10|—|
|decaSMDC050F/60|1.00|0.85|0.70|0.55|0.53|0.45|0.40|0.35|0.30|0.25|0.23|—|
|SMD100F-2018|1.59|1.43|1.20|1.10|1.03|0.94|0.85|0.72|0.69|0.61|0.57|—|
|SMD150F-2018|2.21|1.97|1.70|1.50|1.43|1.26|1.15|1.00|0.91|0.79|0.73|—|
|SMD200F-2018|2.81|2.54|2.27|2.00|1.93|1.73|1.59|1.46|1.32|1.19|1.12|—|
||||||**Size 2920**||||||||
|SMD030F|0.44|0.39|0.32|0.30|0.28|0.26|0.23|0.19|0.18|0.17|0.15|—|
|SMDC030F|0.49|0.43|0.37|0.31|0.30|0.25|0.22|0.19|0,16|0,14|0,12|—|
|SMD050F|0.73|0.65|0.55|0.50|0.47|0.43|0.39|0.33|0.31|0.28|0.26|—|
|SMDC050F|0.86|0.75|0.65|0.54|0.50|0.43|0.37|0.32|0.26|0.22|0.28|—|
|SMD075F|1.11|0.99|0.84|0.75|0.71|0.63|0.57|0.49|0.45|0.39|0.36|—|
|SMDC075F|1.17|1.04|0.90|0.77|0.75|0.64|0.57|0.50|0.44|0.32|0.34|—|
|SMD075F/60|1.11|0.99|0.84|0.75|0.71|0.63|0.57|0.49|0.45|0.39|0.36|—|
|SMD100F|1.59|1.43|1.20|1.10|1.03|0.94|0.85|0.72|0.69|0.61|0.57|—|
|SMD100F/33|1.48|1.35|1.20|1.10|1.06|0.98|0.91|0.83|0.79|0.73|0.69|—|
|SMDH120|2.34|1.96|1.58|1.20|1.15|1.02|0.92|0.83|0.74|0.65|0.60|0.26|
|SMD125F|1.89|1.68|1.50|1.25|1.21|1.04|0.93|0.85|0.71|0.61|0.55|—|
|SMDC125F/33|2.02|1.78|1.55|1.31|1.25|1.08|0.96|0.84|0.72|0.60|0.54|—|
|SMD150F/33-2920|2.27|2.01|1.76|1.50|1.44|1.25|1.12|0.99|0.86|0.74|0.67|—|
|SMDC185F/33|2.83|2.50|2.20|1.85|1.74|1.53|1.37|1.22|1.04|0.88|0.80|—|
|SMD200F/24-2920|2.90|2.60|2.30|2.00|1.93|1.70|1.55|1.40|1.25|1.10|1.03|—|
|SMD250F/15-2920|3.65|3.25|2.80|2.50|2.33|2.02|1.82|1.60|1.41|1.20|1.11|—|
|SMD260F|3.82|3.41|2.90|2.60|2.45|2.19|1.99|1.70|1.58|1.38|1.28|—|
|SMD300F|4.13|3.75|3.30|3.00|2.87|2.62|2.43|2.25|2.00|1.87|1.78|—|
|SMD300F/15|4.20|3.80|3.30|3.00|2.90|2.62|2.43|2.25|2.00|1.87|1.78|—|
|SMDC300F/24|4.70|4.19|3.70|3.17|3.00|2.66|2.41|2.20|1.90|1.65|1.50|—|
|SMDC310F/18|4.50|4.06|3.78|3.19|3.10|2.75|2.54|2.32|2.10|1.88|1.76|—|
||||||**Size 3425**||||||||
|SMD150F|2.30|2.04|1.80|1.50|1.45|1.23|1.10|0.99|0.83|0.70|0.63|—|
|SMD150F/33|2.30|2.04|1.80|1.50|1.45|1.23|1.10|0.99|0.83|0.70|0.63|—|
|SMDH160|2.14|1.96|1.78|1.60|1.56|1.42|1.33|1.24|1.15|1.06|1.02|0.44|
|SMD185F|2.54|2.29|2.20|1.85|1.80|1.55|1.43|1.31|1.19|1.06|1.00|—|
|SMD200F|3.01|2.67|2.30|2.00|1.90|1.66|1.50|1.30|1.16|0.99|0.91|—|
|SMD250F|3.72|3.31|2.80|2.50|2.35|2.09|1.89|1.60|1.48|1.28|1.18|—|



© 2021 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 06/07/21 

**3** 

PTC **Datasheet** 

**Terminal SMD and SMDC Series** Surface Mount 

## **Typical Time-to-Trip Curves at 20°C** 

**==> picture [472 x 547] intentionally omitted <==**

**----- Start of picture text -----**<br>
100<br>A B D<br> C E<br>midSMD 10<br>A  =  SMD030F-2018<br>B =  decaSMDC050F/60<br>1<br>C  = SMD100F-2018<br>D  = SMD150F-2018  Per Neer<br>E  = SMD200F-2018<br>0.1<br>0.01 B C D E<br>0.1 poe 1 NEASNE A 10 100<br>Fault Current (A)<br>Size 2920<br>A = SMD030F 100 K I M N P<br>B = SMDC030F C G H<br>C = SMD050F 10 A B D<br>D = SMDC050F<br>E = SMD075F, SMD075F/60<br>F = SMDC075F<br>1<br>G = SMD100F, SMD100F/33 WK<br>H = SMDH120<br>I = SMD125F<br>J = SMDC125F/33 0,1 R<br>K = SMD150F/33-2920<br>L = SMDC185F/33 Q<br>M = SMD200F/24-2920 0,01<br>F<br>N = SMD250F/15-2920 eS Ni J<br>O = SMD260F<br>0,001<br>P = SMD300F,SMD300F/15 0,1 SS Se ciiias 1  Secrii 10 a e e siile 100<br>Q = SMDC300F/24 Fault Current (A)<br>R = SMDC310F/18<br>D<br>100<br>A  C E<br>B<br>Size 3425 10<br>A  =  SMD150F, SMD150F/33<br>B  = SMDH160<br>1<br>C  = SMD185F D  = SMD200F   eneA Nea<br>E  = SMD250F<br>0.1<br>B CD E<br>FEE EE A<br>0.011 10 100<br>Fault Current (A)<br>Time-to-Trip (s)<br>Time-to-trip (s)<br>Time-to-Trip (s)<br>**----- End of picture text -----**<br>


**Note:** The average time current curves and Temperature Rerating curve performance is affected by a number or variables, and these curves provided as guidance only. Customer must verify the performance in their application. 

© 2021 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 06/07/21 

**4** 

PTC **Datasheet** 

**Terminal SMD and SMDC Series** Surface Mount 

## **Physical Specifications** 

|**Terminal Pad Material**|100% Matte Tin with Nickel Underplate|
|---|---|
|**Soldering Characteristics**|ANSI/J-STD-002 Category 3 (midSMD)<br>ANSI/J-STD-002 Category 1 (SMD, SMD2)|
|**Solder Heat Withstand**|per IEC-STD 68-2-20, Test Tb, Section 5, Method 1a|
|**Flammability Resistance**|per IEC 695-2-2 Needle Flame Test for 20 seconds|



## **Environmental Specifications** 

|**Test**|**Test Method**|**Conditions**|**Resistance Change**|
|---|---|---|---|
|**Storage Life**|PS300, Section 5.3.2|60°C, 1000 hrs<br>85°C, 1000 hrs|±3% typ<br>±3% typ|
|**Humidity Aging**|PS300, Section 5.3.1|85°C, 85% R.H., 100 hrs|±1.2% typ|
|**Thermal Shock**|MIL-STD-202, Method 107G|85°C, -40°C (20 Times)<br>125°C, -55°C (10 Times)|-33% typ<br>-33% typ|
|**Vibration**|MIL-STD-883C|per MIL-STD-883C|No Change|
|**Solvent Resistance**|PS300, Section 5.2.2|Freon<br>Trichloroethane<br>Hydrocarbons|No Change<br>No Change<br>No Change|



© 2021 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 06/07/21 

**5** 

PTC **Datasheet** 

## **Terminal SMD and SMDC Series** Surface Mount 

## **Dimension Figures** 

C C G B H B F ~~(— ——a (—_' k—~~ F ~~—>~~ D E D E ~~A~~ A ~~oe a~~ 

**Figure 1** 

**Figure 2** 

**Figure 3** 

## **Dimensions** 

||||||**Dimensions in Millimeters (Inches)**|**Dimensions in Millimeters (Inches)**|**Dimensions in Millimeters (Inches)**||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|**Part Number**|**A**|**B**||**C**<br>**D**||**E**||**F**||**G**|**H**|**Figure**|
||**Min**<br>**Max**|**Min**|**Max**|**Min**|**Max**<br>**Min**<br>**Max**|**Min**|**Max**|**Min**|**Max**|**Min**<br>**Max**|**Min**||
||||||**Size 2018**||||||||
|SMD030F-2018|4.72<br>5.44<br>(0.186) (0.214)|—|1.78<br>(0.070)|4.22<br> (0.166)|4.93<br>0.25<br>0.36<br> (0.194) (0.010) (0.014)|0.25<br> (0.010)|0.36<br> (0.014)|0.30<br> (0.012)|0.46<br> (0.018)|—<br>—|—|1&2|
|decaSMDC050F/60|4.70<br>5.31<br>(0.185) (0.209)|0.63<br> (0.025)|0.89<br> (0.035)|4.19<br> (0.165)|4.81<br>0.25<br>0.95<br> (0.189) (0.010) (0.040)|0.25<br> (0.010)|—|—|—|—<br>—|—|3|
|SMD100F-2018|4.72<br>5.44<br>(0.186) (0.214)|—|1.52<br>0.060)|4.22<br> (0.166)|4.93<br>0.25<br>0.36<br> 0.194) (0.010) (0.014)|0.25<br> (0.010)|0.36<br> (0.014)|0.30<br> (0.012)|0.46<br> (0.018)|—<br>—|—|1&2|
|SMD150F-2018|4.72<br>5.44<br>(0.186) (0.214)|—|1.52<br>(0.060)|4.22<br> (0.166)|4.93<br>0.25<br>0.36<br> (0.194) (0.010) (0.014)|0.25<br> (0.010)|0.36<br> (0.014)|0.30<br> (0.012)|0.46<br> (0.018)|—<br>—|—|1&2|
|SMD200F-2018|4.72<br>5.44<br>0.186) (0.214)|—|1.52<br>(0.060)|4.22<br> (0.166)|4.93<br>0.25<br>0.36<br> (0.194) (0.010) (0.014)|0.25<br> (0.010)|0.36<br> (0.014)|0.30<br> (0.012)|0.46<br> (0.018)|—<br>—|—|1&2|
||||||**Size 2920**||||||||
|SMD030F|6.73<br>7.98<br>(0.265) (0.314)|—|3.18<br>(0.125)|4.80<br>(0.19)|5.44<br>0.56<br>0.71<br>(0.214) (0.022) (0.028)|0.56<br> (0.022)|0.71<br> (0.028)|2.16<br> (0.085)|2.41<br> (0.095)|0.66<br>1.37<br> (0.026) (0.054)|0.43<br> (0.017)|1&2|
|SMDC030F|7.30<br>7.70<br>(0.287) (0.303)|0.63<br> (0.025)|0.90<br> (0.035)|4.90<br> (0193)|5.30<br>0.25<br>0.95<br> (0.209) (0.010) (0.040)|0.20<br> (0.008)|—|—|—|—<br>—|—|3|
|SMD050F|6.73<br>7.98<br>(0.265) (0.314)|—|3.18<br>(0.125)|4.80<br>(0.19)|5.44<br>0.56<br>0.71<br>(0.214) (0.022) (0.028)|0.56<br> (0.022)|0.71<br> (0.028)|2.16<br> (0.085)|2.41<br> (0.095)|0.66<br>1.37<br> (0.026) (0.054)|0.43<br> (0.017)|1&2|
|SMDC50F|7.30<br>7.70<br>(0.297) (0.303)|0.63<br> (0.025)|0.90<br> (0.035)|4.90<br> (0.193)|5.30<br>0.25<br>0.95<br> (0.209) (0.101) (0.040)|0.20<br> (0.008)|—|—|—|—<br>—|—|3|
|SMD075F|6.73<br>7.98<br>(0.265) (0.314)|—|3.18<br>(0.125)|4.80<br>(0.19)|5.44<br>0.56<br>0.71<br>(0.214) (0.022) (0.028)|0.56<br> (0.022)|0.71<br> (0.028)|2.16<br> (0.085)|2.41<br> (0.095)|0.66<br>1.37<br> (0.026) (0.054)|0.43<br> (0.017)|1&2|
|SMDC075F|7.30<br>7.70<br>(0.297) (0.303)|0.63<br> (0.025)|0.90<br> (0.035)|4.90<br> (0.193)|5.30<br>0.25<br>0.95<br> (0.209) (0.101) (0.040)|0.20<br> (0.008)|—|—|—|—<br>—|—|3|
|SMD075F/60|6.73<br>7.98<br>(0.265) (0.314)|—|3.18<br>(0.125)|4.80<br>(0.19)|5.44<br>0.56<br>0.71<br>(0.214) (0.022) (0.028)|0.56<br> (0.022)|0.71<br> (0.028)|2.16<br> (0.085)|2.41<br> (0.095)|0.66<br>1.37<br> (0.026) (0.054)|0.43<br> (0.017)|1&2|
|SMD100F|6.73<br>7.98<br>(0.265) (0.314)|—|3.00<br>(0.118)|4.80<br>(0.19)|5.44<br>0.56<br>0.71<br>(0.214) (0.022) (0.028)|0.56<br> (0.022)|0.71<br> (0.028)|2.16<br> (0.085)|2.41<br> (0.095)|0.66<br>1.37<br> (0.026) (0.054)|0.43<br> (0.017)|1&2|
|SMD100F/33|6.73<br>7.98<br>(0.265) (0.314)|—|3.00<br>(0.118)|4.80<br>(0.19)|5.44<br>0.56<br>0.71<br>(0.214) (0.022) (0.028)|0.56<br> (0.022)|0.71<br> (0.028)|2.16<br> (0.085)|2.41<br> (0.095)|0.66<br>1.37<br> (0.026) (0.054)|0.43<br> (0.017)|1&2|
|SMDH120|6.73<br>7.98<br>(0.265) (0.314)|—|3.00<br>(0.118)|4.80<br>(0.19)|5.44<br>0.56<br>0.71<br>(0.214) (0.022) (0.028)|0.56<br> (0.022)|0.71<br> (0.028)|2.16<br> (0.085)|2.41<br> (0.095)|0.66<br>1.37<br> (0.026) (0.054)|0.43<br> (0.017)|1&2|
|SMD125F|6.73<br>7.98<br>(0.265) (0.314)|—|3.00<br>(0.118)|4.80<br>(0.19)|5.44<br>0.56<br>0.71<br>(0.214) (0.022) (0.028)|0.56<br> (0.022)|0.71<br> (0.028)|2.16<br> (0.085)|2.41<br> (0.095)|0.66<br>1.37<br> (0.026) (0.054)|0.43<br> (0.017)|1&2|
|SMDC125F/33|7.30<br>7.70<br>(0.287) (0.303)|0.45<br> (0.018)|0.71<br> (0.028)|4.90<br> (0.193)|5.30<br>0.25<br>0.95<br> (0.209) (0.010) (0.040)|0.20<br> (0.008)|—|—|—|—<br>—|—|3|



© 2021 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 06/07/21 

**6** 

PTC **Datasheet** 

**Terminal SMD and SMDC Series** Surface Mount 

**Dimension Figures** 

**==> picture [330 x 54] intentionally omitted <==**

**----- Start of picture text -----**<br>
——— a C Fo k= C — G<br>B H B<br>F<br>F<br>D E D E<br>He A aif qk A ar<br>**----- End of picture text -----**<br>


**Figure 1** 

**Figure 2** 

**Figure 3** 

**Dimensions** (Cont’d) 

||||||**Dimensions in Millimeters (Inches)**|**Dimensions in Millimeters (Inches)**|**Dimensions in Millimeters (Inches)**|**Dimensions in Millimeters (Inches)**||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|**Part Number**|**A**|**B**||**C**||**D**|**E**||**F**||**G**|**H**|**Figure**|
||**Min**<br>**Max**|**Min**|**Max**|**Min**|**Max**|**Min**<br>**Max**|**Min**|**Max**|**Min**|**Max**|**Min**<br>**Max**|**Min**||
|||||||**Size 2920**||||||||
|SMD150F/33-2920|6.73<br>7.98<br>(0.265) (0.314)|—|3.00<br>(0.118)|4.80<br>(0.19)|5.44<br>(0.214)|0.56<br>0.71<br> (0.022) (0.028)|0.56<br> (0.022)|0.71<br> (0.028)|2.16<br> (0.085)|2.41<br> (0.095)|0.66<br>1.37<br> (0.026) (0.054)|0.43<br> (0.017)|1&2|
|SMDC185F/33|7.30<br>7.70<br>(0.287) (0.303)|0.90<br> (0.035)|1.20<br> (0.047)|4.90<br> (0.193)|5.30<br> (0.209)|0.25<br>0.95<br> (0.010) (0.040)|0.20<br> (0.008)|—|—|—|—<br>—|—|3|
|SMD200F/24-2920|6.73<br>7.98<br>(0.265) (0.314)|—|3.00<br>(0.118)|4.80<br>(0.19)|5.44<br>(0.214)|0.56<br>0.71<br> (0.022) (0.028)|0.56<br> (0.022)|0.71<br> (0.028)|2.16<br> (0.085)|2.41<br> (0.095)|0.66<br>1.37<br> (0.026) (0.054)|0.43<br> (0.017)|1&2|
|SMD250F/15-2920|6.73<br>7.98<br>(0.265) (0.314)|—|3.00<br>(0.118)|4.80<br>(0.19)|5.44<br>(0.214)|0.56<br>0.71<br> (0.022) (0.028)|0.56<br> (0.022)|0.71<br> (0.028)|2.16<br> (0.085)|2.41<br> (0.095)|0.66<br>1.37<br> (0.026) (0.054)|0.43<br> (0.017)|1&2|
|SMD260F|6.73<br>7.98<br>(0.265) (0.314)|—|3.00<br>(0.118)|4.80<br>(0.19)|5.44<br>(0.214)|0.56<br>0.71<br> (0.022) (0.028)|0.56<br> (0.022)|0.71<br> (0.028)|2.16<br> (0.085)|2.41<br> (0.095)|0.66<br>1.37<br> (0.026) (0.054)|0.43<br> (0.017)|1&2|
|SMD300F|6.73<br>7.98<br>(0.265) (0.314)|—|3.00<br>(0.118)|4.80<br>(0.19)|5.44<br>(0.214)|0.56<br>0.71<br> (0.022) (0.028)|0.56<br> (0.022)|0.71<br> (0.028)|2.16<br> (0.085)|2.41<br> (0.095)|0.66<br>1.37<br> (0.026) (0.054)|0.43<br> (0.017)|1&2|
|SMD300F/15|6.73<br>7.98<br>(0.265) (0.314)|—|3.00<br>(0.118)|4.80<br>(0.19)|5.44<br>(0.214)|0.56<br>0.71<br> (0.022) (0.028)|0.56<br> (0.022)|0.71<br> (0.028)|2.16<br> (0.085)|2.41<br> (0.095)|0.66<br>1.37<br> (0.026) (0.054)|0.43<br> (0.017)|1&2|
|SMDC300F/24|7.30<br>7.70<br>(0.287) (0.303)|0.80<br> (0.031)|1.10<br> (0.043)|4.90<br> (0.193)|5.30<br> (0.209)|0.25<br>0.95<br> (0.010) (0.040)|0.20<br> (0.008)|—|—|—|—<br>—|—|3|
|SMD310F/18|7.30<br>7.70<br>(0.287) (0.303)|1.10<br> (0.043)|1.70<br> (0.067)|4.90<br> (0.193)|5.30<br> (0.209)|0.95<br>1.45<br> (0.040) (0.057)|0.35<br> (0.014)|—|—|—|—<br>—|—|3|
|||||||**Size 3425**||||||||
|SMD150F|8.00<br>9.40<br>(0.315) 0.370)|—|3.00<br>(0.118)|6.00<br> (0.236)|6.71<br> (0.264)|0.56<br>0.71<br> (0.022) (0.028)|0.56<br> (0.022)|0.71<br> (0.028)|3.68<br> (0.145)|3.94<br> (0.155)|0.66<br>1.37<br> (0.026) (0.054)|0.43<br> (0.017)|1&2|
|SMD150F/33|8.00<br>9.40<br>(0.315) (0.370)|—|3.00<br>(0.118)|6.00<br> (0.236)|6.71<br> (0.264)|0.56<br>0.71<br> (0.022) (0.028)|0.56<br> (0.022)|0.71<br> (0.028)|3.68<br> (0.145)|3.94<br> (0.155)|0.66<br>1.37<br> (0.026) (0.054)|0.43<br> (0.017)|1&2|
|SMDH160|8.00<br>9.40<br>(0.315) (0.370)|—|3.00<br>(0.118)|6.00<br> (0.236)|6.71<br> (0.264)|0.56<br>0.71<br> (0.022) (0.028)|0.56<br> (0.022)|0.71<br> (0.028)|3.68<br> (0.145)|3.94<br> (0.155)|0.66<br>1.37<br> (0.026) (0.054)|0.43<br> (0.017)|1&2|
|SMD185F|8.00<br>9.40<br>(0.315) (0.370)|—|3.00<br>(0.118)|6.00<br> (0.236)|6.71<br> (0.264)|0.56<br>0.71<br> (0.022) (0.028)|0.56<br> (0.022)|0.71<br> (0.028)|3.68<br> (0.145)|3.94<br> (0.155)|0.66<br>1.37<br> (0.026) (0.054)|0.43<br> 0.017)|1&2|
|SMD200F|8.00<br>9.40<br>(0.315) (0.370)|—|3.00<br>(0.118)|6.00<br> (0.236)|6.71<br> (0.264)|0.56<br>0.71<br> (0.022) (0.028)|0.56<br> (0.022)|0.71<br> (0.028)|3.68<br> (0.145)|3.94<br> (0.155)|0.66<br>1.37<br> (0.026) (0.054)|0.43<br> (0.017)|1&2|
|SMD250F|8.00<br>9.40<br>(0.315) (0.370)|—|3.00<br>(0.118)|6.00<br> (0.236)|6.71<br> (0.264)|0.56<br>0.71<br> (0.022) (0.028)|0.56<br> (0.022)|0.71<br> (0.028)|3.68<br> (0.145)|3.94<br> (0.155)|0.66<br>1.37<br> (0.026) (0.054)|0.43<br> (0.017)|1&2|



© 2021 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 06/07/21 

**7** 

PTC **Datasheet** 

**Terminal SMD and SMDC Series** Surface Mount 

## **Recommended Pad Layout** 

**==> picture [120 x 58] intentionally omitted <==**

**----- Start of picture text -----**<br>
A<br>|is£<br>B C B<br>“fb<br>**----- End of picture text -----**<br>


## **Packaging and Marking Information** 

|**Part**|**Tape and Reel**|**Standard**|**Part**|**Recommended Pad Layout Figures**<br>**[mm (in)]**|**Recommended Pad Layout Figures**<br>**[mm (in)]**|**Recommended Pad Layout Figures**<br>**[mm (in)]**||
|---|---|---|---|---|---|---|---|
|**Number**|**Quantity**|**Package**|**Marking**|**Dimension A**<br>**(Nom)**|**Dimension B**<br>**(Nom)**|**Dimension C**<br>**(Nom)**|**Agency**<br>**Recognition**|
||||**Size 2018**|**Size 2018**||||
|SMD030F-2018|4,000|20,000|A03F|4.60 (0.18)|1.50 (0.059)|3.40 (0.134)|UL,CSA,TÜV|
|decaSMDC050F/60|1,000|5,000|050F 60V|4.32 (0.17)|1.40 (0.55)|3.61 (0.142)|UL,CSA,TÜV|
|SMD100F-2018|4,000|20,000|A10F|4.60 (0.18)|1.50 (0.059)|3.40 (0.134)|UL,CSA,TÜV|
|SMD150F-2018|4,000|20,000|A15F|4.60 (0.18)|1.50 (0.059)|3.40 (0.134)|UL,CSA,TÜV|
|SMD200F-2018|4,000|20,000|A20F|4.60 (0.18)|1.50 (0.059)|3.40 (0.134)|UL,CSA,TÜV|
||||**Size 2820**|**Size 2820**||||
|SMD030F|2,000|10,000|030F|3.10 (0.12)|2.30 (0.09)|5.10 (0.201)|UL,CSA,TÜV|
|SMDC030F|4,000|20,000|030F|5.30 (0.209)|2.00 (0.079)|4.60 (0.18)|-|
|SMD050F|2,000|10,000|050F|3.10 (0.12)|2.30 (0.09)|5.10 (0.201)|UL,CSA,TÜV|
|SMDC050F|4,000|20,000|050F|5.30 (0.209)|2.00 (0.079)|4.60 (0.18)|-|
|SMD075F|2,000|10,000|075F|3.10 (0.12)|2.30 (0.09)|5.10 (0.201)|UL,CSA,TÜV|
|SMDC075F|4,000|20,000|075F|5.30 (0.209)|2.00 (0.079)|4.60 (0.18)|-|
|SMD075F/60|2,000|10,000|756F|3.10 (0.12)|2.30 (0.09)|5.10 (0.201)|UL,CSA,TÜV|
|SMD100F|2,000|10,000|100F|3.10 (0.12)|2.30 (0.09)|5.10 (0.201)|UL,CSA,TÜV|
|SMD100F/33|2,000|10,000|103F|3.10 (0.12)|2.30 (0.09)|5.10 (0.201)|UL,CSA,TÜV|
|SMDH120|2,000|10,000|H12|3.10 (0.12)|2.30 (0.09)|5.10 (0.201)|UL,CSA,TÜV|
|SMD125F|2,000|10,000|125F|3.10 (0.12)|2.30 (0.09)|5.10 (0.201)|UL,CSA,TÜV|
|SMDC125F/33|4,000|20,000|125F|5.30 (0.209)|2.00 (0.079)|4.60 (0.18)|UL|
|SMD150F/33-2920|2,000|10,000|S15F|3.10 (0.12)|2.30 (0.09)|5.10 (0.201)|UL,CSA,TÜV|
|SMDC185F/33|4,000|20,000|185F 33V|5.30 (0.209)|2.00 (0.079)|4.60 (0.18)|UL,CSA,TÜV|
|SMD200F/24-2920|2,000|10,000|S20F|3.10 (0.12)|2.30 (0.09)|5.10 (0.201)|UL,CSA,TÜV|
|SMD250F/15-2920|2,000|10,000|S25F|3.10 (0.12)|2.30 (0.09)|5.10 (0.201)|UL,CSA,TÜV|
|SMD260F|2,000|10,000|260F|3.10 (0.12)|2.30 (0.09)|5.10 (0.201)|UL,CSA,TÜV|
|SMD300F|2,000|10,000|300F|3.10 (0.12)|2.30 (0.09)|5.10 (0.201)|UL,CSA,TÜV|
|SMD300F/15|2,000|10,000|315F|3.10 (0.12)|2.30 (0.09)|5.10 (0.201)|UL,CSA,TÜV|
|SMDC300F/24|4,000|20,000|300F 24V|5.30 (0.209)|2.00 (0.079)|4.60 (0.18)|UL,CSA,TÜV|
|SMD310F/18|3,000|15,000|310F18V|5.30 (0.209)|2.00 (0.079)|4.60 (0.18)|UL,CSA,TÜV|
||||**Size 3425**|**Size 3425**||||
|SMD150F|1,500|7,500|150F|4.60 (0.18)|2.30 (0.09)|6.10 (0.240)|UL,CSA,TÜV|
|SMD150F/33|1,500|7,500|153F|4.60 (0.18)|2.30 (0.09)|6.10 (0.240)|UL,CSA,TÜV|
|SMDH160|1,500|7,500|160F|4.60 (0.18)|2.30 (0.09)|6.10 (0.240)|UL,CSA,TÜV|
|SMD185F|1,500|7,500|185F|4.60 (0.18)|2.30 (0.09)|6.10 (0.240)|UL,CSA,TÜV|
|SMD200F|1,500|7,500|200F|4.60 (0.18)|2.30 (0.09)|6.10 (0.240)|UL,CSA,TÜV|
|SMD250F|1,500|7,500|250F|4.60 (0.18)|2.30 (0.09)|6.10 (0.240)|UL,CSA,TÜV|



© 2021 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 06/07/21 

**8** 

PTC **Datasheet** 

## **Terminal SMD and SMDC Series** Surface Mount a 

## **Solder Reflow Recommendations** 

|**Profile Feature**<br>**Average ramp up rate (TsMAX to Tp)**<br>**Preheat**<br>•  Temperature min (TsMIN)<br>•  Temperature max (TsMAX)<br>•  Time (tsMINto tsMAX)<br>**Time maintained above:**<br>•  Temperature (TL)<br>•  Time (tL)|Pb-Free Assembly<br>3°C/s max<br>150°C<br>200°C<br>60-120 s<br>217°C<br>60-150 s||Critical Zone<br>TLto Tp<br>Ramp Up<br>t 25˚C to Peak<br>Reflow Profile<br>**Time**<br>Ramp Down<br>ts<br>Preheat<br>TsMAX<br>TL<br>Tp<br>tp<br>25<br>TsMIN<br>tL<br>**Temperature**<br>A~~.~~|Critical Zone<br>TLto Tp<br>Ramp Up<br>t 25˚C to Peak<br>Reflow Profile<br>**Time**<br>Ramp Down<br>ts<br>Preheat<br>TsMAX<br>TL<br>Tp<br>tp<br>25<br>TsMIN<br>tL<br>**Temperature**<br>A~~.~~|Critical Zone<br>TLto Tp<br>Ramp Up<br>t 25˚C to Peak<br>Reflow Profile<br>**Time**<br>Ramp Down<br>ts<br>Preheat<br>TsMAX<br>TL<br>Tp<br>tp<br>25<br>TsMIN<br>tL<br>**Temperature**<br>A~~.~~|Critical Zone<br>TLto Tp<br>Ramp Up<br>t 25˚C to Peak<br>Reflow Profile<br>**Time**<br>Ramp Down<br>ts<br>Preheat<br>TsMAX<br>TL<br>Tp<br>tp<br>25<br>TsMIN<br>tL<br>**Temperature**<br>A~~.~~|Critical Zone<br>TLto Tp<br>Ramp Up<br>t 25˚C to Peak<br>Reflow Profile<br>**Time**<br>Ramp Down<br>ts<br>Preheat<br>TsMAX<br>TL<br>Tp<br>tp<br>25<br>TsMIN<br>tL<br>**Temperature**<br>A~~.~~|Critical Zone<br>TLto Tp<br>Ramp Up<br>t 25˚C to Peak<br>Reflow Profile<br>**Time**<br>Ramp Down<br>ts<br>Preheat<br>TsMAX<br>TL<br>Tp<br>tp<br>25<br>TsMIN<br>tL<br>**Temperature**<br>A~~.~~|Critical Zone<br>TLto Tp<br>Ramp Up<br>t 25˚C to Peak<br>Reflow Profile<br>**Time**<br>Ramp Down<br>ts<br>Preheat<br>TsMAX<br>TL<br>Tp<br>tp<br>25<br>TsMIN<br>tL<br>**Temperature**<br>A~~.~~|Critical Zone<br>TLto Tp<br>Ramp Up<br>t 25˚C to Peak<br>Reflow Profile<br>**Time**<br>Ramp Down<br>ts<br>Preheat<br>TsMAX<br>TL<br>Tp<br>tp<br>25<br>TsMIN<br>tL<br>**Temperature**<br>A~~.~~|Critical Zone<br>TLto Tp<br>Ramp Up<br>t 25˚C to Peak<br>Reflow Profile<br>**Time**<br>Ramp Down<br>ts<br>Preheat<br>TsMAX<br>TL<br>Tp<br>tp<br>25<br>TsMIN<br>tL<br>**Temperature**<br>A~~.~~|Critical Zone<br>TLto Tp<br>Ramp Up<br>t 25˚C to Peak<br>Reflow Profile<br>**Time**<br>Ramp Down<br>ts<br>Preheat<br>TsMAX<br>TL<br>Tp<br>tp<br>25<br>TsMIN<br>tL<br>**Temperature**<br>A~~.~~|Critical Zone<br>TLto Tp<br>Ramp Up<br>t 25˚C to Peak<br>Reflow Profile<br>**Time**<br>Ramp Down<br>ts<br>Preheat<br>TsMAX<br>TL<br>Tp<br>tp<br>25<br>TsMIN<br>tL<br>**Temperature**<br>A~~.~~|Critical Zone<br>TLto Tp<br>Ramp Up<br>t 25˚C to Peak<br>Reflow Profile<br>**Time**<br>Ramp Down<br>ts<br>Preheat<br>TsMAX<br>TL<br>Tp<br>tp<br>25<br>TsMIN<br>tL<br>**Temperature**<br>A~~.~~|Critical Zone<br>TLto Tp<br>Ramp Up<br>t 25˚C to Peak<br>Reflow Profile<br>**Time**<br>Ramp Down<br>ts<br>Preheat<br>TsMAX<br>TL<br>Tp<br>tp<br>25<br>TsMIN<br>tL<br>**Temperature**<br>A~~.~~|Critical Zone<br>TLto Tp<br>Ramp Up<br>t 25˚C to Peak<br>Reflow Profile<br>**Time**<br>Ramp Down<br>ts<br>Preheat<br>TsMAX<br>TL<br>Tp<br>tp<br>25<br>TsMIN<br>tL<br>**Temperature**<br>A~~.~~|Critical Zone<br>TLto Tp<br>Ramp Up<br>t 25˚C to Peak<br>Reflow Profile<br>**Time**<br>Ramp Down<br>ts<br>Preheat<br>TsMAX<br>TL<br>Tp<br>tp<br>25<br>TsMIN<br>tL<br>**Temperature**<br>A~~.~~|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|**Peak/Classification temperature (Tp)**|260°C|||Reflow Profile|Reflow Profile|Reflow Profile|Reflow Profile|||||||||||
|||||||||||||||||||
|**Time within 5°C of actual peak temperature**||||||||||||||||||
|Time (tp)|30 s max|||||||||||||||||
|**Ramp down rate**|3°C/s max|||||||||||||||||
|**Time 25°C to peak temperature**|8 min max|||||||||||||||||



**Note:** All temperatures refer to topside of the package, measured on the package body surface. 

## **Solder Reflow** 

- Recommended reflow method: IR, hot air, nitrogen. 

- Recommended maximum paste thickness: 0.25mm (0.010in) 

- Devices can be cleaned using standard methods and aqueous solvents. 

- Experience has shown the optimum conditions for forming acceptable solder fillets occur when a reasonable amount of solder paste is placed underneath each device’s termination.  As such, we request that customers comply with our recommended solder pad layouts. 

- Customer should validate that the solder paste amount and reflow recommendations meet its application. 

- We request that customer board layouts refrain from placing raised features (e.g. vias, nomenclature, traces, etc.) underneath PolySwitch devices. It is possible that raised features could negatively impact solderability performance of our devices. 

## **Rework** 

- Standard industry practices. (Please also avoid direct contact to the device.) 

## **Part Ordering Number System** 

**SMD   150   F   /33    -2920    -2** 

**==> picture [132 x 95] intentionally omitted <==**

**----- Start of picture text -----**<br>
Packaging<br>2 = Tape and Reel<br>Footprint<br>Alternative Voltage Rating (If Applicable)<br>Lead Free<br>Hold Current Indicator<br>SMD:  Terminal Surface Mount PPTC<br>SMDH: High Temperature Terminal SMD PPTC<br>SMDC:  Surface Mount PPTC<br>**----- End of picture text -----**<br>


© 2021 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 06/07/21 

**9** 

PTC **Datasheet** 

**Terminal SMD and SMDC Series** Surface Mount 

## **Tape and Reel Specifications** 

|**Description**<br>**W**|**2018 Size**<br>**EIA 481-2(mm)**|**2018 Size**<br>**EIA 481-2(mm)**|**2920 Size**<br>**EIA 481-2(mm)**|**2920 Size**<br>**EIA 481-2(mm)**|**2920 Size**<br>**EIA 481-2(mm)**|**2920 Size**<br>**EIA 481-2(mm)**|**3425 Size**<br>**EIA 481-2(mm)**|
|---|---|---|---|---|---|---|---|
||**SMD030F-2018**<br>**SMD100F-2018**<br>**SMD150F-2018**<br>**SMD200F-2018**<br>16.0 ± 0.30|**decaSMDC050F/60**<br>12.0 ± 0.30|**SMD030F**<br>**SMD050F**<br>**SMD075F**<br>**SMD075F/60**<br>**SMD100F**<br>**SMD100F/33**<br>**SMDH120**<br>**SMD125F**<br>**SMD150F/33-2920**<br>**SMD200F/24-2920**<br>**SMD250F/15-2920**<br>**SMD260F**<br>**SMD300F**<br>**SMD300F/15**<br>16.0 ± 0.30|**SMDC030F**<br>**SMDC050F**<br>**SMDC075F**<br>**SMDC125F/33**<br>16.0 ± 0.30|**SMDC185F/33**<br>**SMDC300F/24**<br>16.0 ± 0.30|**SMDC310F/18**<br>16.0 ± 0.30|**SMD150F**<br>**SMD150F/33**<br>**SMDH160**<br>**SMD185F**<br>**SMD200F**<br>**SMD250F**<br>16.0 ± 0.30|
|**P0**|4.0 ± 0.10|4.0 ± 0.10|4.0 ± 0.10|4.0 ± 0.10|4.0 ± 0.10|4.0 ± 0.10|4.0 ± 0.10|
|**P1**|8.0 ± 0.10|8.0 ± 0.10|8.0 ± 0.10|8.0 ± 0.10|8.0 ± 0.10|8.0 ± 0.10|12.0 ± 0.10|
|**P2**|2.0 ± 0.10|2.0 ± 0.05|2.0 ± 0.10|2.0 ± 0.10|2.0 ± 0.10|2.0 ± 0.10|2.0 ± 0.10|
|**A0**|5.11 ± 0.15|5.0 ± 0.1|5.6 ± 0.23|5.5 ± 0.1|5.35 ± 0.1|5.5 ± 0.1|6.9 ± 0.23|
|**B0**|5.6 ± 0.23|5.4 ± 0.1|8.1 ± 0.15|7.9 ± 0.1|7.85 ± 0.1|8.0 ± 0.1|9.6 ± 0.15|
|**B1 max**|6.4|6,2|12.1|12,1|12,1|12,1|12.1|
|**D0**|1.5 + 0.10/ -.00|1.55 ± 0.05|1.5 + 0.10/ -.00|1.5 +<br>0.10/ -.00|1.5 +<br>0.10/ -.00|1.5 +<br>0.10/ -.00|1.5 +<br>0.10/ -.00|
|**F**|7.50 ± 0.10|5.50 ± 0.10|7.50 ± 0.10|7.50 ± 0.10|7.50 ± 0.10|7.50 ± 0.10|7.50 ± 0.10|
|**E1**|1.75 ± 0.10|1.75 ± 0.10|1.75 ± 0.10|1.75 ± 0.10|1.75 ± 0.10|1.75 ± 0.10|1.75 ± 0.10|
|**E2 min**|14.25|10,25|14.25|14,25|14,25|14,25|14.25|
|**T max**|0.4|0,4|0.4|0,35|0,35|0,35|0.4|
|**T1 max**|0.1|0,1|0.1|0,1|0,1|0,1|0.1|
|**K0**|1.8 ± 0.15|1.7 ± 0.1|3.2 ± 0.15|0.9 ± 0.1|1.45 ± 0.1|2.0 ± 0.1|3.4 ± 0.15|
|**A max**|330|330|330|330|330|330|330|
|**N min**|50|50|50|50|50|50|50|
|**W1**|16.4 + 2.0/-.00|16.4 + 2.0/-.00|16.4 + 2.0/-.00|16.4 +<br>2.0/-.00|16.4 +<br>2.0/-.00|16.4 +<br>2.0/-.00|16.4 +<br>2.0/-.00|
|**W2 max**|22.4|22.4|22.4|22.4|22.4|22.4|22.4|



© 2021 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 06/07/21 

**10** 

PTC **Datasheet** 

## **Terminal SMD and SMDC Series** Surface Mount 

## **Tape and Reel Diagrams** 

**==> picture [454 x 329] intentionally omitted <==**

**----- Start of picture text -----**<br>
T<br>P 0<br>in Cover Tape --<br>P2 D0<br>E1<br>F<br>W<br>B1 K0 B0 E2<br>relffel<br>T t aa PEEK<br>T1<br>Embossment A 0 P 1 N\<br>Center lines<br>Figure 1 of cavity<br>W2 (Measured at Hub)<br>i A | N (Hub Dia.)<br>Cover Tape<br>Carrier Tape W1 (Measured at Hub)<br>Me M S T<br>Embossed Cavity<br>**----- End of picture text -----**<br>


**Figure 2** 

## **Warning** 

- Users should independently evaluate the suitability of and test each product selected for their own application. 

- Operation beyond the maximum ratings or improper use may result in device damage and possible electrical arcing and flame. 

- These devices are intended for protection against damage caused by occasional overcurrent or overtemperature fault conditions and should not be used when repeated fault conditions or prolonged trip events are anticipated. 

- Contamination of the PPTC material with certain silicone-based oils or some aggressive solvents can adversely impact the performance of the devices. 

- Device performance can be impacted negatively if devices are handled in a manner inconsistent with recommended electronic, thermal, and mechanical procedures for electronic components. 

- PPTC devices are not recommended for installation in applications where the device is constrained such that its PTC properties are inhibited, for example in rigid potting materials or in rigid housings, which lack adequate clearance to accommodate device expansion. 

- Operation in circuits with a large inductance can generate a circuit voltage (Ldi/dt) above the rated voltage of the device. 

**Disclaimer Notice -** Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at www.littelfuse.com/disclaimer-electronics. 

© 2021 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 06/07/21 

**11**
Updated at April 12, 2026
Founded in 1927 and headquartered in Chicago, Illinois, Littelfuse is a premier global manufacturer of circuit protection, power control, and sensing technologies. Widely recognized for pioneering the first small, fast-acting protective fuse, the company has grown into an industry leader whose highly reliable components are essential to modern industrial, transportation, and consumer electronics applications worldwide. At the core of the Littelfuse portfolio is an expansive and industry-leading range of circuit protection solutions. This encompasses a massive selection of traditional fuses, fuse holders, and resettable PTC thermistor fuses designed to safely interrupt overcurrent conditions. To defend against electrical overstress, Littelfuse also provides advanced transient voltage suppression (TVS) technologies, including thousands of specialized TVS diodes, TVS varistors, and gas discharge tubes (GDTs) that ensure robust defense against voltage spikes and environmental hazards. Beyond its foundational protection components, Littelfuse manufactures a diverse array of discrete semiconductors, sensors, and switching devices. Engineers rely on their high-performance thyristors, including TRIACs and SCRs, alongside power-efficient Schottky diodes and MOSFETs for demanding power control applications. Complemented by precision proximity sensors and highly reliable reed and solid-state relays, Littelfuse delivers the critical building blocks required for secure, efficient, and complete system design.
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