SMD1812B075TF/33

Resettable Fuse, PPTC, 1812 (4532 Metric), SMD1812 Series, 33 VDC, 750 mA, 1.5 A, 0.2 s

⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.

Manufacturer: YAGEO
Product type: Surface Mount PPTCs
Thermistor Mounting:SMD; Product Range:SMD1812 Series; Holding Current:750mA; Tripping Current:1.5A; Voltage Rating:33VDC; Operating Temperature Min:-40°C; Operating Temperature M
SVHC: No SVHC (15-Jan-2019)
Time to Trip: 0.2s
Trip Current: 1.5A
Product Range: SMD1812 Series
Voltage Rating: 33VDC
Holding Current: 750mA
PPTC Case Style: 1812 (4532 Metric)
Current Rating Max: 20A
Operating Temperature Max: 85°C
Operating Temperature Min: -40°C
Automotive Qualification Standard: -

Delivery and price
Units per pack	1000
Price	0.063 €
Current stock	10+
Lead time	30 days

Datasheet

DATA SHEET POSITIVE TEMPERATURE COEFFICIENT AC/DC POWER SUPPLY SMD1812 series **RoHS compliant & Halogen free** 

a tf OUR 55 .| — 

> Product Specification 2 ~~]~~ 12 

Circuit Protection 

POSITIVE TEMPERATURE COEFFICIENT 

SMD1812 

## **Positive Temperature Coefficient (PTC) Data Sheet** 

## **Description** 

The 1812 series provides surface mount resettable overcurrent protection with holding current from 0.1A to 3.0A. This series offers complete portfolio in terms of holding current and working voltage, and is suitable for wide range of application. 

## **Features** 

- RoHS compliant and lead-free 

- Halogen-free 

- Compact design saves board space 

- Low profile 

- Fast response to fault current 

- Compatible with high temperature solders 

## **Applications** 

- USB hubs, ports and peripherals 

- Set-top-box and HDMI 

- Game console port protection 

- Motherboard USB & IEEE 1394 protection 

- Optical disk drives 

- General electronics 

## **Agency Approval and Environmental Compliance** 

|Agency|File Number||Regulation|Standard|
|---|---|---|---|---|
|UL/CUL|E482628||RoHS|2011/65/EU|
|TUV|B160696048001||Halogen Free|EN 14582:2007|



## **Electrical Characteristics** 

|Part<br>Number<br>~~es~~<br>~~a~~|Ihold<br>(A)<br>~~a~~|Itrip<br>(A)<br>~~ee~~|Vmax<br>(Vdc)<br>~~ee~~|Imax<br>(A)<br>~~ee~~|Pd typ.<br>(W)<br>~~ee~~|Maximum<br>Time To Trip|Maximum<br>Time To Trip|Resistance|Resistance|
|---|---|---|---|---|---|---|---|---|---|
|||||||Time<br>(Sec.)<br>~~ee~~|Current<br>(A)<br>~~ee~~<br>~~eee~~|Rmin<br>(Ω)<br>~~ee~~<br>~~eee~~|R1max<br>(Ω)<br>~~ee~~<br>~~eee~~|
|SMD1812B010TF<br>~~es~~<br>~~a~~<br>~~rr~~|0.10<br>~~a~~<br>|0.30<br>~~ee~~<br>~~ef~~<br>|30<br>~~ee~~<br>~~ef~~<br>|100<br>~~ee~~<br>~~ef~~<br>|0.8<br>~~ee~~<br>|1.50<br>~~ee~~<br>|0.50<br>~~ee~~<br>~~eee~~<br>|1.600<br>~~ee~~<br>~~eee~~<br>|15.000<br>~~ee~~<br>~~eee~~<br>|
|SMD1812B014TF<br>~~es ~~<br>~~a~~<br>~~rr~~|0.14<br> ~~a~~<br>|0.34<br>~~ee~~<br>~~ef~~<br>|60<br>~~ee~~<br>~~ef~~<br>|10<br>~~ee~~<br>~~ef~~<br>|0.8<br>~~ee~~<br>|0.15<br>~~ee~~<br>|1.50<br>~~ee~~<br>~~eee~~<br>|1.500<br>~~ee~~<br>~~eee~~<br>|6.000<br>~~ee~~<br>~~eee~~<br>|
|SMD1812B020TF<br>~~a~~<br>~~rr ~~<br>~~a~~|0.20<br> ~~eee~~<br>~~ee~~|0.40<br>~~ef~~<br>~~eee~~<br>~~ee~~|30<br>~~ef~~<br>~~eee~~<br>~~ee~~|100<br>~~ef~~<br>~~eee~~<br>~~ee~~|0.8<br>~~eee~~<br>~~ee~~|0.02<br>~~eee~~<br>~~ee~~|8.00<br>~~eee~~<br>~~eee~~<br>~~eee~~<br>~~ee~~|0.800<br>~~eee~~<br>~~eee~~<br>~~eee~~<br>~~ee~~|5.000<br>~~eee~~<br>~~eee~~<br>~~eee~~<br>~~ee~~|
|SMD1812B020TF-J<br>~~rr ~~<br>~~a~~|0.20<br> <br>~~ee~~|0.40<br>~~ef~~<br><br>~~ee~~|60<br>~~ef~~<br><br>~~ee~~|40<br>~~ef~~<br><br>~~ee~~|0.8<br><br>~~ee~~|2.00<br><br>~~ee~~|1.00<br><br>~~eee~~<br>~~ee~~|0.700<br><br>~~eee~~<br>~~ee~~|5.000<br><br>~~eee~~<br>~~ee~~|
|SMD1812B035TF/30<br>~~a~~<br>~~ee~~<br>~~a~~<br>~~EE~~|0.35<br>~~ee~~<br>~~ee~~<br>~~|~~<br>|0.75<br>~~ee~~<br>~~ee~~<br>~~|~~<br>|30<br>~~ee~~<br>~~ee~~<br>~~|)~~<br>|40<br>~~ee~~<br>~~ee~~<br>~~ee~~<br>~~|)~~<br>|0.8<br>~~ee~~<br>~~ee~~<br>~~ee~~<br>|0.15<br>~~ee~~<br>~~ee~~<br>~~eee~~<br>|8.00<br>~~eee~~<br>~~ee~~<br>~~ee~~<br>~~eee~~<br>|0.400<br>~~eee~~<br>~~ee~~<br>~~ee~~<br>~~eee~~<br>|1.700<br>~~eee~~<br>~~ee~~<br>~~ee~~<br>~~eee~~<br>|
|SMD1812B050TF<br>~~a~~<br>~~EE~~|0.50<br>~~|~~<br>|1.00<br>~~|~~<br>|15<br>~~|)~~<br>|100<br>~~ee~~<br>~~|)~~<br>|0.8<br>~~ee~~<br>|0.15<br>~~eee~~<br>|8.00<br>~~eee~~<br>|0.150<br>~~eee~~<br>|1.000<br>~~eee~~<br>|
|SMD1812B050TF/30<br>~~a ~~<br>~~EE~~<br>~~a~~<br>~~a~~|0.50<br> ~~|~~<br>~~ee~~<br>~~|~~<br>|1.00<br>~~|~~<br>~~ee~~<br>|<br>|30<br>~~|)~~<br>~~ee~~<br>~~a Le~~<br>|100<br>~~ee~~<br>~~|)~~<br>~~eee~~<br>~~Le~~<br>|0.8<br>~~ee ~~<br>~~eee~~<br>~~Le~~<br>|0.15<br> ~~eee~~<br>~~eee~~<br>|8.00<br>~~eee ~~<br>~~eee~~<br>~~ee~~<br>|0.150<br> ~~eee~~<br>~~eee~~<br>~~ee~~<br>|1.000<br>~~eee~~<br>~~eee~~<br>|
|SMD1812B075TF<br> <br>~~EE ~~<br>~~a~~<br>~~a~~|0.75<br> ~~|~~<br> ~~ee~~<br>~~|~~<br>|1.50<br>~~|~~<br>~~ee~~<br>|<br>|13.2<br>~~|)~~<br>~~ee~~<br>~~a Le~~<br>|100<br>~~|)~~<br>~~eee~~<br>~~Le~~<br>|0.8<br>~~eee~~<br>~~Le~~<br>|0.20<br>~~eee~~<br>|8.00<br>~~eee~~<br>~~ee~~<br>|0.100<br>~~eee~~<br>~~ee~~<br>|0.450<br>~~eee~~<br>|
|SMD1812B075TF/24<br> <br>~~a~~<br>~~a ~~|0.75<br> ~~ee~~<br>~~|~~<br> ~~ee~~|1.50<br>~~ee~~<br>|<br>~~ee~~|24<br>~~ee ~~<br>~~a Le~~<br>~~ee~~|100<br> ~~eee~~<br>~~Le ~~<br>~~ee~~|0.8<br>~~eee ~~<br> ~~Le~~<br>~~ee~~|0.20<br> ~~eee~~<br>~~ee~~|8.00<br>~~eee ~~<br>~~ee~~<br>~~ee~~|0.100<br> ~~eee~~<br>~~ee~~<br>~~ee~~<br>~~ee~~|0.290<br>~~eee~~<br>~~ee~~<br>~~ee~~|



www.yageo.com 

Circuit Protection 

> Product Specification 3 12 

POSITIVE TEMPERATURE COEFFICIENT 

SMD1812 

## **Electrical Characteristics** 

|||||||Maximum<br>Time To Trip|Maximum<br>Time To Trip|||
|---|---|---|---|---|---|---|---|---|---|
|||||||||Resistance||
|Part<br>Number|Ihold<br>(A)|Itrip<br>(A)|Vmax<br>(Vdc)|Imax<br>(A)|Pd typ.<br>(W)|||||
|||||||||||
|||||||Time<br>(Sec.)|Current<br>(A)|Rmin<br>(Ω)|R1max<br>(Ω)|
|||||||||||
|SMD1812B075TF/33|0.75|1.50|33|20|0.8|0.20|8.00|0.100|0.400|
|SMD1812B110TF|1.10|2.20|8|100|0.8|0.30|8.00|0.040|0.210|
|SMD1812B110TF/16|1.10|1.95|16|100|0.8|0.30|8.00|0.060|0.180|
|SMD1812B110TF/24|1.10|1.95|24|20|0.8|0.50|8.00|0.060|0.200|
|SMD1812B110TF/33|1.10|1.95|33|20|0.8|0.50|8.00|0.060|0.200|
|SMD1812B125TF/16|1.25|2.50|16|100|0.8|0.40|8.00|0.050|0.140|
|SMD1812B125TF/6,4L|1.25|2.50|6|100|0.8|0.40|8.00|0.050|0.140|
|SMD1812B150TF/8|1.50|3.00|8|100|0.8|0.30|8.00|0.040|0.120|
|SMD1812B150TF/12|1.50|3.00|12|100|0.8|0.50|8.00|0.040|0.120|
|SMD1812B150TF/16|1.50|2.80|16|100|0.8|0.50|8.00|0.040|0.120|
|SMD1812B150TF/24|1.50|3.00|24|20|0.8|1.50|8.00|0.040|0.120|
|SMD1812B160TF/8(4L)|1.60|2.8|8|100|0.8|0.30|8.00|0.030|0.100|
|SMD1812B160TF/16|1.60|2.80|16|100|0.8|0.80|8.00|0.030|0.100|
|SMD1812B200TFT|2.00|3.50|8|100|0.8|2.00|8.00|0.020|0.070|
|SMD1812B200TF/12|2.00|3.50|12|100|1.0|2.00|8.00|0.020|0.075|
|SMD1812B200TF/16|2.00|3.50|16|100|1.0|2.00|8.00|0.020|0.075|
|SMD1812B260TFT|2.60|5.00|8|100|0.8|2.50|8.00|0.015|0.047|
|SMD1812B260TF/12|2.60|5.00|12|100|0.8|5.00|8.00|0.015|0.055|
|SMD1812B260TF/16|2.60|5.00|16|100|1.2|5.00|8.00|0.015|0.050|
|SMD1812B300TFT|3.00|5.00|6|100|0.8|4.00|8.00|0.012|0.040|



## **Note on Electrical Characteristics** 

## ■ Vocabulary 

- Ihold = Hold current: maximum current device will pass without tripping in 23 ℃ still air. 

- Itrip = Trip current: minimum current at which the device will trip in 23 ℃ still air. 

- Vmax = Maximum voltage device can withstand without damage at rated current (Imax) 

- Imax = Maximum fault current device can withstand without damage at rated voltage (Vmax) 

- Pd typ. = Typical power dissipated from device when in the tripped state at 23 ℃ still air. 

- Rmin = Minimum resistance of device in initial (un-soldered) state. 

- R1max = Maximum resistance of device at 23 ℃ measured one hour after tripping or reflow soldering of 260 ℃ for 20 sec. 

- ■ Value specified is determined by using the PWB with 0.030”*1.5oz copper traces. 

- Caution: Operation beyond the specified rating may result in damage and possible arcing and flame. 

- Specifications are subject to change without notice. 

www.yageo.com 

Nov. 05, 2018 V.0 

Circuit Protection 

> Product Specification 4 12 

POSITIVE TEMPERATURE COEFFICIENT 

SMD1812 

## **Polymeric PTC Selecting Guide** 

## ■ Determine the following operating parameters for the circuits: 

- Normal operating current (Ihold) 

      - Maximum interrupt current (Imax) 

   - Maximum circuit voltage (Vmax) · Normal operating temperature surrounding device (min ℃ /max ℃ ) 

- Select the device from factor and dimension suitable for the application 

- Compare the maximum rating for Vmax and Imax of the PPTC device with the circuit in application and make sure the circuit’s requirement does not exceed the device rating. 

- Check that PPTC device’s trip time (time-to-trip) will protect the circuit. 

- Verify that the circuit operating temperature is within the PPTC device’s normal operating temperature range. 

- Verify that performance and suitability of the chosen PPTC device in the application. 

## ! 

## **WARNING** 

## ■ Mechanical Stress 

- PPTC devices will undergo a thermal expansion during fault condition. If PPTC devices are installed or placed in an application where the space between PPTC devices and the surrounding materials (e.g., covering materials, packaging materials, encapsulate materials and the like) is insufficient, it will cause an inhibiting effect upon the thermal expansion. Pressing, twisting, bending and other kinds of mechanical stress will also adversely affect the performance of the PPTC devices, and shall not be used or applied. 

## ■ Chemical Pollutants 

- Silicone-based oils, oils, solvents, gels, electrolytes, fuels, acids, and the like will adversely affect the properties of PPTC devices, 

- and shall not be used or applied. 

## ■ Electronic and Thermal Effect 

   - PPTC devices are secondary protection devices and are used solely for sporadic, accidental over-current or over-temperature error condition, and shall NOT be used if or when constant or repeated fault conditions (such fault conditions may be caused by, among others, incorrect pin-connection of a connector) or over-extensive trip events may occur. 

- PPTC devices are different from fuses and, when a fault condition occurs, will go into high-resistance state and do not open circuit, in which case the voltage at such PPTC devices may reach a hazardous level. 

- Operation over the maximum rating or other forms of improper use may cause failure, arcing, flame and/or other damage to the PPTC devices. 

- Conductive material contamination, such as metal particle, may induce shortage, flame or arcing. 

- Due to the inductance, the operation circuits may generate a circuit voltage (Ldi/dt) above the rated voltage of PPTC devices, which shall not be used under such circumstances. 

## ■ General 

   - Customers shall evaluate and test the properties of PPTC devices independently to verify and ensure that their individual applications will be met. 

- The performance of PPTC devices will be adversely affected if they are improperly used under electronic, thermal and/or mechanical procedures and/or conditions non-conformant to those recommended by manufacturer. 

- Customers shall be responsible for determining whether it is necessary to have back-up, failsafe and/or fool-proof protection To avoid or minimize damage that may result from extra-ordinary, irregular function or failure of PPTC devices. 

- Any and all responsibilities and liabilities are disclaimed if any item under this notice of warning is not complied with. 

www.yageo.com 

Nov. 05, 2018 V.0 

Circuit Protection 

> Product Specification 5 12 

POSITIVE TEMPERATURE COEFFICIENT 

**==> picture [38 x 7] intentionally omitted <==**

**----- Start of picture text -----**<br>
SMD1812<br>**----- End of picture text -----**<br>


## **Thermal Derating Curve** 

**==> picture [254 x 228] intentionally omitted <==**

**----- Start of picture text -----**<br>
200.00<br>150.00<br>100.00<br>50.00<br>0.00<br>-40.00 0.00 40.00 80.00 120.00<br>Device Ambient Temperature ( ℃ )<br>Percentage of Rated Current<br>**----- End of picture text -----**<br>


## **Thermal Derating Chart** 

Recommended Hold Current (A) at Ambient Temperature ( ℃ ) 

|||||||||||
|---|---|---|---|---|---|---|---|---|---|
||||Ambient Operation Temperature|||||||
|Part<br>Number||||||||||
||-40℃|-20℃|0℃|23℃|40℃|50℃|60℃|70℃|85℃|
|||||||||||
|||||||||||
|SMD1812B010TF|0.16|0.14|0.12|0.10|0.08|0.07|0.06|0.05|0.03|
|SMD1812B014TF|0.23|0.19|0.17|0.14|0.12|0.10|0.09|0.08|0.06|
|SMD1812B020TF|0.29|0.26|0.23|0.20|0.17|0.15|0.14|0.12|0.10|
|SMD1812B020TF-J|0.29|0.26|0.23|0.20|0.17|0.15|0.14|0.12|0.10|
|SMD1812B035TF/30|0.50|0.45|0.40|0.35|0.30|0.26|0.24|0.20|0.16|
|SMD1812B050TF|0.77|0.68|0.59|0.50|0.44|0.40|0.37|0.33|0.29|
|SMD1812B050TF/30|0.77|0.68|0.59|0.50|0.44|0.40|0.37|0.33|0.29|
|SMD1812B075TF|1.15|1.01|0.88|0.75|0.65|0.60|0.55|0.49|0.43|
|SMD1812B075TF/24|1.06|0.95|0.84|0.75|0.60|0.55|0.50|0.45|0.37|
|SMD1812B075TF/33|1.10|1.00|0.88|0.75|0.66|0.60|0.56|0.47|0.36|
|SMD1812B110TF|1.59|1.43|1.26|1.10|0.95|0.87|0.80|0.71|0.60|
|SMD1812B110TF/16|1.58|1.43|1.27|1.10|0.95|0.85|0.77|0.71|0.58|
|SMD1812B110TF/24|1.55|1.40|1.25|1.10|0.93|0.83|0.73|0.63|0.50|
|SMD1812B110TF/33|1.55|1.40|1.25|1.10|0.93|0.83|0.73|0.63|0.50|
|SMD1812B125TF/16|2.00|1.75|1.52|1.25|1.00|0.95|0.90|0.75|0.53|
|SMD1812B125TF/6,4L|2.00|1.75|1.52|1.25|1.00|0.95|0.90|0.75|0.53|
|SMD1812B150TF/8|2.06|1.93|1.79|1.50|1.28|1.10|1.02|0.80|0.68|
|SMD1812B150TF/12|2.04|1.88|1.68|1.50|1.25|1.10|1.00|0.80|0.60|



www.yageo.com 

Nov. 05, 2018 V.0 

Circuit Protection 

> Product Specification 6 12 

POSITIVE TEMPERATURE COEFFICIENT 

## SMD1812 

|Part<br>Number|||Ambient Operation Temperature|Ambient Operation Temperature|Ambient Operation Temperature|Ambient Operation Temperature|Ambient Operation Temperature|||
|---|---|---|---|---|---|---|---|---|---|
||-40℃|-20℃|0℃|23℃|40℃|50℃|60℃|70℃|85℃|
|SMD1812B150TF/16|2.04|1.88|1.68|1.50|1.25|1.10|1.00|0.80|0.60|
|SMD1812B150TF/24|2.05|1.87|1.67|1.50|1.25|1.08|0.95|0.77|0.60|
|SMD1812B160TF/8(4L)|2.20|2.06|1.91|1.60|1.36|1.17|1.09|0.85|0.72|
|SMD1812B160TF/16|2.20|2.06|1.91|1.60|1.36|1.17|1.09|0.85|0.72|
|SMD1812B200TFT|2.60|2.44|2.22|2.00|1.78|1.67|1.50|1.45|1.29|
|SMD1812B200TF/12|2.60|2.44|2.22|2.00|1.78|1.67|1.50|1.45|1.29|
|SMD1812B200TF/16|2.60|2.44|2.22|2.00|1.78|1.67|1.50|1.45|1.29|
|SMD1812B260TFT|3.40|3.16|3.00|2.60|2.30|2.15|2.00|1.85|1.63|
|SMD1812B260TF/12|3.40|3.16|3.00|2.60|2.30|2.15|2.00|1.85|1.63|
|SMD1812B260TF/16|3.40|3.16|3.00|2.60|2.30|2.15|2.00|1.85|1.63|
|SMD1812B300TFT|4.13|3.75|3.30|3.00|2.62|2.43|2.25|2.00|1.78|



## **Average Time-Current Curve** 

**==> picture [261 x 244] intentionally omitted <==**

**----- Start of picture text -----**<br>
AB CD E FG<br>100<br>10<br>1<br>0.1<br>0.01<br>1 10 100<br>Fault Current (A)<br>Time to Trip (s)<br>**----- End of picture text -----**<br>


- A-SMD1812B110TF B-SMD1812B125TF/6,4L C-SMD1812B150TF/8 D-SMD1812B160TF/8(4L) SMD1812B160TF/16 E-SMD1812B200TFT SMD1812B200TF/12 SMD1812B200TF/16 F-SMD1812B260TFT SMD1812B260TF/12 SMD1812B260TF/16 G-SMD1812B300TFT 

www.yageo.com 

Nov. 05, 2018 V.0 

Circuit Protection 

> Product Specification 7 12 

POSITIVE TEMPERATURE COEFFICIENT 

SMD1812 

**==> picture [400 x 245] intentionally omitted <==**

**----- Start of picture text -----**<br>
AB CD E<br>100<br>A-SMD1812B050TF<br>B-SMD1812B075TF<br>10 C-SMD1812B110TF/16<br>D-SMD1812B125TF/16<br>E-SMD1812B150TF/12<br>1     SMD1812B150TF/16<br>0.1<br>0.01<br>0.1 1 10 100<br>Fault Current (A)<br>Time to Trip (s)<br>**----- End of picture text -----**<br>


## **Average Time-Current Curve** 

**==> picture [400 x 245] intentionally omitted <==**

**----- Start of picture text -----**<br>
A BC D E FGHI<br>100<br>A-SMD1812B010TF<br>B-SMD1812B014TF<br>C-SMD1812B020TF<br>10<br>    SMD1812B020TF-J<br>D-SMD1812B035TF/30<br>E-SMD1812B050TF/30<br>1<br>F-SMD1812B075TF/33<br>G-SMD1812B075TF/24<br>H-SMD1812B110TF/24<br>0.1 I-SMD1812B150TF/24<br>0.01<br>0.1 1 10 100<br>Fault Current (A)<br>Time to Trip (s)<br>**----- End of picture text -----**<br>


www.yageo.com 

Nov. 05, 2018 V.0 

Circuit Protection 

> Product Specification 8 12 

POSITIVE TEMPERATURE COEFFICIENT 

SMD1812 

## **Soldering Parameters** 

|TP<br>TL<br>25<br>Temperature||||||||tP|tP|tP|tP|
|---|---|---|---|---|---|---|---|---|---|---|---|
||TS max||||Ramp-up|||Ramp<br>tL||||
|||||||Ramp-up||||||
|||||||||||||
|||||||||||||
|||||||||||||
||TS min|||||||||||
||||||||||Ramp||-down|
||||tS<br>Preheat|||||||||
|||||||||||||
||||t 25℃to Peak|||||||||
||||||Time|||||||
|||||||||||||
|||||||||||||
||||Profile Feature|||||Pb-Free Assembly||||
|||||||||||||
|Average ramp-up rate (TS maxto TP)||||||||3℃/second max.||||
|Preheat<br>-Temperature Min (TS min)<br>-Temperature Max (TS max)<br>-Time (min to max) (TS minto TS max)||||||||150℃<br>200℃<br>60-180 seconds||||
|Time maintained above:<br>-Temperature (TL)<br>-Time (tL)||||||||217℃<br>60-150 seconds||||
|Peak Temperature (TP)||||||||260℃||||
|Time within 5℃of actual Peak Temperature (tP)||||||||20-40 seconds||||
|Ramp-down Rate||||||||6℃/second max.||||
|Time 25℃to Peak Temperature||||||||8 minutes max.||||
|Storage Condition||||||||0℃~35℃, ≤70%RH||||



- Recommended reflow methods: IR, vapor phase oven, hot air oven, N2 environment for lead-free 

- Recommended maximum paste thickness is 0.25mm (0.010 inch) 

- Device can be cleaned using standard industry methods and solvents. 

- Note 1: All temperature refer to topside of the package, measured on the package body surface. 

Note 2: If reflow temperatures exceed the recommended profile, devices may not meet the performance requirements. 

www.yageo.com 

Nov. 05, 2018 V.0 

> Product Specification 9 ~~]~~ 12 

Circuit Protection 

POSITIVE TEMPERATURE COEFFICIENT 

SMD1812 

## **Physical Dimensions (mm)** 

~~es:~~ A C BK Logo B Part identification **Marking** ~~i~~ D E 

|Part<br>Number|A|A|B|B|C|C|D|D|E|E|
|---|---|---|---|---|---|---|---|---|---|---|
||Min.|Max.|Min.|Max.|Min.|Max.|Min.|Max.|Min.|Max.|
|SMD1812B010TF<br>~~ee~~|4.37<br>~~ee~~|4.73<br>~~ee~~|3.07<br>~~ee~~|3.41<br>~~ee~~|0.75<br>~~ee~~|1.25<br>~~ee~~|0.30<br>~~ee~~|1.20<br>~~ee~~|0.15<br>~~ee~~|0.65<br>~~ee~~|
|SMD1812B014TF<br>~~ee~~|4.37<br>~~ee~~|4.73<br>~~ee~~|3.07<br>~~ee~~|3.41<br>~~ee~~|0.75<br>~~ee~~|1.95<br>~~ee~~|0.30<br>~~ee~~|1.20<br>~~ee~~|0.15<br>~~ee~~|0.65<br>~~ee~~|
|SMD1812B020TF<br>~~a~~|4.37<br>~~a~~|4.73<br>~~ee~~|3.07<br>~~ee~~|3.41<br>~~ee~~|0.55<br>~~ee~~|1.25<br>~~ee~~|0.30<br>~~ee~~|1.20|0.15|0.65|
|SMD1812B020TF-J<br>~~a ~~|4.37<br> ~~a~~|4.73<br>~~ee ~~|3.07<br> ~~ee~~|3.41<br>~~ee ~~|0.55<br> ~~ee~~|1.25<br>~~ee~~|0.30<br>~~ee~~|1.20|0.15|0.65|
|SMD1812B035TF/30<br>~~a~~|4.37<br>~~a~~|4.73<br>~~ee~~|3.07<br>~~ee~~|3.41<br>~~ee~~|0.55<br>~~ee~~|1.25<br>~~ee~~|0.30<br>~~ee~~|1.20|0.15|0.65|
|SMD1812B050TF<br>~~a ~~|4.37<br> ~~a~~|4.73<br>~~ee ~~|3.07<br> ~~ee~~|3.41<br>~~ee ~~|0.50<br> ~~ee~~|1.25<br>~~ee~~|0.30<br>~~ee~~|1.20|0.15|0.50|
|SMD1812B050TF/30<br>~~a~~|4.37<br>~~i~~|4.73<br>~~ee~~|3.07<br>~~ee~~|3.41<br>~~ee~~|0.50<br>~~ee~~|2.10<br>~~ee~~|0.30<br>~~ee~~|1.20|0.15|0.65|
|SMD1812B075TF<br>~~a ~~|4.37<br> ~~i ~~|4.73<br> ~~ee~~|3.07<br>~~ee~~|3.41<br>~~ee~~|0.50<br>~~ee ~~|1.55<br> ~~ee ~~|0.30<br> ~~ee~~|1.20|0.15|0.50|
|SMD1812B075TF/24<br>~~a~~|4.37<br>~~ae~~|4.73<br>~~ee~~|3.07<br>~~ee~~|3.41<br>~~ee~~|0.50<br>~~ee~~|1.55<br>~~ee~~|0.30<br>~~ee~~|1.20|0.15|0.65|
|SMD1812B075TF/33<br>~~a ~~|4.37<br> ~~ae ~~|4.73<br> ~~ee ~~|3.07<br> ~~ee ~~|3.41<br> ~~ee ~~|0.75<br> ~~ee ~~|1.55<br> ~~ee~~|0.30<br>~~ee~~|1.20|0.15|0.65|
|SMD1812B110TF<br>~~a~~|4.37<br>~~ee~~|4.73<br>~~ee~~|3.07<br>~~ee~~|3.41<br>~~ee~~|0.30<br>~~ee~~|2.00<br>~~ee~~|0.30<br>~~ee~~|1.20|0.15|0.65|
|SMD1812B110TF/16<br>~~a ~~|4.37<br> ~~ee ~~|4.73<br> ~~ee ~~|3.07<br> ~~ee ~~|3.41<br> ~~ee ~~|0.30<br> ~~ee ~~|2.00<br> ~~ee~~|0.30<br>~~ee~~|1.20|0.15|0.65|
|SMD1812B110TF/24<br>~~ee~~|4.37<br>~~ee~~|4.73<br>~~ee~~|3.07<br>~~ee~~<br>~~ee~~|3.41<br>~~ee~~<br>~~ee~~|0.30<br>~~ee~~<br>~~ee~~|2.00<br>~~ee~~<br>~~ee~~|0.30<br>~~ee~~<br>~~ee~~|1.20<br>~~ee~~<br>~~eee~~|0.15<br>~~ee~~<br>~~eee~~|0.65<br>~~ee~~<br>~~eee~~|
|SMD1812B110TF/33|4.37|4.73|3.07<br>~~ee~~<br>~~ee~~|3.41<br>~~ee ~~<br>~~ee~~|0.75<br> ~~ee ~~<br>~~ee~~|2.00<br> ~~ee ~~<br>~~ee~~|0.30<br> ~~ee ~~<br>~~ee~~|1.20<br> ~~eee~~<br>~~ee~~|0.15<br>~~eee~~<br>~~eee~~|0.65<br>~~eee~~<br>~~eee~~|
|SMD1812B125TF/16<br>~~Se~~|4.37<br>~~Se~~|4.73<br>~~Se~~|3.07<br>~~Se~~<br>~~ee~~|3.41<br>~~Se~~<br>~~ee~~|0.45<br>~~Se~~<br>~~ee~~|1.50<br>~~Se~~<br>~~ee~~|0.30<br>~~Se~~<br>~~ee~~|1.20<br>~~Se~~<br>~~ee~~|0.15<br>~~Se~~<br>~~eee~~|0.65<br>~~Se~~<br>~~eee~~|
|SMD1812B125TF/6,4L|4.37|4.73|3.07<br>~~ee ~~<br>~~ee~~|3.41<br> ~~ee ~~<br>~~ee~~|0.45<br> ~~ee ~~<br>~~ee~~|1.50<br> ~~ee ~~<br>~~ee~~|0.30<br> ~~ee ~~<br>~~ee~~|1.20<br> ~~ee ~~<br>~~ee~~|0.15<br> ~~eee~~<br>~~eee~~|0.65<br>~~eee~~<br>~~eee~~|
|SMD1812B150TF/8<br>~~Se~~|4.37<br>~~Se~~|4.73<br>~~Se~~|3.07<br>~~Se~~<br>~~ee~~|3.41<br>~~Se~~<br>~~ee~~|0.40<br>~~Se~~<br>~~ee~~|0.90<br>~~Se~~<br>~~ee~~|0.30<br>~~Se~~<br>~~ee~~|1.20<br>~~Se~~<br>~~ee~~|0.15<br>~~Se~~<br>~~eee~~|0.65<br>~~Se~~<br>~~eee~~|
|SMD1812B150TF/12<br>~~Sy~~|4.37<br>~~a~~|4.73<br>~~ee~~|3.07<br>~~ee ~~<br>~~ee~~|3.41<br> ~~ee ~~<br>~~ee~~|0.40<br> ~~ee ~~<br>~~ee~~|1.80<br> ~~ee ~~<br>~~ee~~|0.30<br> ~~ee ~~<br>~~ee~~|1.20<br> ~~ee ~~<br>~~ee~~|0.15<br> ~~eee~~<br>~~ee~~|0.65<br>~~eee~~<br>~~ee~~|
|SMD1812B150TF/16<br>~~Sy~~|4.37<br>~~a~~|4.73<br>~~ee~~|3.07<br>~~ee~~|3.41<br>~~ee~~|0.40<br>~~ee~~|1.80<br>~~ee~~|0.30<br>~~ee~~|1.20<br>~~ee~~|0.15<br>~~ee~~|0.65<br>~~ee~~|
|SMD1812B150TF/24<br>~~Sy ~~<br>~~ee~~|4.37<br> ~~a ~~<br>~~ee~~|4.73<br> ~~ee~~<br>~~ee~~|3.07<br>~~ee ~~<br>~~ee~~|3.41<br> ~~ee ~~<br>~~ee~~|0.80<br> ~~ee~~<br>~~ee~~|2.10<br>~~ee~~<br>~~ee~~|0.30<br>~~ee ~~<br>~~ee~~|1.20<br> ~~ee ~~<br>~~ee~~|0.15<br> ~~ee ~~<br>~~ee~~|0.65<br> ~~ee~~<br>~~ee~~|
|SMD1812B160TF/8(4L)<br>~~ee~~|4.37<br>~~ee~~|4.73<br>~~ee~~|3.07<br>~~ee~~|3.41<br>~~ee~~|0.40<br>~~ee~~|1.80<br>~~ee~~|0.30<br>~~ee~~|1.20<br>~~ee~~|0.15<br>~~ee~~|0.65<br>~~ee~~|
|SMD1812B160TF/16<br>~~ee ~~<br>~~a~~|4.37<br> ~~ee ~~<br>~~es~~|4.73<br> ~~ee ~~<br>~~ee~~|3.07<br> ~~ee ~~<br>~~ee~~|3.41<br> ~~ee ~~<br>~~ee~~|0.75<br> ~~ee~~<br>~~ee~~|1.80<br>~~ee ~~|0.30<br> ~~ee~~|1.20<br>~~ee~~|0.15<br>~~ee~~|0.65<br>~~ee~~|
|SMD1812B200TFT<br>~~a~~|4.37<br>~~es~~|4.73<br>~~ee~~|3.07<br>~~ee~~|3.41<br>~~ee~~|0.20<br>~~ee~~|1.25|0.30|1.20|0.15|0.65|
|SMD1812B200TF/12<br>~~a~~<br>~~a~~|4.37<br>~~es ~~<br>~~es~~|4.73<br> ~~ee~~<br>~~ee~~|3.07<br>~~ee ~~<br>~~ee~~|3.41<br> ~~ee~~<br>~~ee~~|0.80<br>~~ee~~<br>~~ee~~|1.80|0.30|1.20|0.15|0.65|
|SMD1812B200TF/16<br>~~a~~|4.37<br>~~es~~|4.73<br>~~ee~~|3.07<br>~~ee~~|3.41<br>~~ee~~|0.80<br>~~ee~~|2.00|0.30|1.20|0.15|0.65|
|SMD1812B260TFT<br>~~a~~<br>~~a~~|4.37<br>~~es ~~<br>~~es~~|4.73<br> ~~ee~~<br>~~ee~~|3.07<br>~~ee ~~<br>~~ee~~|3.41<br> ~~ee~~<br>~~ee~~|0.20<br>~~ee~~<br>~~ee~~|1.80|0.30|1.20|0.15|0.65|
|SMD1812B260TF/12<br>~~a~~|4.37<br>~~es~~|4.73<br>~~ee~~|3.07<br>~~ee~~|3.41<br>~~ee~~|0.80<br>~~ee~~|1.80|0.30|1.20|0.15|0.65|
|SMD1812B260TF/16<br>~~a~~|4.37<br>~~es ~~|4.73<br> ~~ee~~<br>~~ee~~|3.07<br>~~ee ~~<br>~~ee~~|3.41<br> ~~ee~~|0.80<br>~~ee~~<br>~~De~~|2.10<br>~~De~~|0.30<br>~~De~~|1.20|0.15|0.65|
|SMD1812B300TFT<br>~~ee~~|4.37<br>~~ee~~|4.73<br>~~ee~~<br>~~ee~~|3.07<br>~~ee~~<br>~~ee~~|3.41<br>~~ee~~|0.50<br>~~ee~~<br>~~De~~|1.60<br>~~ee~~<br>~~De~~|0.30<br>~~ee~~<br>~~De~~|1.20<br>~~ee~~|0.15<br>~~ee~~|0.65<br>~~ee~~|



OOOO Nov. 05, 2018 V.0 

www.yageo.com 

Circuit Protection 

> Product Specification 10 12 

POSITIVE TEMPERATURE COEFFICIENT 

SMD1812 

## **Environmental Specifications** 

|Operating / Storage temperature|-40℃to +85℃|
|---|---|
|Maximum Device Surface Temperature in Tripped State|125℃|
|Passive Aging|+85℃, 1000 hours<br>±50% typical resistance change|
|Humidity Aging|+85℃, 85%R.H. 1000 hours<br>±50% typical resistance change|
|Thermal Shock|MIL-STD-202, Method 107G<br>+85℃/-40℃20 times<br>-50% typical resistance change|
|Solvent Resistance|MIL-STD-202, Method 215<br>No change|
|Vibration|MIL-STD-883C, Method 2007.1, Condition A<br>No change|
|Moisture Level Sensitivity|Level 1, J-STD-020C|



## **Packaging Quantity and Marking** 

Recommended Pad Layout (mm) 

**==> picture [108 x 79] intentionally omitted <==**

**----- Start of picture text -----**<br>
3.45typ.<br>1.78typ. 1.78typ.<br>3.15typ.<br>**----- End of picture text -----**<br>


||||
|---|---|---|
|Part Number|Marking|Quantity|
||||
|SMD1812B010TF|010|1500|
||||
|SMD1812B014TF|014|1500|
||||
|SMD1812B020TF|020|1500|
||||
|SMD1812B020TF-J|020.J|1500|
||||
|SMD1812B035TF/30|0330|2000|
||||
|SMD1812B050TF|050|2000|
||||
|SMD1812B050TF/30|0530|1000|
||||
|SMD1812B075TF|075|2000|
||||
|SMD1812B075TF/24|0724|1500|
||||
|SMD1812B075TF/33|0733|1000|
||||



www.yageo.com 

Nov. 05, 2018 V.0 

Circuit Protection 

> Product Specification 11 12 

POSITIVE TEMPERATURE COEFFICIENT 

SMD1812 

## **Packaging Quantity and Marking** 

Recommended Pad Layout (mm) 

**==> picture [108 x 79] intentionally omitted <==**

**----- Start of picture text -----**<br>
3.45typ.<br>1.78typ. 1.78typ.<br>3.15typ.<br>**----- End of picture text -----**<br>


||||
|---|---|---|
|Part Number|Marking|Quantity|
||||
|SMD1812B110TF|110|2000|
||||
|SMD1812B110TF/16|1116|1500|
||||
|SMD1812B110TF/24|1124|1000|
||||
|SMD1812B110TF/33|1133|1000|
||||
||||
|SMD1812B125TF/16|125|1500|
||||
||||
|SMD1812B125TF/6,4L|125|2000|
||||
||||
|SMD1812B150TF/8|150|2000|
||||
||||
|SMD1812B150TF/12|1512|1500|
||||
||||
|SMD1812B150TF/16|1516|1000|
||||
||||
|SMD1812B150TF/24|1524|1000|
||||
||||
|SMD1812B160TF/8(4L)|160|2000|
||||
||||
|SMD1812B160TF/16|1616|1000|
||||
||||
|SMD1812B200TFT|20|2000|
||||
||||
|SMD1812B200TF/12|2012|1000|
||||
||||
|SMD1812B200TF/16|2016|1000|
||||
||||
|SMD1812B260TFT|260|2000|
||||
||||
|SMD1812B260TF/12|2612|1000|
||||
||||
|SMD1812B260TF/16|2616|1000|
||||
||||
|SMD1812B300TFT|30|1000|
||||



◎ 12mm tape on 7 inch reel per EIA-481 (equivalent to IEC286, part 3) 

## **Physical Specifications** 

|Terminal Material|Solder-Plated Copper (Solder Material: Matte Tin (Sn))|
|---|---|
|Lead Solderability|Meets EIA Specification RS186-9E, ANSI/J-STD-002 Category 3.|



www.yageo.com 

Nov. 05, 2018 V.0 

Circuit Protection POSITIVE TEMPERATURE COEFFICIENT 

> Product Specification 12 12 

SMD1812 

## **Packaging** 

|Tape<br>P0<br>P2<br>P1<br>D0<br>D1<br>E<br>F<br>W<br>K0<br>A0<br>B0<br>T<br>~~SOO~~ ~~A~~<br>~~a~~<br>~~PA)~~,<br>~~°)~~<br>~~Beet)~~<br>~~Jy ff~~<br>~~a~~|Symbol|Dimensions (mm)|Dimensions (mm)|Dimensions (mm)|
|---|---|---|---|---|
|||B035TF/30<br>B050TF<br>B075TF<br>B110TF<br>B125TF/6,4L<br>B150TF/8<br>B160TF/8(4L)<br>B200TFT,<br>B260TFT|B010TF<br>B014TF<br>B020TF<br>B020TF-J<br>B075TF/24<br>B110TF/16<br>B125TF/16<br>B150TF/12|B050TF/30，B075TF/33<br>B110TF/24，B110TF/33<br>B150TF/16，B150TF/24<br>B160TF/16<br>B200TF/12，B200TF/16<br>B200TF/12，B200TF/16<br>B260TF/12，B260TF/16<br>B300TFT|
||W|12.00±0.30|12.00±0.30|12.00±0.10|
||F|5.50±0.05|5.50±0.05|5.50±0.05|
||E<br>~~pee~~|1.75±0.10<br>~~pee~~|1.75±0.10<br>~~pee~~|1.75±0.10<br>~~pee~~|
||D0<br>~~pee~~|1.55±0.05<br>~~pee~~|1.55±0.05<br>~~pee~~|1.55±0.05<br>~~pee~~|
||D1<br>~~pee~~|1.55(MIN)<br>~~pee~~|1.50±0.10<br>~~pee~~|1.55(MIN)<br>~~pee~~|
||P0<br>~~pee~~<br>~~ff~~<br>~~———~~|4.00±0.10<br>~~pee~~<br>~~ff~~<br>~~———~~|4.00±0.10<br>~~pee~~<br>~~———~~|4.00±0.10<br>~~pee~~<br>~~———~~|
||P1<br>~~ff~~<br>~~———~~|8.00±0.10<br>~~ff~~<br>~~———~~|8.00±0.10<br>~~———~~|8.00±0.10<br>~~———~~|
||P2<br>~~ff~~<br>~~———~~<br>~~ee~~|2.00±0.05<br>~~ff~~<br>~~———~~<br>~~ee~~|2.00±0.05<br>~~———~~<br>~~ee~~|2.00±0.05<br>~~———~~<br>~~ee~~|
||A0<br>~~ee~~|3.58±0.10<br>~~ee~~|3.50±0.10<br>~~ee~~|3.58±0.10<br>~~ee~~|
||B0<br>~~ee~~<br>~~i~~|4.93±0.10<br>~~ee~~<br>~~i~~|4.85±0.10<br>~~ee~~<br>~~i~~|4.93±0.10<br>~~ee~~<br>~~i~~|
||T<br>~~i~~|0.25±0.10<br>~~i~~|0.25±0.10<br>~~i~~|0.25±0.10<br>~~i~~|
||K0<br>~~i~~|0.87±0.10<br>~~i~~|1.25±0.10<br>~~i~~|2.10±0.10<br>~~i~~|
||Leader min.<br>~~———~~|390<br>~~———~~|390<br>~~———~~|390<br>~~———~~|
||Trailer min.<br>~~———~~|160<br>~~———~~|160<br>~~———~~|160<br>~~———~~|
|Reel<br>.<br>)|C<br>~~———~~<br>~~ep~~|Φ178.0±1.0<br>~~———~~<br>~~ep~~|||
||D<br>~~ep~~<br>~~pp~~|Φ60.2±0.5<br>~~ep~~<br>~~pp~~|||
||H<br>~~{~~|16.0±0.5<br>~~{~~|||
||W|13.2±1.5|||



## **Part Number System** 

SMD  1812  B TF  T / 

Special Voltage Rating (Optional) Thickness Version (Optional) Lead-Free Holding Current Rating Delimiter Device Dimensions: Length/Width (Unit: 1/100 inch) Surface Mount Device 

www.yageo.com 

Nov. 05, 2018 V.0

Updated at April 29, 2026

Founded in 1977, Yageo Corporation is a premier global provider of passive component solutions. Through strategic acquisitions of industry leaders such as Pulse Electronics, BrightKing, and KEMET, the company has built a comprehensive product portfolio and established a commanding presence across the electronics industry, particularly in capacitors, resistors, and circuit protection technologies. Our extensive range of Yageo components is heavily focused on their advanced circuit protection solutions. We carry a comprehensive selection of transient voltage suppression (TVS) devices, featuring hundreds of TVS diodes and varistors engineered to safeguard sensitive electronics from destructive voltage transients. This core offering is complemented by a robust lineup of gas discharge tubes (GDTs) designed for reliable overvoltage protection in demanding environments. Beyond voltage suppression, we supply a variety of Yageo's specialized thermistor products, including resettable fuses, inrush current limiting (ICL) NTC thermistors, and precision temperature sensing components. Rounding out our selection are high-performance Yageo RF and single-band chip antennas, providing reliable, space-efficient connectivity for modern wireless applications.

About Novapart

Novapart is a B2B electronic component broker specialising in stock shortages and cost reduction. We source hard-to-find parts and identify compliant alternatives across a catalogue of 410,000+ components from 500+ manufacturers.

Learn more →

Stock Shortage Specialist

When a component is unavailable, discontinued or has an unacceptable lead time, we tap into our network of vetted European and Asian distributors to source what you need — without compromising on quality or traceability.

Request a quote →

Compliant Alternatives

We identify pin-to-pin, electrically equivalent substitutes that meet the same certifications (RoHS, AEC-Q100, REACH) as your original specification — validated against datasheets, not just part numbers. Often at a lower cost.

BOM Analysis service →