MF-SMHT160-2

Resettable Fuse, PPTC, 2920 (7351 Metric), MF-SMHT, 16 VDC, 1.6 A, 3.2 A, 10 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: BOURNS
Product type: Surface Mount PPTCs

Delivery and price
Units per pack	15000
Price	0.298 €
Current stock	10+
Lead time	30 days

Datasheet

## **Features** 

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|||||||||||
|---|---|---|---|---|---|---|---|---|---|
|n|Compliant with AEC-Q200 Rev-C Stress|n|RoHS compliant*|
|Test Qualification for Passive Components|
|in Automotive Applications|
|n|Operating temperature range up to 125 °C|
|n|Low thermal derating factor|
|n|Higher hold currents at elevated|
|temperature|
|n|Choice of operating currents|
|MF-SMHT Series - PTC Resettable Fuses|
|BOURNS|---______|
|Electrical Characteristics|
|Max. Time|Tripped|
|V max.|I max.|Ihold|Itrip|Resistance|To Trip|DissPower ipation|
|Model|
|Volts|Amps|Amperes|Ohms|Amperes|Seconds|Watts|
|at 23 °C|at 23 °C|at 23 °C|at 23 °C|at 23 °C|
|Hold|Trip|RMin.|R1Max.|Typ.|
|MF-SMHT136|16|100|1.36|2.72|0.085|0.33|8.0|10.0|2.1|
|MF-SMHT160|16|100|1.60|3.20|0.050|0.15|8.0|10.0|2.1|

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## ~~**Environmental Characteristics**~~ 

Operating Temperature ......................................... -40 °C to +125 °C Storage Temperature ............................................ -40 °C to +85 °C Passive Aging ....................................................... +125 °C, 1000 hours ............................................. ±15 % typical resistance change Humidity Aging...................................................... +85 °C, 85 % R.H. 1000 hours ............................. ±15 % typical resistance change Thermal Shock ..................................................... MIL-STD-202F, Method 107G, .............................. ±15 % typical resistance change +125 °C to -40 °C,10 cycles Vibration ............................................................... MIL-STD-883C, Method 2007.1, Condition A ....... No change 

## ~~**Test Procedures And Requirements For Model MF-SMHT Series**~~ 

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||||
|---|---|---|
|Test|Test Conditions|Accept/Reject Criteria|
|Visual/Mech. ......................................................... Verify dimensions and materials ........................... Per MF physical description|
|Resistance ............................................................ In still air @ 23 °C ................................................. Rmin ≤ R ≤ R1max|
|Time to Trip ........................................................... At specified current, Vmax, 23 °C ......................... T ≤ max. time to trip (seconds)|
|Hold Current ......................................................... 30 min. at Ihold ..................................................... No trip|
|Trip Cycle Life ....................................................... Vmax, Imax, 100 cycles ........................................ No arcing or burning|
|Trip Endurance ..................................................... Vmax, 48 hours ..................................................... No arcing or burning|
|Solderability .......................................................... MIL-STD-202F, Method 208F ............................... 95 % min. coverage|

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## ~~**Thermal Derating Chart - Ihold/Itrip (Amps)**~~ 

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|---|---|---|---|---|---|---|---|---|---|---|
|Ambient|Operating Temperature|
|Model|
|-40 °C|-20 °C|0 °C|23 °C|40 °C|50 °C|60 °C|70 °C|85 °C|125 °C|
|MF-SMHT136|1.91 / 3.82|1.72 / 3.44|1.54 / 3.08|1.36 / 2.72|1.18 / 2.36|1.09 / 2.18|1.00 / 2.00|0.91 / 1.82|0.77 / 1.54|0.40 / 0.80|
|MF-SMHT160|2.15 / 4.30|1.96 / 3.92|1.78 / 3.56|1.60 / 3.20|1.42 / 2.48|1.33 / 2.66|1.24 / 2.48|1.15 / 3.30|1.02 / 2.04|0.64 / 1.28|

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Tel: +886-2 2562-4117 • Email: asiacus@bourns.com **Asia-Pacific: EMEA:** Tel: +36 88 520 390 • Email: eurocus@bourns.com **The Americas:** Tel: +1-951 781-5500 • Email: americus@bourns.com **www.bourns.com** 

*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011. Specifications are subject to change without notice. 

The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. Users should verify actual device performance in their specific applications. 

## **Applications** 

n Protection of automotive circuitry including engine control modules 

n Overcurrent surge protection of electronic equipment required to operate at high 

- operating temperature ranges 

n Resettable fault protection of general electronic equipment 

## **MF-SMHT Series - PTC Resettable Fuses** 

## ~~**Product Dimensions**~~ 

|**Model**|**A**||**B**|**C**|**D**|**D**|**E**||**F**|**F**|**G**|**G**|**H**|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
||Min.|Max.|Max.|Max.|Min.|Max.|Min.|Max|Min.|Max.|Min.|Max.|Min.|
|MF-SMHT136|6.73<br>(0.265)<br>(|7.98|3.00<br>(0.118)|5.44<br>(0.214)|0.56<br>(0.022)|0.71<br>(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>(0.026)|1.37<br>(0.054)|0.43<br>(0.017)|
|||0.314)||||||||||||
|MF-SMHT160|8.00<br>(0.315)<br>(|9.50<br>0.374)|3.00<br>(0.118)|6.71<br>(0.264)|0.56<br>(0.022)|0.71<br>(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>(0.026)|1.37<br>(0.054)|0.43<br>(0.017)|
|Packaging:<br>TAPE & REEL:  MF-SMHT136 = 2000 pcs. per reel; MF-SMHT160 = 1500 pcs. per reel.<br>A<br>D<br>H<br>E<br>_Side View_<br>B<br>F<br>C<br>_End View_<br>G<br>Terminal material:<br>Tin-plated brass<br>2.3 ± 0.1<br>(0.09 ± 0.004)<br>9.7 ± 0.1<br>(0.38 ± 0.004)<br>3.1 ± 0.1<br>(0.12 ± 0.004)<br>3.1 ± 0.1<br>(0.12 ± 0.004)<br>**_Recommended Pad Layout_**<br>**_MF-SMHT136_**<br>10.7 ± 0.1<br>(0.42 ± 0.004)<br>4.6 ± 0.1<br>(0.18 ± 0.004)<br>2.3 ± 0.1<br>(0.09 ± 0.004)<br>4.6 ± 0.1<br>(0.18 ± 0.004)<br>**_Recommended Pad Layout_**<br>**_MF-SMHT160_**|||||||||DIMENSIONS:<br>MM<br>(INCHES)<br>~~**How to Order**~~<br>**MF - SMHT 136 - 2**<br>Multifuse®Product<br>Designator<br>Series<br>SMHT = Surface Mount Component<br>Hold Current, Ihold<br>136 - 160 (1.36 - 1.60 Amps)<br>Packaging Options<br>- 2 = Tape and Reel*<br>*Packaged per EIA-481-2<br>~~**Typical Part Marking**~~<br> Represents total content. Layout may vary.<br>MANUFACTURER'S<br>TRADEMARK<br>PART<br>IDENTIFICATION<br>**136**<br>**4A**<br>DATE CODE -<br>WEEK 1 OF 2004 = 4A<br>(YEAR & WEEK)<br>WEEK 27 OF 2004 = A4<br>(WEEK & YEAR)||DIMENSIONS:<br>||MM<br>(INCHES)|



Packaging: 

TAPE & REEL:  MF-SMHT136 = 2000 pcs. per reel; MF-SMHT160 = 1500 pcs. per reel. 

**MF - SMHT 136 - 2** Multifuse[®] Product Designator Series SMHT = Surface Mount Component Hold Current, Ihold 136 - 160 (1.36 - 1.60 Amps) Packaging Options - 2 = Tape and Reel* 

Specifications are subject to change without notice. The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. Users should verify actual device performance in their specific applications. 

## **MF-SMHT Series - PTC Resettable Fuses** 

## ~~**Typical Time to Trip at 23 °C**~~ 

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10<br>MF-SMHT160<br>MF-SMHT136<br>1<br>0.1<br>0.01<br>0.001<br>1 10 100<br>Fault Current  (Amps)<br>Time to Trip (Seconds)<br>**----- End of picture text -----**<br>


The Time to Trip curves represent typical performance of a device in a simulated application environment. Actual performance in specific customer applications may differ from these values due to the influence of other variables. 

## ~~**Solder Refow Recommendations**~~ 

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300 Preheating Soldering Cooling<br>250<br>200<br>150<br>100<br>50<br>0<br>160–220 10–20 120<br>Time (seconds)<br>Temperature (°C)<br>**----- End of picture text -----**<br>


## **Solder reflow** 

- Recommended reflow methods: IR, vapor phase oven, hot air oven. 

- Devices are not designed to be wave soldered to the bottom side of the board. 

- Gluing the devices is not recommended. 

- Recommended maximum paste thickness is 0.25  mm (.010 inch). 

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

## **Note:** 

- If reflow temperatures exceed the recommended profile, devices may not meet the performance requirements. 

- **Rework** 

- A device should not be reworked. 

MF-SMHT SERIES, REV. G, 08/16 

Specifications are subject to change without notice. The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. Users should verify actual device performance in their specific applications. 

## **MF-SMHT Series Tape and Reel Specifications** 

_NOTE: Effective December 1, 2010 (product date code V0), the cover tape w as changed to the new 3M[™] Universal Cover Tape (UCT)._ 

|**Tape Dimensions**|**Tape Dimensions**|||||||||||||**MF-SMHT136**<br>**per EIA-481-2 **|**MF-SMHT136**<br>**per EIA-481-2 **|**MF-SMHT136**<br>**per EIA-481-2 **||**MF-SMHT160**<br>**per EIA 481-2**|**MF-SMHT160**<br>**per EIA 481-2**|**MF-SMHT160**<br>**per EIA 481-2**||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|W||||||||||||||16.0 ± 0.3<br>(0.630 ± 0.012)||||16.0 ± 0.3<br>(0.630 ± 0.012)||||
|P0||||||||||||||4.0 ± 0.1<br>(0.157 ± 0.004)||||4.0 ± 0.1<br>(0.157 ± 0.004)||||
|P1||||||||||||||8.0 ± 0.1<br>(0.315 ± 0.004)||||12.0 ± 0.1<br>(0.472 ± 0.004)||||
|P2||||||||||||||2.0 ± 0.1<br>(0.079 ± 0.004)||||2.0 ± 0.1<br>(0.079 ± 0.004)||||
|A0||||||||||||||5.7 ± 0.1<br>(0.224 ± 0.004)||||6.9 ± 0.1<br>(0.272 ± 0.004)||||
|B0||||||||||||||8.1 ± 0.1<br>(0.319 ± 0.004)||||9.6 ± 0.1<br>(0.378 ± 0.004)||||
|B1 max.||||||||||||||||12.1<br>(0.476)||12.1<br>(0.476)||||
|D0|||||||||||||1.5 + 0.1/-0.0<br>(0.059 + 0.004/-0)|||||1.5 + 0.1/-0.0<br>(0.059 + 0.004/-0)||||
|F||||||||||||||7.5 ± 0.1<br>(0.295 + 0.004)||||7.5 ± 0.1<br>(0.295 + 0.004)||||
|E1||||||||||||||1.75 ± 0.1<br>(0.069 ± 0.004)||||1.75 ± 0.1<br>(0.069 ± 0.004)||||
|E2 min.||||||||||||||||14.25<br>(0.561)||14.25<br>(0.561)||||
|T max.||||||||||||||||0.6<br>(0.024)||0.6<br>(0.024)||||
|T1 max.||||||||||||||||0.1<br>(0.004)||0.1<br>(0.004)||||
|K0||||||||||||||3||||3.4 ± 0.1<br>(0.134 ± 0.004)||||
|Leader min.||||||||||||||||390<br>(15.35)||390<br>(15.35)||||
|Trailer min.||||||||||||||||160<br>(6.30)||160<br>(6.30)||||
|**Reel Dimensions**||||||||||||||||||||||
|A max.||||||||||||||||360<br>(14.17)||360<br>(14.17)||||
|N min.||||||||||||||||50<br>(1.97)||50<br>(1.97)||||
|W1|||||||||||||16.4 + 2.0/-0.0<br>(0.646 + 0.079/-0)|||||16.4 + 2.0/-0.0<br>(0.646 + 0.079/-0)||||
|W2 max.||||||||||||||||22.4<br>(0.882)||22.4<br>(0.882)||||
|B1<br>T<br>COVER<br>TAPE<br>K0<br>T1<br>D0||||||||||||||||||N(HUB DIA.)<br>(MEASURED<br>AT HUB)<br>W2<br>(MEASURED<br>AT HUB)<br>W1<br>DIMENSIONS:<br>MM<br>(INCHES)|||MM|
||||||P2<br>P0|||||||||||E1||||||
||||||||||||||||||A|||W2||
|||||||||||||||||||||||
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|||||||||||||||||||||N<br>W1||
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|||||||||||||||||||||||
|||A0||P1||||||||||||||||||
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Specifications are subject to change without notice. 

The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. Users should verify actual device performance in their specific applications.

Updated at February 9, 2023

Bourns, Inc. is a globally recognized manufacturer of high-reliability electronic components, headquartered in Riverside, California. Renowned for its engineering excellence, the company delivers critical solutions across a diverse range of demanding markets, including automotive, industrial, consumer electronics, telecommunications, and medical equipment. The Bourns product portfolio is anchored by an industry-leading selection of passive components and circuit protection devices. The brand is particularly dominant in magnetic components, offering thousands of high-performance power inductors, alongside specialized RF and toroidal inductors engineered for optimized power management and signal integrity. Equally prominent is their comprehensive suite of circuit protection solutions. This robust lineup features a vast array of standard and resettable fuses, transient voltage suppressors (including TVS varistors and diodes), and gas discharge tubes (GDTs) designed to rigorously safeguard sensitive electronics against overvoltage and overcurrent faults. Beyond its core passives and protection technologies, Bourns manufactures highly effective EMC and RFI suppression components, such as common mode chokes and power line filters. The company's offering also extends into discrete semiconductors and power management, including Schottky diodes, fast recovery rectifiers, bridge rectifiers, and board-level transformers. This expansive breadth of quality components provides design engineers with a trusted foundation for developing resilient, efficient, and long-lasting electronic systems.

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