MF-NSHT035KX-2

Resettable Fuse, PPTC, 1206 (3216 Metric), MF-NSHT, 30 VDC, 350 mA, 1.75 A, 0.1 s

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Manufacturer: BOURNS
Product type: Surface Mount PPTCs
Thermistor Mounting:SMD; Product Range:MF-NSHT Series; Holding Current:350mA; Tripping Current:1.75A; Voltage Rating:30V; Operating Temperature Min:-40°C; Operating Temperature Max:
SVHC: No SVHC (04-Feb-2026)
Time to Trip: 0.1s
Trip Current: 1.75A
Product Range: MF-NSHT
Voltage Rating: 30VDC
Holding Current: 350mA
PPTC Case Style: 1206 (3216 Metric)
Current Rating Max: 20A
Operating Temperature Max: 125°C
Operating Temperature Min: -40°C
Automotive Qualification Standard: AEC-Q200

Delivery and price
Units per pack	3000
Price	0.338 €
Current stock	1000+
Lead time	30 days

Datasheet

## **Features** 

n Compliant with AEC-Q200 Rev-C - Stress Test Qualification for Passive Components in Automotive Applications n Small footprint size (1206) 

- n Operating temperature range up to 125 °C 

- n Low thermal derating factor 

n Higher hold currents at elevated temperatures 

## **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 for general electronic equipment 

n RoHS compliant* 

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

## ~~**Electrical Characteristics**~~ 

**==> picture [493 x 75] intentionally omitted <==**

**----- Start of picture text -----**<br>
|||||||||||
|---|---|---|---|---|---|---|---|---|---|
|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-NSHT016KX|30|20|0.16|0.80|0.7|6.0|8.0|0.1|0.9|
|MF-NSHT035KX|30|20|0.35|1.75|0.4|2.6|8.0|0.1|0.9|

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


**R1Max. measured 24 hours post reflow. 

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

Operating Temperature ......................................... -40 °C to +125 °C Passive Aging ....................................................... +125 °C, 1000 hours ............................................. Rfinal <R1max. Humidity Aging...................................................... +85 °C, 85 % R.H. 1000 hours ............................. Rfinal <R1max. Thermal Shock ..................................................... +125 °C to -40 °C, 20 times .................................. Rfinal <R1max. Solvent Resistance ............................................... MIL-STD-202, Method 215 ................................... No change Vibration ............................................................... MIL-STD-883C, Method 2007.1, ........................... No change Condition A Moisture Sensitivity Level (MSL) .......................... Level 1 ESD Classification - HBM ..................................... Class 6 

## ~~**Test Procedures And Requirements For Model MF-NSHT 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 .......................................................... ANSI/J-STD-002 ................................................... 95 % min. coverage|

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


## ~~**Thermal Derating Chart - Ihold (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-NSHT016KX|0.232|0.210|0.186|0.160|0.141|0.130|0.118|0.107|0.090|0.043|
|MF-NSHT035KX|0.508|0.459|0.406|0.350|0.308|0.284|0.259|0.235|0.196|0.095|

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


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. 

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

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

|**Model**|**Model**|**Model**|||**A**|**A**|||**B**|**B**|**B**|**B**||||**C**|**C**|||**D**|**D**|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
||||||Min.||Max.||Min.||||Max.|||Min.||Max.||Min.||
|MF-NSHT016KX|||||3.00<br>(0.118)|3.40<br>(0.134)|||1.40<br>(0.055)||||1.80<br>(0.071)|||0.40<br>(0.016)||0.85<br>(0.033)||0.25<br>(0.010)||
|MF-NSHT035KX|||||3.00<br>(0.118)|3.40<br>(0.134)|||1.40<br>(0.055)||||1.80<br>(0.071)|||0.40<br>(0.016)||0.85<br>(0.033)||0.25<br>(0.010)||
|Packaging:  3000 pcs.<br>**_Top View_**|||per reel.<br><br><br>**_Bottom View_**<br>**_Side View_**||||||**_Recommended Pad Layout_**|||||1.60±0.10<br>(.063 ± .004)||DIMENSIONS:<br>**Terminal material:**<br>Nickel/gold plated.<br>**Termination pad solderability:**<br>Standard Au fnish:<br>Meets ANSI/J-STD-002 Category<br>**Recommended Storage:**<br>40 °C max/70 % RH max|||||MM|
||||||||||||||||||||||(INCHES)<br>2.|
||||A|||||||||||1.60±0.10||||||||
|**D**||||||||||||||||||||||
|||||||||||||||(.063 ± .004)||||||||
|D||||||||||||||||||||||
|||||||||||||||||||||||
|1.00±0.05<br>(039 ± 002)||||||||||||2.00±0.10<br>(079 ± 004)||||||||||
|||||||||||||||||||||||



Packaging:  3000 pcs. per reel. 

**==> picture [320 x 332] intentionally omitted <==**

**----- Start of picture text -----**<br>
Top View Bottom View Side View Recommended Pad Layout<br>A C<br>1.60 ± 0.10<br>D B (.063 ± .004)<br>D<br>1.00 ± 0.05 2.00 ± 0.10<br>(.039 ± .002) (.079 ± .004)<br>Typical Time to Trip at 23 ˚C<br>1<br>0.1<br>MF-NSHT035KX<br>0.01 MF-NSHT016KX<br>0.001<br>0.0001<br>0.1 1 10 100<br>Fault Current (Amps)<br>Time to Trip (Seconds)<br>**----- End of picture text -----**<br>


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

## ~~**How to Order**~~ 

**MF - NSHT 016 K X - 2** Multifuse[®] Product Designator Series NSHT =  1206 High Temperature Surface Mount Component Hold Current, Ihold 016 - 035 (0.16 - 0.35 Amps) Material Specific Code Multifuse[®] freeXpansion[™] Design Packaging Packaged per EIA 481-1 -2 = Tape and Reel 

## ~~**Typical Part Marking**~~ 

Represents total content. Layout may vary. 

**==> picture [127 x 47] intentionally omitted <==**

**----- Start of picture text -----**<br>
PART IDENTIFICATION:<br>MF-NSHT016KX = D<br>MF-NSHT035KX = F<br>D<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. 

BIWEEKLY DATE CODE WILL APPEAR ON THE PACKAGING LABEL: WEEK 1 AND 2 = A WEEK 51 AND 52 = Z 

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-NSHT Series - PTC Resettable Fuses** 

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

**==> picture [252 x 128] intentionally omitted <==**

**----- Start of picture text -----**<br>
tp<br>TP CRITICAL ZONE<br>RAMP-UP TL TO TP<br>TL<br>t L<br>TS MAX.<br>RAMP-DOWN<br>TS MIN. ts<br>PREHEAT<br>25<br>t  25 *C TO PEAK 8 MINS.<br>Temperature<br>**----- End of picture text -----**<br>


## **Notes:** 

- MF-NSHT models cannot be wave soldered or hand soldered. Please contact Bourns for soldering recommendations. 

- All temperatures refer to topside of the package, measured on the package body surface. 

- If reflow temperatures exceed the recommended profile, devices may not meet the published specifications. 

- Compatible with Pb and Pb-free solder reflow profiles. 

- Excess solder may cause a short circuit, especially during hand soldering. Please refer to the Multifuse[®] Polymer PTC Soldering Recommendation guidelines. 

- Designed for single solder reflow operations. 

## **Time** 

|**Profle Feature**|**Pb-Free Assembly**|
|---|---|
|Average Ramp-Up Rate (TSmaxto Tp)|3 °C / second max.|
|PREHEAT:<br>Temperature Min. (TSmin)<br>Temperature Max. (TSmax)<br>Time (tsminto tsmax)<br>|150 °C<br>200 °C<br>60~180 seconds|
|TIME MAINTAINED ABOVE:<br>Temperature (TL)<br>Time (tL)|217 °C<br>60~150 seconds|
|Peak / Classifcation Temperature (TP)|260 °C|
|Time within 5 °C of Actual Peak Temperature (tp)|20~40 seconds|
|Ramp-Down Rate|6 °C / second max.|
|Time within 25 °C to Peak Temperature|8 minutes max.|



MF-NSHT SERIES, REV. C 05/18 

“freeXpansion Design” is a trademark of Bourns, Inc. 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-NSHT Series Tape and Reel Specifications** 

|**Tape Dimensions**|**Tape Dimensions**|**Tape Dimensions**|**Tape Dimensions**|**Tape Dimensions**|||||||||||||||||**MF-NSHT Series**<br>**per EIA 481-1**|**MF-NSHT Series**<br>**per EIA 481-1**|**MF-NSHT Series**<br>**per EIA 481-1**|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|W|||||||||||||||||||||8.0±0.30<br>(0.315 ± 0.012)|||
|P0|||||||||||||||||||||4.0±0.10<br>(0.157 ± 0.004)|||
|P1|||||||||||||||||||||4.0 ± 0.10<br>(0.157 ± 0.004)|||
|P2|||||||||||||||||||||2.0 ± 0.05<br>(0.079 ± 0.002)|||
|A0|||||||||||||||||||||1.95±0.10<br>(0.077 ± 0.004)|||
|B0|||||||||||||||||||||3.55±0.10<br>(0.140 ± 0.004)|||
|B1 max.||||||||||||||||||||||4.35<br>(0.171)||
|D0|||||||||||||||||||||1.5 + 0.10/-0.0<br>(0.059 + 0.004/-0)|||
|F|||||||||||||||||||||3.5 ± 0.05<br>(0.138 ± 0.002)|||
|E1|||||||||||||||||||||1.75 ± 0.10<br>(0.069 ± 0.004)|||
|E2 min.||||||||||||||||||||||6.25<br>(0.246)||
|T max.||||||||||||||||||||||0.6<br>(0.024)||
|T1 max.||||||||||||||||||||||0.1<br>(0.004)||
|K0|||||||||||||||||||||0.80 ± 0.15<br>(0.031 ± 0.006)|||
|Leader min.||||||||||||||||||||||390<br>(15.35)||
|Trailer min.||||||||||||||||||||||160<br>(6.30)||
|**Reel Dimensions**||||||||||||||||||||||||
|A max.||||||||||||||||||||||185<br>(7.28)||
|N min.||||||||||||||||||||||50<br>(1.97)||
|W1||||||||||||||||||||8.4 + 1.5/-0.0<br>(0.331 + 0.059/-0.0)||||
|W2 m|||ax.|||||||||||||||||||14.4<br>(0.567)||
|B1|||||||||||||||||B0<br>F<br>E2<br>E1<br>W|A||N(HUB DIA.)<br>(MEASURED<br>AT HUB)<br>W2<br>(MEASURED<br>AT HUB)<br>W1<br>DIMENSIONS:<br>MM<br>(INCHES)|||MM|
||||T<br>COVER<br>TAPE<br>K0<br>T1<br>D0|||||P2<br>P0|||||||||E1|||||||
|||||||||||||||||||||||||
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||B1|||||||||||||||||||||||
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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 June 8, 2026

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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