MF-MSHT Series – PTC Resettable Fuses

Features

n

High power ratings with higher hold

currents at elevated temperatures

n

Operating temperature range from -40 °C

to 125 °C

n

Low thermal derating factor

n

Standard 1812 footprint size

n

Compliant with AEC-Q200 Rev-D Stress

Test Qualification for Passive Components

in automotive applications

n

Surface mount packaging for automated

assembly

n

Agency recognition:

n

RoHS compliant*

Electrical Characteristics

Model

Vmax Imax

Ihold Itrip

Resistance

Max. Time

To Trip

Tripped

Power

Dissipation

Agency Recognition

AEC-Q200

Compliant

at 23 °C

at 23 °C

Ohms

at 23 °C

at 23 °C

Watts

cUL

TÜV

Volts Amps

Amps

RMin. R1Max.** Amps Seconds

Typical

E174545 R 50384138

MF-MSHT020KX

42

40

0.20 1.0

0.5

4.5

8.0

0.1

1.2

3

3

3

MF-MSHT035KX

36

40

0.35 1.75

0.3

2.6

8.0

0.1

1.2

3

3

3

MF-MSHT050KX

30

40

0.50 2.5

0.18

1.6

8.0

0.1

1.2

3

3

3

MF-MSHT075KX

30

40

0.75 3.75

0.09

0.85

8.0

5.0

1.5

3

3

3

MF-MSHT110KX

16

40

1.10 5.5

0.05

0.45

8.0

5.0

1.5

3

3

3

MF-MSHT125KX

9

40

1.25 6.25

0.03

0.30

8.0

5.0

1.5

3

pending

3

MF-MSHT150KX

9

40

1.50 6.0

0.022

0.20

10.0

5.0

1.5

3

pending

3

MF-MSHT175KX

9

40

1.75 7.0

0.018

0.17

10.0

5.0

1.5

3

pending

3

**R1Max. measured 24 hours post reflow

Environmental Characteristics

Item

Condition

Criteria

Operating Temperature

-40 °C to +125 °C

Recommended Storage

+40 °C max. / 70 % R.H. max.

Passive Aging

+125 °C, 1000 hours

R < R1max

Humidity Aging

+85 °C, 85 % R.H. 1000 hours

R < R1max

Thermal Shock

-40 °C to +125 °C, 20 times

R < R1max

Solvent Resistance

MIL-STD-202, Method 215

No change (marking still legible)

Vibration

MIL-STD-883C, Method 2007.1 Condition A

No change (Rmin < R < R1max)

Moisture Sensitivity Level (MSL)

See Note

ESD Classification

Class 6 (per AEC-Q200-2, HBM)

Test Procedures and Requirements

Item

Test Condition

Accept/Reject Criteria

Visual/Mechanical

Verify dimensions and materials

Per MF physical description

Resistance

In still air @ 23 °C

Rmin ≤ R ≤ Rmax

Time to Trip

At specified current, Vmax, 23 °C, still air

T ≤ max. time to trip (seconds)

Hold Current

30 min. at Ihold, still air

No trip

Trip Cycle Life

Vmax, Imax, 100 cycles

No arcing or burning

Trip Endurance

Vmax, 48 hours

No arcing or burning

Solderability

245 °C ±5 °C, 5 seconds

95 % min. coverage

WARNING Cancer and Reproductive Harm

www.P65Warnings.ca.gov

*RoHS Directive 2015/863, Mar 31, 2015 and Annex.

Specifications are subject to change without notice. Users should verify actual device performance in their

specific applications. The products described herein and this document are subject to specific legal disclaimers

as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.

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