Features

Test Qualification for Passive Components

in Automotive Applications

temperature

electronic equipment

MF-RHT Series - PTC Resettable Fuses

*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.

Electrical Characteristics

Model

V max.

Volts

I max.

Amps

Ihold

Itrip

Resistance

Max. Time

To Trip

Tripped

Power

Dissipation

Amperes

at 23 °C

Ohms

at 23 °C

Amperes

at 23 °C

Seconds

at 23 °C

Watts

at 23 °C

Hold

Trip

RMin.

R1Max.

(Post Trip)

Max.

Typ.

MF-RHT070

16

40

0.7

1.4

0.3

0.8

3.5

4.0

1.4

MF-RHT200

16

100

2.0

3.8

0.045

0.110

12.5

3.0

1.4

MF-RHT450

16

100

4.5

7.8

0.022

0.054

22.5

3.0

3.6

MF-RHT650

16

100

6.5

12.0

0.011

0.026

32.5

5.5

4.3

MF-RHT750

16

100

7.5

13.1

0.0094

0.022

37.5

7.0

4.5

MF-RHT1300

16

100

13.0

24.0

0.0041

0.010

60.0

13.0

6.9

Environmental Characteristics

Operating Temperature......................................... -40 °C to +125 °C

Storage Temperature............................................ -40 °C to +85 °C

Passive Aging ....................................................... +85 °C, 1000 hours............................................... ±15 % typical resistance change

Humidity Aging...................................................... +85 °C, 85 % R.H. 1000 hours ............................. ±15 % typical resistance change

Thermal Shock ..................................................... MIL-STD-202, Method 107, .................................. ±10 % 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-RHT Series

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-202, Method 208 ................................... 95 % min. coverage

Thermal Derating Chart - Ihold (Amps)

Model

Ambient Operating Temperature

-40

°C

-20

°C0 °C

23

°C

40

°C

50

°C

60

°C

70

°C

85

°C

125

°C

MF-RHT070

0.95

0.87

0.79

0.7

0.62

0.56

0.51

0.47

0.39

0.17

MF-RHT200

2.71

2.49

2.26

2.00

1.77

1.60

1.46

1.34

1.11

0.49

MF-RHT450

6.1

5.6

5.1

4.5

4.0

3.6

3.3

3.0

2.5

1.1

MF-RHT650

8.8

8.1

7.4

6.5

5.7

5.3

4.8

4.3

3.6

1.6

MF-RHT750

10.2

9.4

8.6

7.5

6.6

6.1

5.6

5.0

4.1

1.9

MF-RHT1300

17.7

16.3

14.8

13.0

11.4

10.5

9.6

8.6

7.2

3.3

RH750

4180S

How to Order

MF - RHT 750 - __

Designator

Series

RHT = High Temperature

Radial Leaded Component

Hold Current, Ihold

070 - 1300 (0.70 - 13.00 Amps)

Packaging Options

-

=

Bulk Packaging

- 2 =

Tape and Reel*

- AP = Ammo-Pak*

*Packaged per EIA 486-B