Features

0805 footprint

to fault events

Applications

protection

MF-PSMF Series - PTC Resettable Fuses

*RoHS Directive 2002/95/EC Jan 27, 2003 including Annex.

**To be considered halogen free, each homogenous material can have a maximum concentration of 900 ppm of either bromine or chlorine.

Specifications are subject to change without notice.

Customers should verify actual device performance in their specific applications.

Environmental Characteristics

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

Maximum Device Surface Temperature

in Tripped State .................................................... 125 °C

Passive Aging ....................................................... +85 °C, 1000 hours............................................... ±5 % typical resistance change

Humidity Aging ..................................................... +85 °C, 85 % R.H. 1000 hours ............................. ±5 % typical resistance change

Thermal Shock ..................................................... +85 °C to -40 °C, 20 times ................................... ±10 % typical resistance change

Solvent Resistance............................................... MIL-STD-202, Method 215................................... No change

Vibration ............................................................... MIL-STD-883C, Method 2007.1, .......................... No change

Condition A

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.

Typ.

MF-PSMF010X

15

40

0.10

0.30

1.0

7.5

0.5

1.5

0.5

MF-PSMF020X

9

40

0.20

0.50

0.65

3.5

8.00

0.02

0.5

MF-PSMF035X

6

40

0.35

0.75

0.250

1.200

8.00

0.10

0.5

MF-PSMF050X

6

40

0.50

1.00

0.150

0.900

8.00

0.10

0.5

MF-PSMF075X

6

40

0.75

1.50

0.090

0.350

8.00

0.20

0.6

MF-PSMF110X

6

40

1.10

2.20

0.060

0.210

8.00

0.30

0.6

Test Procedures And Requirements For Model MF-PSMF 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.......................................................... ANSI/J-STD-002 ................................................... 95 % min. coverage

UL File Number .................................................... E174545

http://www.ul.com/ Follow link to Certifications, then UL File No., enter E174545

Thermal Derating Chart - Ihold (Amps)

Model

Ambient Operating Temperature

-40 °C

-20 °C

0 °C

23 °C

40 °C

50 °C

60 °C

70 °C

85 °C

MF-PSMF010X

0.15

0.13

0.12

0.10

0.09

0.08

0.07

0.06

0.05

MF-PSMF020X

0.28

0.25

0.23

0.20

0.17

0.14

0.12

0.10

0.07

MF-PSMF035X

0.47

0.44

0.39

0.35

0.30

0.27

0.24

0.20

0.14

MF-PSMF050X

0.68

0.62

0.55

0.50

0.40

0.37

0.33

0.29

0.23

MF-PSMF075X

1.00

0.90

0.79

0.75

0.63

0.57

0.53

0.42

0.35

MF-PSMF110X

1.45

1.35

1.20

1.10

0.92

0.84

0.75

0.65

0.52