Specifications are subject to change without notice.

Electrical Characteristics

Features

■

Fast tripping resettable circuit protection

■

Low internal resistance

■

Patents pending

■

Weldable nickel terminals

■

Agency recognition:

Applications

■

AAA size battery cells

One Hour

Ih

Typical

Initial

Post-Trip

Maximum

Tripped

Rated

Current Trip Limit

Resistance

Resistance

Time

Power

Current

Values

Standard Trip

To Trip

Dissipation

V max.

I max.

Amps

Amps

Amps

Amps

Ohms

Ohms

Seconds

Watts

Model

Volts

Amps

at 23°C

at 0°C

at 23°C

at 60°C

at 23°C

at 23°C

at 23°C

at 23°C

Hold

Hold

Trip

Hold

Trip

Hold

Trip

Min.

R1 Max.

Max.

Typ.

MF-AAA170

15

50

1.7

2.0

4.2

1.7

3.7

1.3

2.5

0.050

0.072

0.120

5 @ 8.5A

1.3

MF-AAA210

15

50

2.1

2.3

5.4

2.1

4.5

1.5

3.4

0.036

0.048

0.086

5 @ 10.5A

1.3

MF-AAA, REV. F, 11/02

Operating/Storage 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. 7 days ............................±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 A ..........................No change

Condition A

Environmental Characteristics

Test

Test Conditions

Accept/Reject Criteria

Visual/Mech. ......................................................Verify dimensions and materials..................Per MF physical description

Resistance ..........................................................In still air @ 23°C ........................................Rmin ≤ R ≤ Rmax

Time to Trip ........................................................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

UL File Number ..................................................E 174545S

CSA File Number ................................................CA 110338

TÜV File Number ................................................R2057213

Test Procedures And Requirements For Model MF-AAA Series

Thermal Derating Chart - Ihold (Amps)

Ambient Operating Temperature

Model

-40˚C

-20˚C

0˚C

23˚C

40˚C

50˚C

60˚C

70˚C

85˚C

MF-AAA170

2.45

2.21

2.00

1.70

1.56

1.44

1.30

1.19

1.08

MF-AAA210

2.03

2.20

2.30

2.10

1.90

1.71

1.50

1.37

1.29

*Itrip is approximately two times Ihold.

NOTE: Model MF-AAA is agency approved for 10V.