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-LSMF Series - PTC Resettable Fuses

Product Dimensions

DIMENSIONS:

MM

(INCHES)

Applications

Model

AB

C

D

E

Min.

Max.

Min.

Max.

Min.

Max.

Min.

Min.

Max.

MF-LSMF185/33X

6.73

(0.265)

7.98

(0.312)

4.80

(0.189)

5.44

(0.214)

0.75

(0.030)

1.60

(0.063)

0.30

(0.012)

0.25

(.010)

2.00

(.079)

MF-LSMF260X

6.73

(0.265)

7.98

(0.312)

4.80

(0.189)

5.44

(0.214)

0.75

(0.030)

1.60

(0.063)

0.30

(0.012)

0.25

(.010)

2.00

(.079)

MF-LSMF300X

6.73

(0.265)

7.98

(0.312)

4.80

(0.189)

5.44

(0.214)

0.35

(0.014)

0.85

(0.033)

0.30

(0.012)

0.25

(.010)

2.00

(.079)

MF-LSMF300/24X

6.73

(0.265)

7.98

(0.312)

4.80

(0.189)

5.44

(0.214)

0.75

(0.030)

1.60

(0.063)

0.30

(0.012)

0.25

(.010)

2.00

(.079)

Packaging: 3000 pcs. per reel.

Terminal material:

Electroless Ni under immersion Au

Termination pad solderability:

Standard Au finish:

Meets ANSI/J-STD-002 Category 2.

Recommended Storage:

40 °C max./70 % RH max.

Typical Time to Trip at 23 ˚C

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.

Top View

Bottom View

Side View

Recommended Pad Layout

9

X

A

B

D

E

C

5.3 ± 0.10

(.209 ± .004)

4.6 ± 0.10

(.181 ± .004)

2.0 ± 0.05

(.079 ± .002)

0

0

1

0

1

1

Fault Current (Amps)

0.1

0.01

1

10

100

MF-LSMF260X

MF-LSMF300/24X

MF-LSMF300X

MF-LSMF185/33X