MF-SMHT Series - PTC Resettable Fuses

Applications

n

Protection of various automotive circuitries

n

Overcurrent surge protection of electronic equipment operated in elevated temperatures

n

Resettable fault protection of general electronic equipment

n

Communication and security systems

n

Body electronics

n

Climate control systems

Product Dimensions

Model

A

B

C

D

E

F

G

H

Min.

Max.

Max.

Max.

Min.

Max.

Min.

Max

Min.

Max.

Min.

Max.

Min.

MF-SMHT136

6.73

(0.265)

7.98

(0.314)

3.00

(0.118)

5.44

(0.214)

0.56

(0.022)

0.71

(0.028)

0.56

(0.022)

0.71

(0.028)

2.16

(0.085)

2.41

(0.095)

0.66

(0.026)

1.37

(0.054)

0.43

(0.017)

MF-SMHT160

8.00

(0.315)

9.50

(0.374)

3.00

(0.118)

6.71

(0.264)

0.56

(0.022)

0.71

(0.028)

0.56

(0.022)

0.71

(0.028)

3.68

(0.145)

3.94

(0.155)

0.66

(0.026)

1.37

(0.054)

0.43

(0.017)

MF-SMHT300

8.00

(0.315)

9.50

(0.374)

3.00

(0.118)

6.71

(0.264)

0.56

(0.022)

0.71

(0.028)

0.56

(0.022)

0.71

(0.028)

3.68

(0.145)

3.94

(0.155)

0.66

(0.026)

1.37

(0.054)

0.43

(0.017)

A

D

H

F

E

C

End View

Side View

G

B

A

D

H

F

E

C

End View

Side View

G

B

Terminal material:

Tin-plated brass

10.7 ± 0.1

(0.42 ± 0.004)

4.6 ± 0.1

(0.18 ± 0.004)

2.3 ± 0.1

(0.09 ± 0.004)

2.3 ± 0.1

(0.09 ± 0.004)

9.7 ± 0.1

(0.38 ± 0.004)

3.1 ± 0.1

(0.12 ± 0.004)

3.1 ± 0.1

(0.12 ± 0.004)

Recommended Pad Layout

MF-SMHT136

4.6 ± 0.1

(0.18 ± 0.004)

Recommended Pad Layout

MF-SMHT160 and MF-SMHT300

10.7 ± 0.1

(0.42 ± 0.004)

4.6 ± 0.1

(0.18 ± 0.004)

2.3 ± 0.1

(0.09 ± 0.004)

2.3 ± 0.1

(0.09 ± 0.004)

9.7 ± 0.1

(0.38 ± 0.004)

3.1 ± 0.1

(0.12 ± 0.004)

3.1 ± 0.1

(0.12 ± 0.004)

Recommended Pad Layout

MF-SMHT136

4.6 ± 0.1

(0.18 ± 0.004)

Recommended Pad Layout

MF-SMHT160 and MF-SMHT300

Typical Part Marking

Represents total content. Layout may vary.

MANUFACTURER’S

TRADEMARK

PART

IDENTIFICATION

136

4A

DATE CODE -

WEEK 1 OF 2004 = 4A

(YEAR & WEEK)

WEEK 27 OF 2004 = A4

(WEEK & YEAR)

How to Order

MF - SMHT 136 - 2

Multifuse® Product

Designator

Series

SMHT = Surface Mount

High Temperature Component

Hold Current, Ihold

136 - 300 (1.36 - 3.0 Amps)

Packaging Options

- 2 = Tape and Reel packaged per EIA-481

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.

DIMENSIONS:

MM

(INCHES)

MF-SMHT136 = 2,000 pcs. per reel

MF-SMHT160 = 1,500 pcs. per reel

MF-SMHT300 = 1,500 pcs. per reel

Packaging Quantity

Thermal Derating Chart - Ihold/Itrip (Amps)

Model

Ambient Operating Temperature

-40 °C

-20 °C

0 °C

23 °C

40 °C

50 °C

60 °C

70 °C

85 °C

125 °C

MF-SMHT136 1.91 / 3.82 1.72 / 3.44 1.54 / 3.08 1.36 / 2.72 1.18 / 2.36 1.09 / 2.18 1.00 / 2.00 0.91 / 1.82 0.77 / 1.54 0.40 / 0.80

MF-SMHT160 2.15 / 4.30 1.96 / 3.92 1.78 / 3.56 1.60 / 3.20 1.42 / 2.84 1.33 / 2.66 1.24 / 2.48 1.15 / 3.30 1.02 / 2.04 0.64 / 1.28

MF-SMHT300 4.23 / 8.46 3.84 / 7.68 3.48 / 6.96 3.00 / 6.00 2.73 / 5.46 2.52 / 5.04 2.34 / 4.68 2.16 / 4.32 1.86 / 3.72 1.11 / 2.22