Type 0679L

2 / 4

Bel Fuse Inc.

300 Executive Drive, Suite 300

West Orange, NJ 07052 USA

+1 201.432.0463

Bel.US.CS@belf.com

belfuse.com/circuit-protection

© 2025 Bel Fuse, Inc.

Rev. 0679L Feb2025

Environmental Specifications

Electrical Specifications

Part Number

Ampere

Rating

(A)

Typical Cold

Resistance

(ohms)

Volt-drop

@100% In

(Volt) max.

Voltage and

Interrupting

Ratings

Melting I²T

<10m Sec

(A²Sec)

Melting I²T

@10 In

(A²Sec)

Maximum

Power

Dissipation

(W)

Agency

Approvals

0679L0250-XX

250mA

0.55

0.530

See Table of Safety

Approvals on Page

1 for Voltage and

associated

Interrupting Ratings

0.01

0.02

0.13

Y

0679L0375-XX

375mA

0.32

0.480

0.04

0.04

0.18

Y

0679L0500-XX

500mA

0.22

0.470

0.08

0.08

0.24

Y

0679L0630-XX

630mA

0.17

0.410

0.15

0.15

0.26

Y

0679L0750-XX

750mA

0.14

0.380

0.24

0.26

0.29

Y

0679L1000-XX

1A

0.09

0.280

0.51

0.54

0.28

Y

0679L1250-XX

1.25A

0.068

0.250

0.21

0.22

0.31

Y

0679L1500-XX

1.5A

0.053

0.250

0.32

0.29

0.38

Y

0679L2000-XX

2A

0.035

0.240

0.62

0.68

0.48

Y

0679L2500-XX

2.5A

0.028

0.240

0.96

1.13

0.60

Y

0679L3000-XX

3A

0.022

0.220

1.6

1.8

0.66

Y

0679L3500-XX

3.5A

0.019

0.220

2.0

2.2

0.77

Y

0679L4000-XX

4A

0.018

0.220

3.1

3.5

0.88

Y

0679L5000-XX

5A

0.014

0.200

5.3

5.5

1.00

Y

0679L6300-XX

6.3A

0.011

0.190

8.7

8.3

1.20

Y

0679L7000-XX

7A

0.010

0.175

11.1

10.8

1.23

Y

0679L8000-XX

8A

0.0085

0.170

14.8

14.1

1.36

Y

0679L9100-XX

10A

0.0064

0.150

25.7

25.7

1.50

Y

0679L9120-XX

12A

0.0054

0.140

41.0

38.9

1.68

Y

0679L9150-XX

15A

0.0038

0.130

76.7

103.5

1.95

Y

0679L9200-XX

20A

0.0032

0.130

130.5

128.0

2.60

Y

Consult manufacturer for other ratings

XX - Packa

ging code (see “ordering information”)

NOTES:

All tests were conducted with the fuses soldered to a printed circuit boards with a nominal thickness of 1.6 mm. The copper test circuit trace

was a printed circuit with an overall length of 100 mm, copper thickness/width as described

below. The printed circuit boards were mounted by screws to a test fixture having brass

blocks for connection of the test leads. All samples were soldered to the test boards by the

manufacturer.

Shock Resistance

MIL-STD-202G, Method 213B, Test Condition 1

(100 G's peak for 6 milliseconds; Sawtooth

waveform)

Vibration Resistance

MIL-STD-202G, Method 201A

(10-55 Hz, 0.06 inch, total excursion).

Salt Spray Resistance

MIL-STD-202G, Method 101E, Test Condition B

(48 hrs.).

Insulation Resistance

MIL-STD-202G, Method 302, Test Condition A

(After Opening) 10,000 ohms minimum.

Solderability

MIL-STD-202G, Method 208H

Resistance to solder Heat

MIL-STD-202G, Method 210F, Test Condition C.

Top Side (260

℃,20 sec)

MIL-STD-202G, Method 210F, Test Condition D.

Bottom Side (260

℃,10 sec)

Thermal Shock

MIL-STD-202G, Method 107G, Test Condition B

(-65

℃ to +125℃).

Operating Temperature

-55

℃ to +125℃

Moisture Sensitivity Level

1 (According to IPC J-Std-020)

High temperature storage

MIL-STD-202 Method 108

Temperature cycling

JESD22 Method JA-104,Test Condition B

Biased humidity

MIL-STD-202 Method 103, 85C/85% RH with

10% operating power for 1000 hrs.

Operational life

MIL-STD-202 Method 108, Test Condition D

Resistance to solvents

MIL-STD-202 Method 215

Mechanical shock

MIL-STD-202 Method 213,Test Condition C

Vibration

MIL-STD-202 Method 204

Resistance to soldering

heat

MIL-STD-202 Method 210,Test condition B

Thermal shock

MIL-STD-202 Method 107

Solderability

J-STD-002

Board flex(SMD)

AEC-Q200-005

Terminal strength

AEC-Q200-006

Electrical characterization

3 temperature electrical

Fuse rating

Test Board Trace Dimensions

250mA-5A

1 oz. copper, 5.0mm wide.

6A-20A

3 oz. copper, 10mm wide.

Specifications subject to change without notice