Type C2Q

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. C2Q Feb2025

Temperature Derating Curve

Average Time Current Curve

Electrical Specifications

Catalog

Number

Ampere

Rating

(A)

Nominal

Cold

Resistance

(ohms)

Nominal

Volt-drop

@100% In

(Volt)

Voltage and

Interrupting

Ratings

Nominal

Melting I²T

@10 In

(A²Sec)

Nominal

Power

Dissipation

@100% In

(W)

Agency Approvals

C2Q 250

250mA

0.77

0.243

See Table of

Safety Approvals on

Page 1 for Voltage

and associated

Interrupting Ratings

0.00001

0.06

Y

C2Q 300

300mA

0.54

0.217

0.00003

0.07

Y

C2Q 375

375mA

0.42

0.196

0.00004

0.07

Y

C2Q 500

500mA

0.28

0.171

0.00015

0.09

Y

C2Q 750

750mA

0.17

0.159

0.0005

0.12

Y

C2Q 1

1A

0.122

0.154

0.0010

0.15

Y

C2Q 1.25

1.25A

0.092

0.152

0.0018

0.19

Y

C2Q 1.5

1.5A

0.073

0.146

0.0025

0.22

Y

C2Q 1.75

1.75A

0.063

0.144

0.0044

0.25

Y

C2Q 2

2A

0.053

0.133

0.0063

0.27

Y

C2Q 2.5

2.5A

0.042

0.130

0.0074

0.33

Y

C2Q 3

3A

0.034

0.130

0.018

0.39

Y

C2Q 3.5

3.5A

0.028

0.131

0.021

0.46

Y

C2Q 4

4A

0.023

0.131

0.042

0.52

Y

C2Q 5

5A

0.019

0.131

0.055

0.66

Y

Consult manufacturer for other ratings

Environmental Specifications

Specifications subject to change without notice