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© 2009 Littelfuse, Inc.

Specifications are subject to change without notice.

Surface Mount Fuses

203 Series

Please refer to www.littelfuse.com/series/203.html for current information.

203 Series Fuse

Description

designs are available. Both designs are available in either a

gull-wing surface mount package or a DIP configuration for

through-hole mounting. These fuse designs feature a 250

VAC rating in a low profile, rectangular package.

Agency Approvals

AGENCY

AGENCY FILE

NUMBER

AMPERE RANGE

E10480

1/4mA - 5A

LR29862

1/4mA - 5A

Electrical Characteristics for Series

% of Ampere

Rating

OpeningTime

100%

4 hours, Minimum

200%

1 second, Min; 30 seconds Max.

Electrical Specifications by Item

Ampere

Rating

(A)

Amp Code

Max

Voltage

Rating

(V)

Interrupting

Rating

Nominal Cold

Resistance

(Ohms)

Nominal Melting

Agency Approvals

0.25

.250

250

50 amperes

@250 VAC

1.36

0.0126

x

x

0.50

.500

250

0.433

0.112

x

x

0.75

.750

250

0.158

0.327

x

x

1.00

001.

250

0.0755

0.328

x

x

1.50

01.5

250

0.0390

0.850

x

x

2.00

002.

250

0.0345

1.70

x

x

2.50

02.5

250

0.0237

2.87

x

x

3.00

003.

250

0.0197

4.40

x

x

4.00

004.

250

0.0148

8.75

x

x

5.00

005.

250

0.0124

14.7

x

x

Revised: June 29, 2011