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© 2009 Littelfuse, Inc.

Specifications are subject to change without notice.

Surface Mount Fuses

452/454 Series

Please refer to www.littelfuse.com/series/452.html

or /454.html for current information.

452/454 Series Fuse

Description

unique time delay feature of this fuse design helps solve

the problem of nuisance “opening” by accommodating

inrush currents that normally cause a fast-acting fuse to

open.

Features

temperature range

de-rating

Electrical Characteristics for Series

% of Ampere

Rating

OpeningTime

100%

4 hours, Minimum

200%

1 sec., Min.; 60 sec., Max.

800%

0.02 sec., Min.; 0.1 sec., Max.

PS

E

Electrical Specifications by Item

Ampere

Rating

(A)

Amp Code

Max

Voltage

Rating

(V)

Interrupting

Rating

Nominal Cold

Resistance

(Ohms)

Nominal

Melting

Agency Approvals

PS

E

1.2000

0.101

x

x

0.240

x

x

0.904

x

x

001.

001.

1.98

x

x

x

xx

x

2.00

002.

8.20

x

x

x

xx

x

20.16

x

x

x

0.0224

xx

x

4.00

004.

0.0186

xx

x

xx

x

xx

8

008.

0.0088

xx

12

012.

0.0061

260.46

x

x

Applications

equipment

protection

Agency Approvals

AGENCY

AGENCY FILE NUMBER

AMPERE RANGE

E10480

375mA - 12A

LR29862

375mA - 12A

PS

E

NBK030205-E10480B

1A - 5A

Notes:

- Resistance is measured at 10% of rated current, 25ºC

Revised: May 3, 2011