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© 2009 Littelfuse, Inc.

Specifications are subject to change without notice.

Surface Mount Fuses

501 Series

Ceramic Fuse > 501 Series

Please refer to www.littelfuse.com/series/501.html for current information.

Materials

Body: Advanced Ceramic

Terminations:

Element Cover Coating: Lead-free Glass

Moisture

Sensitivity Level

Solderability

Humidity Test

ESD Immunity

Resistance to

Solvents

Product Characteristics

Moisture Resistance

Thermal Shock

Mechanical Shock

Condition A

Vibration

Vibration,

High Frequency

Dissolution of

Metallization

Terminal Strength

IEC 60127-4

Dimensions

Packaging

Part Marking System

Packaging Option

Packaging Specification

Quantity

Quantity &

Packaging Code

8mm Tape and Reel

EIA-481-1 (IEC 286, part 3)

3000

WR

Part Numbering System

0501 020. W R

SERIES

AMP CODE

QUANTITY CODE

PACKING CODE

W = 3000 pcs

20

1.000

[.039]

1.63 +.10/-.20

[.064 +.004/-.008]

3.200 ± .1778

[.126 ± .007]

.8179 +.046/-.076

[.0322 +.0018/-.003]

TERMINATION

.520 ± .200

[.020 ± .008]

1.500

[.059]

1.800

[.071]

3.500

[.138]

1.000

[.039]

Amp Code

Marking Code

010.

10

012.

12

015.

15

020.

20