Introduction to Circuit Protection

Introduction to Circuit Protection

Transientology

52

© 2009 Littelfuse, Inc.

Specifications are subject to change without notice.

Surface Mount Fuses

448 Series

Please refer to www.littelfuse.com/series/448.html for current information.

Materials

Product Marking

Operating

Temperature

o

Moisture Sensitivity

Level

Solderability

Insulation

Resistance (after

Opening)

Thermal Shock

o

Mechanical Shock

sawtooth wave 6ms duration, 3

Vibration

Moisture Resistance

Salt Spray

Resistance to Soldering

Heat

o

Product Characteristics

F

7 A

6.86

(.270")

3.15

(.124")

2.95

(.116")

1.96

(.077")

2.69

(.106")

2.69

(.106")

1.45

(.057")

6.10

(.240")

Recommended pad layout

Dimensions

Packaging

Part Numbering System

Packaging Option

Packaging Specification

Quantity

Quantity &

Packaging Code

12mm Tape and Reel

1000

MR

0448 001. M R

SERIES

QUANTITY Code

PACKAGING Code

Refer to Electrical

Characteristics table

M = 1000 pcs

R =Tape and Reel

*Example:

1.5 amp product is 044801.5MR