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Surface mount fuses, Average time current curves, Soldering parameters temperature rerating curve – Littelfuse 446 Series User Manual

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© 2013 Littelfuse, Inc.

Specifications are subject to change without notice.
Revised: 12/19/13

Surface Mount Fuses

EBF Fuse Fast-Acting > 446/447 Series

Materials

Body: Plastic Body – Terminations: Tin-load

(95/5) plated Zn, Ni barrier

Cleaning

No-cleaning process recommended

Operating
Temperature

–40

O

C to 125

O

C

Product Characteristics

Dimensions

Packaging

Part Numbering System

PATA6

04

602

LF

350V

10.92

(.430")

8.76

(.345")

(.032")

0.81

(.295")

7.49

1.50 (.059") MAX

3.2 (.126")

0.81

(.032")

3.2

(.126")

5.59

(.220")

3.81

(.150")

1.52

(.060")

1.44

(.057")

5.91

(.233")

8.81

(.347")

4.03

(.159")

1.27

(.050") Dia

10.11

(.398")

Reference Dimensions

(Inches)

Recommended

Pad Layout

447 Mounting

Holes

Average Time Current Curves

1000

100

10

1

0.1

0.01

1000

100

10

1

0.1

2A

3A 4A 5A 7 1/2A 10A

TIME IN SECONDS

CURRENT IN AMPERES

Soldering Parameters

Temperature Rerating Curve

Note:
1. Derating depicted in this curve is in addition to the standard derating of 25% for

continuous operation.

For 447 dimensions, please contact Littelfuse for specifications.

446 Series:
Reflow Solder — 235°C, 5 seconds maximum.
No-clean process recommended.
Wave Solder — Not recommended.
Non-plated terminal surfaces may not meet
MIL-STD-202, Method 208.

447 Series:
Contact Littelfuse for soldering parameters.
Inside terminal face of each lead is non-plated zinc.
Non-plated zinc terminal faces may not meet MIL-STD-202,
method 208. To ensure that the fuse is acceptable for the
application, appropriate application testing should be performed.

packaging

Option

packaging

Specification

Quantity

Quantity &

packaging Code

446 Series

24mm Tape

and Reel

EIA RS-481-1

(IEC 286, part 3)

800

ZRP

447 Series

Bulk Pack

4000

YXP

0446 002. ZRP

Series
Amp Code
Quantity Code

ZRP = 800

0447 002. YXP

Series
Amp Code
Quantity Code

YXP = 4000

Surface Mount Fuses:

Through Hole Fuses: