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Surface mount fuses, Nano, Slo-blo – Littelfuse 452 Series User Manual

Page 3: 1 a t

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© 2014 Littelfuse, Inc.

Specifications are subject to change without notice.

Revised: 01/17/14

Surface Mount Fuses

NANO

> Slo-Blo

®

> 452/454 Series

Materials

Body: Ceramic
Terminations:
Gold-plated Caps / Sn-dipped Silver Plated

Caps (452 Series)

Silver-plated Caps (454 Series)

Product Marking

Brand, Ampere Rating

Operating
Temperature

-55°C to 125°C

Moisture
Sensitivity Level

Level 1, J-STD-020C

Solderability

MIL-STD-202, Method 208

Insulation
Resistance (after
Opening)

MIL-STD-202, Method 302, Test Condition

A (10,000 ohms minimum)

Thermal Shock

MIL-STD-202, Method 107, Test

Condition B, 5 cycles, -65°C /

+125°C, 15 minutes @ each extreme

Mechanical Shock

MIL-STD-202, Method 213, Test I:

Deenergized. 100G’s pk amplitude,

sawtooth wave 6ms duration, 3

cycles XYZ+xyz = 18 shocks

Vibration

MIL-STD-202, Method 201: 0.03”

amplitude, 10-55 Hz in 1 min. 2hrs

each XYZ=6hrs

Moisture Resistance

MIL-STD-202, Method 106, 10 cycles

Salt Spray

MIL-STD-202, Method 101, Test

Condition B (48hrs)

Resistance to Soldering
Heat

MIL-STD-202, Method 210, Test

condition B (10 sec at 260°C)

Product Characteristics

1 A

T

6.86

(.270")

3.15

(.124")

2.95

(.116")

1.96

(.077")

2.69 ± .25

(.106")

2.69 ± .25

(.106")

1.45

(.057")

6.10 ± .20

(.240")

Recommended pad layout

F

Dimensions

Packaging

Part Numbering System

packaging

Option

packaging

Specification

Quantity

Quantity &

packaging

Code

12mm Tape

and Reel

EIA RS-481-1

(IEC 286, part 3)

5000

NR

12mm Tape

and Reel

EIA RS-481-1

(IEC 286, part 3)

1000

MR

0452 001. M R L

SERIES

AMP Code

QuANTITy Code

PACkAgINg Code

M = 1000 pcs

N = 5000 pcs

R = Tape and Reel

RoHS Compliant & Halogen Free

Refer to Amp Code column in the

Electrical Specifications table.

The dot is positioned at the end of the

number sequence with whole ratings

and within for fractional ratings.
Example: 0.375 Amp product is
0452.375MRL (1 amp product shown)

452 series may be ordered as either “RoHS and HF” (“L” suffix) or non-RoHS (no

suffix) version.

454 series is available only as “RoHS and HF” version and does not require “L” suffix.

Please do not include “L” suffix within 454 series ordering instructions.

SN-RoHS Compliant & Halogen Free
(Sn-dipped Caps)

452 Series

454 Series

452 Series

454 Series

452 Series

454 Series

Additional Information

Datasheet

Samples

Resources

Datasheet

Samples

Resources