Website: www.belfuse.com

ORDERING INFORMATION SEE PAGES 67 & 68

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Approvals

Power Cross Rating

600V ac, 40A

Operating Temperature

-55ºC to +125ºC

Physical Specification

Materials

Glass body / Nickel Plated Brass Caps

Lead wire: Tin-lead plated Copper, Diameter 0.032"

Option With Heat Shrink Tubing (VW-1) over body

Marking

On fuse:“bel”,“MJS”,“Current Rating”,“250V” &

“Appropriate Safety Logos”

On label: Above info plus “

c” and interrupting rating

Packaging

1. In bulk: 500 pcs per box

2. On Axial Tape & Reel: 1,500 pcs per reel

3.Tape & Reel specification: per EIA-296-E & IEC 286-1

@ 10mm Pitch and 52.4mm inside Tape Spacing

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-

MJS Fuses are primarily intended for

use in telecommunication circuit applica-

tions requiring low current protection with

high surge tolerance. They are typically

used to replace heat coil type devices.

They are designed to be placed between

the line input and the surge arresting components (mov, gas tube, zenor

diode, air gaps, etc.)

These fuses will withstand transient surge currents generated by

lightning in accordance with the attached table.

MJS fuses guard protected circuitry against sustained overload or

short circuit conditions. Such sustained overloads may be generated by

accidental contact between utility cables and phone lines (power line

cross).

MJS Fuses are used in circuits to obtain compliance with the test

requirements specified in UL 1950/60950 and Bellcore 1089.

MJSD0903

Type MJS

Lightning Surge Withstand Fuse

5 x 15mm Glass Tube

Vßpc

V

ß

p

Consult manufacturer for other ratings

FIG A

FIG B

See P.4 for explanation of Peak Surge Current Withstand

Mechanical Dimensions

0.710"

±0.080"

(18.0

±2.0mm)

0.590"

±0.020"

(1.5

±1.0mm)

0.244"

±0.008"

(6.2

±0.2mm)

WITH INSULATION SLEEVE

0.59"

±0.02"

(15.0

±0.5mm)

0.217"

±0.004"

(5.5

±0.1mm)

1.50"

±0.08"

(38.1

±2.0mm)

SEE LEAD SIZE IN “MATERIAL”

MJS

33