MJS 7

MJS 7 Datasheet


MJSD0903

Part Datasheet
MJS 7 MJS 7 MJS 7 (pdf)
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PDF Datasheet Preview
MJSD0903

Type MJS

Lightning Surge Withstand Fuse
5 x 15mm Glass Tube

MJS Fuses are primarily intended for use in telecommunication circuit applications 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

Electrical Characteristics UL/CSA STD.248-14

Testing Current
100% 135% 200% 500% 1000%

Blow Time

Minimum

Maximum
4 Hrs.
3 sec
20 sec
100 msec
30 msec
300 msec

Approvals

Vßpc

Safety Agency Approvals

V Listed File no. E20624 ß Certified File no. LR39772 p File no. JET1037-31003-1003

Amp range / Volt I.R. ability 100mA.- 7A / 125V 10,000A 100mA.- 7A / 250V 200A 1A.- 5A / 125V 500A
mCatalog Number

MJS 100

Ampere Rating
100mA

Typical Cold Resistance ohm

Volt-drop In

Volt max.

Melting I2T < 10 mSec

A2 Sec

Melting I2T In

A2 Sec

Peak Surge Current Amp

Fig A
fig B
25 Pulses
50 Pulses
10uS x 1000uS 10uS x 560uS

Maximum Power

Dissipation W
ORDERING INFORMATION SEE PAGES 67 & 68

Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302
• Tel 201-432-0463
• Fax 201-432-9542
• E-Mail Website:

Type MJS

Lightning Surge Withstand Fuse
5 x 15mm Glass Tube

MJS - TIME CURRENT CHARACTERISTIC CURVE

MJSC0801
- 100mA - 125mA - 150mA - 200mA - 250mA - 350mA - 400mA - 500mA - 700mA - 750mA - 1A - 1.25A - 1.5A - 2A - 2.5A - 3A - 3.5A - 4A - 5A - 6A - 7A
10000
1000

TIME IN SECONDS

Specifications subject to change without notice
1000

CURRENT IN AMPERES

NOTE - see important information under “User Guide”on P.08

Corporate Office Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 E-Mail Website:

Far East Office Bel Fuse Ltd. 8F/8 Luk Hop Street San Po Kong Kowloon, Hong Kong Tel 852-2328-5515 Fax 852-2352-3706

European Office Bel Fuse Europe Ltd. Preston Technology Management Centre Marsh Lane, Preston PR1 8UD Lancashire, U.K Tel 44-1772-556601 Fax 44-1772-888366
More datasheets: MJS 400 | MJS 100 | MJS 750 | MJS 1 | MJS 1.25 | MJS 1.5 | MJS 2 | MJS 2.5 | MJS 3 | MJS 350


Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived MJS 7 Datasheet file may be downloaded here without warranties.

Datasheet ID: MJS 7 522009