Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com

HIGH FREQUENCY MAGNETICS

©2000 Bel Fuse Inc.

Specifications subject to change without notice. 09.00

TM00122

T1-49

T1/E1 Single THT Shielded Hardened Transformer

SCHEMATIC

ELECTRICAL SPECIFICATIONS at 25° C

•

Designed for T1 carrier applications at 1.544 Mbps

•

Typical application is to isolate telecom equipment

such as CSUs and office repeaters from the T1line

•

Maximum ac current rating is 140mA for winding (6 - 7)

and 280mA for winding (4 - 1)

•

Winding (4 - 1) is hardened to handle 6 amp current for

one second with no damage

•

Compatible with water-soluble flux, total-immersion

cleaning, and machine insertion

•

Shielded transformer reduces EMI

•

Designed for 100

Ω terminating impedances

•

Minimum interwinding breakdown voltage of 1000 Vrms

•

Meets IEC-695, 2-2 flammability requirements

•

Qualified per Bellcore TR-TSY-000357-1

Note: Noise suppression is improved by connecting

the shield, terminal 5, to equipment frame ground.

4

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