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

©2000 Bel Fuse Inc. Specifications subject to change without notice. 09.00

TM00141

T1-91

ELECTRICAL SPECIFICATIONS AT 25° C

SCHEMATICS

•

Operates at the rate of 1.544 Mb/s and the E1 rate of

2.048 Mb/s

•

Interwinding Electrostatic Shield provides low

capacitance and high EMI suppression

•

2771K and S553-6500-84: Winding (4-1) is

hardened to handle a 6A surge for 1 second

•

2771M: All windings are hardened to handle a 6A

surge for 1 second

•

Minimum Interwinding Breakdown Voltage of 1500

Vrms

HIGH FREQUENCY MAGNETICS

T1/E1 Surface Mount Shielded Hardened Transformers

2771M

•

Operating temperature range: -40° C to +85° C

•

Meets IEC 695, 2-2 flammability requirements

•

PWB Process Capability: standard printed wiring board

assembly techniques, total-immersion cleaning

•

Reliability testing: Shock, vibration, temperature cycling,

temperature - humidity - bias

S553-6500-84

2771K

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