2771B BEL | Alldatasheet
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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 TM00133 T1-75 ELECTRICAL SPECIFICATIONS AT 25° C SCHEMATICS
- Operate at the T1 rate of 1.544 Mb/s and the E1 rate of 2.048 Mb/s
- Split windings provide maximum application flexibilty
- Minimum interwinding breakdown voltage of 1500 Vrms 2771C
- 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 HIGH FREQUENCY MAGNETICS T1/E1 Surface Mount Transformers 2771B rebmuNtraP oitaRsnruT %2± yramirP ecnatcudnI 1 nimHm egakaeL ecnatcudnI 2 xamHµ RCD ΩΩΩΩΩ xam gnidniwretnI ecnaticapaC xamFp ceS:irP 3 irP ceS 3 B1772T C41.1:15 7.12 8 .08 .00 8 C1772T C2:TC1 4 51.3 4 30 1.1 4 52.20 3 caV1.0,zHk01taderusaem.1 caV1.0,zHk001taderusaem.2 7ot6tcennoc.3 3ot2tcennoc.4 1 : 1.14 CT CT
1 CT : 2 CT
Bel Fuse Inc.
198 Van Vorst Street
Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com FAR EAST Bel Fuse Ltd. 8F / 8 Luk Hop Street San Po Kong Kowloon, Hong Kong Tel 852-2328-5515 Fax 852-2352-3706 www.belfuse.com EUROPE Bel Fuse Europe Ltd. Preston Technology Management Centre Marsh Lane, Suite G7, Preston Lancashire, PR1 8UD, U.K. Tel 44-1772-556601 Fax 44-1772-888366 www.belfuse.com ©2000 Bel Fuse Inc. Specifications subject to change without notice. 09.00 TM00133 T1-76 HIGH FREQUENCY MAGNETICS T1/E1 Surface Mount Transformers MECHANICAL 2771B 2771C 0.590 (14.99) 0.495 (12.57) MAX 0.430 (10.92) MAX TERMINAL 1 IDENTIFIER 0.395 (10.03) MAX 0.23 (0.58) X 0.100 (2.54) FOOT (PHOSPHOR BRONZE, SOLDER COATED) 1 23 4 8 7 6 5 0.004
8 EDGES
0.100 (2.54) TYP 0.255 (6.48) COMPONENT CENTER 0.008 (0.203)
2 PLACES
0.045 (1.14) TYP RECOMMENDED PCB PATTERN 0.120 (3.05) TYP Unless otherwise specified, dimensions are nominal and in inches (millimeters).