HIGH FREQUENCY MAGNETICS
Specialty Through Hole Shielded Transformer
TM00103
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Operates as a high frequency pulse transformer in
telecom switching systems at various signaling rates
Interwinding Electrostatic Shield provides low
capacitance and high EMI suppression
Electrical equivalents: 2664A and 2779D
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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
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ELECTRICAL SPECIFICATIONS AT 25° C
Secondary
Inductance
1
µH Min
DCR
Ω
max
Secondary
Leakage
1
Inductance µH
Interwinding & Winding
Shield Capacitance
pF max
Turns Ratio
±2%
Part Number
(5-2) : (4-1)
Pri : Sec
2741L2
1:2
(4-1)
(5-2)
(4-1)
(4-1)
(4-1) : 6
2
(4-1) : (5-2)
3
Minimum
Interwinding
Breakdown
Voltage
Vrms
1.58
2.05
3.30
8.5 max
6.5 min
12
3
500
1.measured at 100 kHz, 0.05 Vac
2. with (5-2) grounded
3. with 6 grounded
SCHEMATIC
2741L2
S
5
4
2
6
1:2
1
©2000 Bel Fuse Inc. Specifications subject to change without notice. 09.00
Bel Fuse Inc.
198 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
T1-7
BEL [ BEL FUSE INC. ]
