2741L2 Datasheet, PDF (1/2 Pages) Bel Fuse Inc. – HIGH FREQUENCY MAGNETICS Specialty Through Hole Shielded Transformer

HIGH FREQUENCY MAGNETICS
Specialty Through Hole Shielded Transformer
TM00103
• 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
• 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
ELECTRICAL SPECIFICATIONS AT 25° C
Part Number
Turns Ratio
±2%
(5-2) : (4-1)
Pri : Sec
Secondary
Inductance¹
µH Min
(4-1)
DCR
Ω
max
(5-2) (4-1)
Secondary
Leakage¹
Inductance µH
(4-1)
Interwinding & Winding
Shield Capacitance
pF max
(4-1) : 6² (4-1) : (5-2)³
Minimum
Interwinding
Breakdown
Voltage
Vrms
2741L2
1:2
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
1
6
1:2
©2000 Bel Fuse Inc. Specifications subject to change without notice. 09.00
Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com
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