2741P2 Datasheet, PDF (1/2 Pages) Bel Fuse Inc. – HIGH FREQUENCY MAGNETICS Specialty Through Hole Shielded Transformer

HIGH FREQUENCY MAGNETICS
Specialty Through Hole Shielded Transformer
TM00105
• Operates as high frequency pulse transformer or as
high frequency analog transformer in various
telecom circuits requiring very high voltage step-up
ratio
• Interwinding Electrostatic Shield provides low
capacitance and high EMI suppression
• Electrical equivalents: 2664F, 2779A
• 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
±1%
(3-7) : (2-1)¹
Inductance²
µH Min
DCR
Ω
max
Leakage
Inductance²
µH max
Interwinding Capacitance
pF max
(2-5)
(3-8)(4-7)(2-1)³
(3-7)¹
(3-8) to 6⁴ (4-7) to 6⁴ (3-7) : (2-1)⁵
Minimum
Interwinding
Breakdown
Voltage
Vrms
2741P2
1 CT : 25 CT
300
1.92
0.2
5
5
5
500
1. connect 4 to 8
2. measured at 100kHz, 0.02 Vac
3. connect 4 to 8 & 2 to 7
4. with (2-1) grounded
5. with 6 grounded and 4 connected to 8
SCHEMATIC
3
8
CT
4
7
2741P2
2
5 CT
1
6
1 : 25
©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
T1-11