2745AM2 Datasheet, PDF (1/2 Pages) Bel Fuse Inc. – HIGH FREQUENCY MAGNETICS T3/E3/STS-1 Through Hole Transformer

HIGH FREQUENCY MAGNETICS
T3/E3/STS-1 Through Hole Transformer
TM00147
• Operates at pulse repitition rates of 30 Mb/s to 60
Mb/s (includes both the DS3 and the STS-1 rate)
• Has three separate windings which can be config-
ured for both 1:1 and 1:4 impedance ratios
• 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%
Inductance²
µH Min
(1-6):(2-5):(3-4)
(6-1)
DCR
Ω
max
(1-6)
(2-5)
(3-4)
2745AM2
1:1:1
65
0.2
1. measured at 100 kHz, 0.01 Vac, connect 2 to 4
2. measured at 10 kHz, 0.1 Vac
Leakage
Inductance¹
µH max
(3-5)
Interwinding
Capacitance
pF min
For 75Ω:75Ω
Configuration
Typical
Bandwidth
(3 dB)
Typical
Pulse Rise
Time
(10%-90%)
Minimum
Interwinding
Breakdown
Voltage
Vrms
0.3
15
40 kHz to
260 MHz
1.4 ns
1500
SCHEMATIC
2745AM2
6
5
4
1
2
3
5
6
2
4
1
3
©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
T1-111