2795G Datasheet, PDF (1/2 Pages) Bel Fuse Inc. – HIGH FREQUENCY MAGNETICS Miniature Dual Turns Ratio Surface Mount Transformers

HIGH FREQUENCY MAGNETICS
Miniature Dual Turns Ratio Surface Mount Transformers
TM00145
• Transformers provide a dual turns ratio for DS1,
CEPT 75 and CEPT 120 line interface functions
• Maximum inductance unbalance of center-tapped
winding is 0.2%
Metallic surge voltage capability for 2795Y is 5000V
peak
• Minimum interwinding breakdown voltage of 1500
Vrms
• 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
• For 2795T and 2795Y application note refer to document
TM00145B
ELECTRICAL SPECIFICATIONS at 25° C
• For 2795N application note refer to document TM00145A
Part Number
Turns Ratio
± 1%
Primary
Inductance¹
mH min
(4 - 1) : (3 - 6) (4 - 5) : (3 - 6)
(4 - 1)
Leakage
Inductance²
µH max
(4 - 1)
(4 - 5)
(4 - 5)
DCR
Ω
max
(4 - 1)
(3 - 6)
Interwinding
Capacitance
pF typ
2795G
1 : 1.14CT
1 : 1.35CT
1.8
---
0.8
1.8
2.2
2.5
35
2795N
1 : 1.070CT 1 : 1.353CT
1.7
0.6
0.5
1.7
2.2
2.3
36
2795T
1 : 1.89CT
1 : 2.40CT
1.3
0.6
0.45
1.4
1.8
3.3
47
Part Number (3 - 6) : (4 - 5) (3 - 6) : (4 - 1)
(3 - 6)
--
(4 - 5)
(4 - 1)
(3 - 6)
2795Y
1 : 1.89
1 : 2.39
1.6
0.3
--
0.8
1.1
0.3
43
1. Measured at 10 kHz, 0.1 Vac
2. Measured at 100 kHz, 0.1 Vac
SCHEMATICS
4
2795G
2795N
2795T
3
2795Y
3
4
2
2 CT
5
5
1
6
6
1
Note: Pins 2 and 3 must be connected externally.
©2000 Bel Fuse Inc. Specifications subject to change without notice. 07.00
Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com
T1-99