Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
HIGH FREQUENCY MAGNETICS
©2000 Bel Fuse Inc. Specifications subject to change without notice. 09.00
TM00121
T1-47
T1/E1 Through Hole T ransformers
ELECTRICAL SPECIFICATIONS at 25° C
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rebmuNtraPleB rebmuNtraPleB
8827T021TPEC/57TPEC2FA54722AC5472
A9827T1SD2FA54723G5472
A0927T 1SD2FA54722JA5472
021TPEC/57TPEC/1T2FA54722AC5472
0367T
1SD3G54723G5472
1.57TPEC2JA54722JA5472
021TPEC/2.57TPEC2AC54722AC5472
8867T 1.57TPEC2JA54722JA5472
021TPEC/2.57TPEC2AC54722AC5472
9867T1SD3G54723G5472
0967T 8967T
1SD3G54723G5472
1.57TPEC2JA54722JA5472
021TPEC/2.57TPEC2AC54722AC5472
• Operates as a line-interface pulse transformer in DS1
and CEPT applications
• Desiged for automatic machine placement into
printed wiring boards
• Only difference between the 2745AJ and 2745AJ2 is
the terminal length
• Only difference between the 2745CA and 2745CA2
is the terminal length
2745CA
2745CA2
3
1
4
5
6
Primary Secondary
Primary Secondary
4
2
6
3
1
2745AJ
2745AJ2
SCHEMATICS
• 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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egakaeL ecnatcudnI µµ
µ
µµ xamH
RCDΩΩ
Ω
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gnidniwretnI nwodkaerB egatloV nimsmrV
dedleihS noisreV
ceS:irP irP ceS
JA5472TC70.1:10.18.005.000.1A/N058___
2JA5472TC70.1:10.18.005.000.1A/N058___
AC5472TC63.1:129.07.058.02.10200012H1472
2AC5472TC63.1:129.07.058.02.10200012H1472
caV1.0,zHk01taderusaeM*
CORPORATE
Bel Fuse Inc.
198 V an V orst Street
Jersey City, NJ 07302
Tel 201-432-0463
Fax 201-432-9542
www.belfuse.com
FAR EAST
Bel Fuse Ltd.
8F / 8 Luk Hop Street
San Po Kong
K owloon, Hong K ong
Tel 852-2328-5515
Fax 852-2352-3706
www.belfuse.com
EUROPE
Bel Fuse Eur ope Ltd.
Preston Technology Management Centre
Marsh Lane, Suite G7, Preston
Lancashire, PR1 8UD, U.K.
Tel 44-1772-556601
Fax 44-1772-888366
www.belfuse.com
©2000 Bel Fuse Inc. Specifications subject to change without notice. 09.00
TM00121
T1-48
HIGH FREQUENCY MAGNETICS
T1/E1 Through Hole T ransformers
MECHANICAL
2745AJ2
2745CA2
2745AJ
2745CA
0.56 (14.22)
MAX
0.46 (11.68)
MAX
TERMINAL 1
IDENTIFIER
0.023 (0.584) SQ TYP
(PHOSPHOR BRONZE,
SOLDER COATED)
0.35 (8.89)
MAX
0.155 (3.94)
0.150
(3.81)
0.250
(6.35)
123
654
0.56 (14.22)
MAX
0.46 (11.68)
MAX
TERMINAL 1
IDENTIFIER
0.023 (0.584) SQ TYP
(PHOSPHOR BRONZE,
SOLDER COATED)
0.35 (8.89)
MAX
0.110 (2.79)
±0.010 (0.25) 0.150
(3.81)
0.250
(6.35)
123
654
Unless otherwise specified, dimensions are nominal and in inches (millimeters).
