defining a degree of excellence
ISDN “U” INTERFACE TRANSFORMERS
0559-5683-00
TM0047
* Dielectric Strength - 1000 Vrms measured
Bel introduces a new ISDN “U” Interface
transformer.
Primary to Secondary.
MECHANICALS
1.07(27.18)
PLACEMENT
Max
0.10(2.52)
0.47(11.94)
Max
Notch locates
terminal#1
0.90(22.86)
Min
Ref
10
bel Date Code
2
3
9
8
0.920(23.37)
Max
4
5
7
Part Number
6
Terminal
numbers are for
reference only
Dimensions in inches (mm)
Dimension tolerance +/- 0.015(0.25)
unless otherwise stated
True Postion Grid
0.020" x 0.040"
Typical
(P.C. Pattern, Component Side)
SCHEMATIC
0.80(20.32)
0.060" Typ
1
9
6
Secondary
Primary
3
10
0.150"
Typ
7
5
ELECTRICALS @ 25oC
Turns
Ratio
Leakage
Inductance
(µH) Max
Pins (4-7 to 6 to 10)
Pins (1-5) Shorted
Secondary
Inductance
(mH) Min-Max
DC in
Primary
(mA) Max
DCR
(Ω) +/- 10%
Part
Number
(+/- 1%)
Pins
(1-5)
Primary to
Secondary
Pins (7-9) tie
Pins (6 to 10)
Pins
(7-9)
0559-5683-00
77-86
100-172
30
1:1.5
19.8 15.7
Primary Inductance is measured at 100mV @ 1kHz, 30mADC. Leakage Inductance is measured at 100kHz, 0.01VAC.
Corporate Office
Bel Fuse Inc.
Far East Office
Bel Fuse Ltd.
European Office
Bel Fuse Europe Ltd.
198 Van Vorst Street, Jersey City, NJ 07302-4496
Tel: 201-432-0463
Fax: 201-432-9542
E-Mail: BelFuse@belfuse.com
Internet: http://www.belfuse.com
8F/8 Luk Hop Street
San Po Kong
Kowloon, Hong Kong
Tel: 852-2328-5515
Fax: 852-2352-3706
Preston Technology Management Centre
Marsh Lane, Preston PR1 8UD
Lancashire, U.K.
Tel: 44-1772-556601
Fax: 44-1772-888366
T306
