defining a degree of excellence
ISDN “U” INTERFACE TRANSFORMERS
0559-6204-00 and 0559-6204-01
TM0035
* Dielectric Strength - 1500 Vrms measured Primary to
Secondary. Meets or exceeds requirements of
CAN/CSA-C22.2No.225(M90)&
Bel introduces a new ISDN “U” Interface
transformer. The transformer is designed
to be used with the Motorola ISDN "U"
Interface Chip MC145572.
UL Std. No. 1950 2nd ed.
* Part Number 0559-6204-00 varies only in its additional
insulation.
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
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
NOTE: For Part Number
0559-6204-00 only, there is
additional insulation here.
(P.C. Pattern, Component Side)
SCHEMATIC
0.80(20.32)
0.060" Typ
1
9
2
4
Secondary
Primary
8
0.150"
Typ
7
5
ELECTRICALS @ 25O C.
Turns
Ratio
(+/- 1%)
Primary to
Secondary
Leakage
Inductance
(µH) Max
Primary
Inductance
(mH) Min-Max
Pins (1-5) tie
Pins (2-4)
Interwinding
Capacitance
(pF) Typ
DCR
(Ω) Max
DC in
Primary
(mA) Max
Part
Number
Pins
Pins
Pins (7-9)
Pins (1,2,4,+5) Shorted
Primary to
Secondary
(1-5)
(7-9)
0559-6204-00
0559-6204-01
60
1.25:1
26.5-30.0
150
8
12
28.0
Primary Inductance is measured at 100mV @ 1kHz, 0 & 60mADC. Leakage Inductance is measured at 100kHz, 0.01VAC.
Interwinding Capacitance is measured 10kHz, 1.0V.
Corporate Office
Bel Fuse Inc.
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
Far East Office
Bel Fuse Ltd.
8F/8 Luk Hop Street
San Po Kong
Kowloon, Hong Kong
Tel: 852-2328-5515
Fax: 852-2352-3706
European Office
Bel Fuse Europe Ltd.
Preston Technology Management Centre
Marsh Lane, Preston PR1 8UD
Lancashire, U.K.
Tel: 44-1772-556601
Fax: 44-1772-888366
T304
