2809B Datasheet, PDF (1/2 Pages) Bel Fuse Inc. – ISDN MAGNETICS Global U Interface Transformer

ISDN MAGNETICS
Global U Interface Transformer
TM00206
• Meets the specifications for supplementary insulation per • Operating temperature range is –40° C to +85° C
EN60950 with a working voltage of 250 V
• Qualified per Bellcore TR-TSY-000357-1
• UL, CSA, BABT and VDE approved
• Minimum interwinding breakdown voltage of 3000 Vrms
ELECTRICAL SPECIFICATIONS at 25° C
Part Number
Turns Ratio
± 3%
Primary
Inductance
mH min
Leakage
Inductance
µH max
2809B
1.50 : 1.0
76
180
DCR
Ω
max
Pri
Sec
15.2
11.3
Interwinding
Capacitance
pF max
250
Part Number
2809B
Compatible Transceiver ICs
IC Mfr
Lucent
IC Part Number
T7234
T7237
T7256
T7264
SCHEMATIC
1
4
2
5
Primary
2809B
10
9
6
7
Secondary
©2000 Bel Fuse Inc. Specifications subject to change without notice. 10.00
Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com
T2-13