2809B 参数 Datasheet PDF下载

ISDN MAGNETICS

Global U Interface Transformer

TM00206

•

•

Meets the specifications for supplementary insulation per •

EN60950 with a working voltage of 250 V

•

UL, CSA, BABT and VDE approved

•

Operating temperature range is –40° C to +85° C

Qualified per Bellcore TR-TSY-000357-1

Minimum interwinding breakdown voltage of 3000 Vrms

ELECTRICAL SPECIFICATIONS at 25° C

DCR

Ω

max

Part Number

Turns Ratio

± 3%

Primary

Inductance

mH min

Leakage

Inductance

µ

H max

Pri

Interwinding

Capacitance

pF max

Sec

2809B

1.50 : 1.0

76

180

15.2

11.3

250

SCHEMATIC

Compatible Transceiver ICs

Part Number

IC Mfr

IC Part Number

2809B

1

10

9

2809B

Lucent

T7234

T7237

T7256

T7264

4

2

6

5

Primary

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 201-432-0463 • Fax 201-432-9542 • www.belfuse.com

T2-13