2809B [BEL]

ISDN MAGNETICS Global U Interface Transformer; ISDN MAGNETICS全球U接口变压器


型号：	2809B
厂家：	BEL FUSE INC.
描述：	ISDN MAGNETICS Global U Interface Transformer ISDN MAGNETICS全球U接口变压器变压器综合业务数字网
文件：	总2页 (文件大小：29K)
中文：	中文翻译
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ISDN MAGNETICS

Global U InterfaceTransformer

TM00206

•

Meets the specifications for supplementary insulation per •

EN60950 with a working voltage of 250 V

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

•

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

DCR

Ω

Primary

Inductance

mH min

Leakage

Inductance

µH max

Interwinding

max

Turns Ratio

Part Number

Capacitance

± 3%

pF max

Pri

Sec

2809B

1.50 : 1.0

180

15.2

11.3

250

SCHEMATIC

Compatible Transceiver ICs

2809B

Part Number

IC Mfr

IC Part Number

T7234

T7237

T7256

T7264

2809B

Lucent

Primary

Secondary

Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com

T2-13

ISDN MAGNETICS

Global U InterfaceTransformer

TM00206

MECHANICAL

2809B

0.675

[17.14]

max

0.187

[4.74]

0.150[3.81]

0.110±0.01

[2.79 ±0.25]

0.975

[24.7]

max

0.855

[21.71]

max

0.725

[18.41]

0.023

[0.58]

Sq.

Note: Unless otherwise specified, dimensions

are nominal and in inches [millimeters].

CORPORATE

FAR EAST

EUROPE

Bel Fuse Inc.

Bel Fuse Ltd.

Bel Fuse Europe Ltd.

198 Van Vorst Street

Jersey City, NJ 07302

Tel 201-432-0463

Fax 201-432-9542

www.belfuse.com

8F / 8 Luk Hop Street

San Po Kong

Kowloon, Hong Kong

Tel 852-2328-5515

Fax 852-2352-3706

www.belfuse.com

PrestonTechnology Management Centre

Marsh Lane, Suite G7, Preston

Lancashire, PR1 8UD, U.K.

Tel 44-1772-556601

Fax 44-1772-888366

www.belfuse.com

T2-14

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