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2786A: DescriptionMODEM MAGNETICS PCMCIA V.90 Transformers; File Size26KB，2 Pages; ManufacturerBel; Websitehttp://www.belfuse.com

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2786A Overview

MODEM MAGNETICS PCMCIA V.90 Transformers

2786A Preview

MODEM MAGNETICS

PCMCIA V.90 Transformers

•

Designed to match a 600Ω line to a 290Ω load while

providing isolation and balance in PCMCIA Type II

V.90 modem applications

Approved by UL and CSA

•

TM00404

Minimum interwinding breakdown voltage of 1000 Vrms

Qualified per Bellcore TR-TSY-000357-1

•

ELECTRICAL SPECIFICATIONS AT 25° C

Insertion

Loss

@ 1 kHz

Return Loss

Frequency

Response

200 Hz - 5 kHz

Pri

DCR

Ω

max

Sec

Harmonic

Distortion

-10 dBm,

600 Hz

> 85

Longitudinal

Balance

300 Hz - 3500 Hz

Part

Number

Turns Ratio

± 2%

300 Hz - 3500 Hz

2786A

1:1

< 2.9

> 30

< 0.1

165

200

> 60

2786A3

1:1

< 2.9

> 30

< 0.1

165

200

> 85

> 60

2786A5

1:1

< 2.9

> 30

< 0.1

165

200

> 85

> 60

SCHEMATIC

2786A

2786A3

2786A5

Primary

Secondary

TYPICAL SPICE TRANSMISSION MODEL

145

20 pF

1.4 mH

175

25 k

3.0 H

20 pF

Specifications subject to change without notice. 05.00

Bel Fuse Inc.

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

T4-9

MODEM MAGNETICS

TM00404

PCMCIA V.90 Transformers

MECHANICALS

0.560 [14.22]

max

2786A

0.330

[8.38] 0.200

max [5.08]

.025

[0.635]

Terminal 1

Identifier

0.040

[1.02]

ref

0.172

[4.37]

max

0.096 [2.44]

Note: Unless otherwise specified, dimensions

are nominal and in inches [millimeters].

0.750 [19.05] ref

2786A3

0.180 [4.57]

max

0.040

[1.02]

0.005

[0.127]

0.750

[19.05]

ref

2786A5

0.750 [19.05] ref

0.040

[1.02]

0.172 [4.37]

max

0.052 [1.32]

Specifications subject to change without notice. 05.00

CORPORATE

Bel Fuse Inc.

198 Van Vorst Street

Jersey City, NJ 07302

Tel 201-432-0463

Fax 201-432-9542

www.belfuse.com

FAR EAST

Bel Fuse Ltd.

8F / 8 Luk Hop Street

San Po Kong

Kowloon, Hong Kong

Tel 852-2328-5515

Fax 852-2352-3706

www.belfuse.com

EUROPE

Bel Fuse Europe Ltd.

Preston Technology Management Centre

Marsh Lane, Suite G7, Preston

Lancashire, PR1 8UD, U.K.

Tel 44-1772-556601

Fax 44-1772-888366

www.belfuse.com

T4-10

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2786A Related Products

	2786A	2786A3	2786A5
Description	MODEM MAGNETICS PCMCIA V.90 Transformers	MODEM MAGNETICS PCMCIA V.90 Transformers	MODEM MAGNETICS PCMCIA V.90 Transformers

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