CORPORATE

Bel Fuse Inc.

206 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

HIGH FREQUENCY MAGNETICS

©2005 Bel Fuse Inc.

Specifications subject to change without notice. 05.05

TM01108

page 2

T1/E1 Octal Transformer Modules

0.950

[24.13]

0.265

[6.73]

ref

0.295 [7.49]

max

0.035

[0.89]

0.005

[0.13]

min

0˚- 5˚

ø0.005

[0.13]

ø0.015

[0.39]

Dimensions are in inches [millimeters].

Standard dimension tolerance is ±0.005 [0.13] unless otherwise noted.

0.600

[15.24]

0.004 [0.10]

MECHANICAL

S553-6500-E3

S553-6500-E4

Tape and Reel Packaging

44 mm wide by 24 mm pitch; 13 inch OD, 6 inch ID

200 modules per reel, maximum

Meets ANSI/EIA 481-2 Carrier Tape Standards - JEDEC SO Package

0.480

[12.19]

0.070

[1.78]

ref

1.100

[27.94]

max

0.050 [1.27]

0.020 ±0.002

[0.51 ±0.05]

0.070

[1.78]

0.050 [1.27]

0.030 [0.77]

0.645

[16.38]

Suggested PCB Pad Layout

0.950

[24.13]

0.212

[5.38]

ref

0.225

[5.72]

max

0.035

[0.89]

0.005

[0.13]

min

0˚- 5˚

ø0.005

[0.13]

ø0.015

[0.39]

0.600

[15.24]

0.004 [0.10]

S553-6500-E3

S553-6500-E4

S553-6500-E4 Surge Protection Devices

TVS Diode Array: Semtech SRDA3.3-4

Number of Arrays: 4

Note: Surge protection provided by the Bel

module is equivalent to that advertised in the

Semtech SRDA3.3-4 product specification.