Application Specific Discretes

A.S.D.

™

THDT58S1

THDT58S

CROWBAR PROTECTION

DUAL ASYMMETRICAL TRANSIENT

SUPPRESSOR

PEAK PULSE CURRENT :

µs for THDT58S.

µs for THDT58S1.

HOLDING CURRENT = 150 mA min

BREAKDOWN VOLTAGE = 58 V.

BREAKOVER VOLTAGE = 80V max

FEATURES

SIP 3

This device has been especially designed to

protect subscriber line card interfaces (SLIC)

against transient overvoltages.

Its ion-implanted technology confers its excellent

electrical characteristics.

This is why this device easily fulfils the main

protection standards which are related to the

overvoltages suppression on telecom lines.

The product pinout is compatible with TO202 and

TO220 packages.

DESCRIPTION

1

2

3

4

NC

Tip

Ring

GND

SCHEMATIC DIAGRAM

TRANSIENT VOLTAGE SUPPRESSOR

FOR SLIC PROTECTION

February 1998 - Ed: 3

CCITT K20 :

10/700

µs

1kV

5/310

µs

25A

VDE 0433 :

10/700

µs

2kV

5/200

µs

45/50A(*)

VDE 0878 :

1.2/50

µs

1.5kV

1/20

µs

40A

CNET I3124:

0.5/700

µs

1kV

0.2/310

µs

25A

BELLCORE

TR-NWT-001089 :

10/1000

µs

1kV

10/1000

µs

35/75A (*)

(*) with series resistors or PTC.

COMPLIESWITH THE FOLLOWING STANDARDS :

TM: ASD is trademarks of SGS-THOMSON Microelectronics.

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