Application Specific Discretes

A.S.D

.™

SSRP130B1

®

Where asymmetrical protection against lightning

strikes and other transient overvoltages is required :

Solid-State relays

SLIC with integrated ring generator

MAIN APPICATIONS

SO8

The SSRP130B1 is a dual asymmetrical transient

voltage

suppressor

designed

to

protect

a

solid-state ring relay or SLICs with integrated ring

generator from overvoltages.

The asymmetrical protection configuration is

necessary to allow the use of all different types of

ringing schemes.

DESCRIPTION

FUNCTIONAL DIAGRAM

DUAL ASYMMETRICAL OVERVOLTAGE

PROTECTION FOR TELECOM LINE

July 1998 - Ed: 4A

1

2

3

4

5

6

8

GND

NC

NC

7

TIP

RING

GND

GND

GND

TM: ASD is trademarks of STMicroelectronics.

Dual bidirectional asymmetrical protection :

Stand-off voltages :

+ 130V for positive voltages

- 185V for negative voltages

µs)

Holding current : 150mA

FEATURES

COMPLIES WITH THE

FOLLOWING STANDARDS:

Peak Surge

Voltage

(V)

Voltage

Waveform

(

µs)

Current

Waveform

(

µs)

Admissible

Ipp

(A)

Necessary

Resistor

(

Ω)

ITU-T K20

1000

10/700

5/310

25

-

VDE0433

2000

10/700

5/310

25

40

VDE0878

1500

1.2/50

1/20

35

3

IEC 1000-4-5

Level 2

10/700

1.2/50

5/310

8/20

25

25

-

-

FCC Part 68

1500

800

10/160

10/560

10/160

10/560

29

21

45

30

BELLCORE TR-NWT-001089

2500

1000

2/10

10/1000

2/10

10/1000

70

15

30

57