TPA SERIES

BIDIRECTIONAL CROWBAR PROTECTION.

VOLTAGE RANGE: FROM 62 V TO 270 V.

HOLDING CURRENT :

REPETITIVE PEAK PULSE CURRENT :

µs.

FEATURES

F126

The TPA series are TRISIL devices especially de-

signed for protecting sensitive telecommunication

equipment against lightning and transient voltages

induced by AC power lines. They are available in

the F126 axial package.

TRISIL devices provide bidirectional protection

by crowbar action. Their characteristic response

to transient overvoltages makes them particularly

suited to protect voltage sensitive telecommuni-

cation equipment.

DESCRIPTION

SCHEMATIC DIAGRAM

TRISIL

™

COMPLIES WITH THE

FOLLOWING STANDARDS:

Peak Surge

Voltage

(V)

Voltage

Waveform

(

µs)

Current

Waveform

(

µs)

Admissible

Ipp

(A)

Necessary

Resistor

(

Ω)

(CCITT) ITU-K20

1000

10/700

5/310

25

-

(CCITT) ITU-K17

1500

10/700

5/310

38

-

VDE0433

2000

10/700

5/310

50

-

VDE0878

2000

1.2/50

1/20

50

-

IEC-1000-4-5

level 3

level 4

10/700

1.2/50

5/310

8/20

50

100

-

-

FCC Part 68, lightning surge

type A

1500

800

10/160

10/560

10/160

10/560

75

55

12.5

6.5

FCC Part 68, lightning surge

type B

1000

9/720

5/320

25

-

BELLCORE TR-NWT-001089

First level

2500

1000

2/10

10/1000

2/10

10/1000

150

50

11.5

10

BELLCORE TR-NWT-001089

Second level

5000

2/10

2/10

150

11.5

CNET l31-24

1000

0.5/700

0.8/310

25

-

®

October 1998 - Ed: 9A

1/5