5KP5.0 thru 5KP188A

Vishay General Semiconductor

www.vishay.com

For technical questions within your region, please contact one of the following:

PDD-Americas@vishay.com, PDD-Asia@vishay.com, PDD-Europe@vishay.com

Document Number: 88308

Revision: 21-Oct-08

5

PACKAGE OUTLINE DIMENSIONS in inches (millimeters)

APPLICATION NOTE

The 5KP series of high power transient voltage

suppressors were designed to be used on the output

of switching power supplies. These devices may be

used to replace crowbar circuits. Both the 5 % and

10 % voltage tolerances are referenced to the power

supply output voltage level.

They are able to withstand high levels of peak current

while allowing a circuit breaker to trip or a fuse blow

before shorting. This will enable the user to reset the

breaker or replace the fuse and continue operation.

For this type operation, it is recommended that a

sufficient mounting surface be used for dissipating the

heat generated by the Transient Voltage Suppressor

during the transient or over-voltage condition.

Figure 5. Power Derating Curve

L = 0.375" (9.5 mm)

Lead Lengths

60 Hz

Resistive or

Inductive Load

8

6

4

2

0

0

25

50

75

100

125

150

175

200

Figure 6. Maximum Non-repetitive Forward Surge Current

1

10

100

200

300

400

500

450

350

250

8.3 ms Single Half Sine-Wave

Number of Cycles at 60 Hz

0.360 (9.1)

0.340 (8.6)

0.052 (1.32)

0.048 (1.22)

DIA.

1.0 (25.4)

MIN.

0.360 (9.1)

0.340 (8.6)

1.0 (25.4)

MIN.

Case Style P600