Features

Low leakage

Low forward voltage drop

High current capability

High forward surge current capability

Mechanical Data

Case: transfer molded plastic

Technology: vcauum soldered

Polarity: color ring denotes cathode

Lead: Plated lead, solderable per MIL-STD-202E method 208C

Mounting position: Any

Weigth: AR 1.80 grams, ARS 1.60 grams

Maximum Ratings and Electrical Charactristics

Rating at 25

Single phase, half wave, 60Hz, resistive or inductive load

For capacitive load derate current by 20%

Parameters

Symbols

AR251

ARS251

AR252

ARS252

AR253

ARS253

AR254

ARS254

AR256

ARS256

Units

Maximum repetitive peak reverse voltage

100

200

300

400

600

Volts

Maximum RM S voltage

70

140

210

280

420

Volts

Maximum DC blocking voltage

100

200

300

400

600

Volts

Maximum Average rectified forward current

25

Amps

Peak forward surge current 8.3mS single

half sine-wave superimposed on rated load

(JE DEC Method)

400

Amps

Rating for fusing(t<8.3ms)

I

664

A

Maximum instantaneous forward voltage

drop at 100A

1.1

Volts

5.0

uA

450

Typical thermal resistance

1.0

Operating and storage temperature

-65 to +175

Notes: 1.Enough heatsink must be considered in application.

AR251/ARS251

THRU

AR256/ARS256

BUTTON DIODES

VOLTAGE RANGE

100 TO 600 VOLTS

CURRENT 25AMPS

Dimensions in inches and millimeters

.185(4.7)

.165(4.2)

.225(5.7)

.215(5.5)

.250(6.4)

.235(6.0)

.410(10.4)

.380( 9.7)

DIA

DIA

.185(4.7)

.165(4.2)

.225(5.7)

.215(5.5)

.250(6.4)

.235(6.0)

.346(8.8)

.327(8.2)

DIA

DIA

AR

ARS

KI SEMICONDUCTOR

KI SEMICONDUCTOR