8700 E. Thomas Road

Scottsdale, AZ 85252

(480) 941-6300

CASE: Molded plastic, meets UL 94V-O

POLARITY: Cathode marked with +

INDUCTANCE: Less than 20 nH

TERMINALS: Corrosion resistant with hole spacings

to accommodate most high power IGBTs

IGB

TVS

TM

AC LINE

TRANSIENT

VOLTAGE

SUPPRESSOR

(FOR IGBT PROTECTION)

Santa Ana: (714) 979-8220

Scottscale: (602) 941-6300

Colorado: (303) 469-2161

Watertown: (617) 926-0404

Chatsworth: (818) 701-4933

Sertech Labs: (617) 924-9280

Ireland: (353) 65-40044

Bombay: (91) 22-832-002

Hong Kong: (852) 2692-1202

Features

These devices will protect your IGBT in applications where it is

used in overload protection or switching ac loads. Transient

voltages produced when switching occurs in the positive one-half

of the cycle are clamped below the destruct level of the IGBT.

Unique low inductance shunt path virtually eliminates L(di/dt)

effects. Available as screened device for high reliability

applications. Includes burn-in and environmental tests.

Maximum Ratings @ 25°C

Electrical Characteristics @ 25°C

MSC

IGBT

d

1.00

2.54

0.5

1.25

0.5

1.25

.375

.952

2.00

5.08

+

Hole to

fit 8mm

dia. stud

Dimensions: inches/centimeters

d – Terminals accommodate

23 -28 mm spacing

AC rms

REVERSE

BREAKDOWN

MAXIMUM

MAXIMUM

MAXIMUM

MICROSEMI

OPERATING

STAND-OFF

VOLTAGE

REVERSE

CLAMPING

PEAK PULSE

PART NO.

VOLTAGE

NOTE 1

MIN / MAX

LEAKAGE

VOLTAGE

CURRENT

NOMINAL

Vac

Vdc

V

µA

V

A

DMA12

120

175

200 / 225

5

280

200

DMA24

240

350

400 / 450

5

560

200

DMA44

440

640

735 / 900

5

1120

200

Notes:

1.Will withstand high-line conditions of 15% above nominal

voltage.

2.Test current @ 10 mA.

3.Pulse waveform – 1.2 / 50 µs.

Data Sheet MSC0294A 6/3/97