DMA44 datasheet(1/2 Pages) MICROSEMI

部件名	DMA44

功能描述	IGBTVSTM AC LINE TRANSIENT VOLTAGE SUPPRESSOR

PDF	2 Pages

Scroll/Zoom	100%

制造商	MICROSEMI [Microsemi Corporation]

网页	http://www.microsemi.com

标志

1 / 2 page

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

• Protects From Load Switching In AC Applications

• For 120Vac, 240Vac and 440Vac Circuits

• Fits Terminal Spacing on Most IGBTs

• Fast Clamping – Subnanosecond

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

• 60kw peak pulse power dissipation for 120V @ 1.2/50µs

• 120kw peak pulse power dissipation for 240V @ 1.2/50µs

• 240kw peak pulse power dissipation for 440V @ 1.2/50µs

• Operating and storage -55°C to +150°C

• Shunt path inductance < 20nH

• Duty cycle – .01% max.

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

MICROSEMI

OPERATING

STAND-OFF

VOLTAGE

REVERSE

CLAMPING

PEAK PULSE

PART NO.

VOLTAGE

NOTE 1

MIN / MAX

LEAKAGE

VOLTAGE

CURRENT

NOMINAL

(VWM)(VBR) NOTE 2

(ID)(VC)(IPP) NOTE 3

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

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