SILICON BIDIRECTIONAL DIAC

FEATURES

ABSOLUTE RATINGS(LIMITING VALUES)

ELECTRICAL CHARACTERISTICS

The three layer, two terminal, axial lead, hermetically sealed diacs are

designed specifically for triggering thyristors. They demonstrate low breakover

current at breakover voltage as they withstand peak pulse current, The breakover

symmetry is within three volts. These diacs are

intended for use in thyrisitors phase control , circuits for lamp dimming, universal

motor speed control ,and heat control.

DB4 are bi-directional trigged diode designed to operate

in conjunction with Triacs and SCR's

Power Dissipation on Printed

Circuit(L=10mm)

Breakover Voltage (Note 2 )

Breakover Voltage Symmetry

C=22nF(Note 2)

See diagram 1

C=22nF(Note 2)

See diagram 1

C=22nF(Note 2)

Min

Min

Min

Typ

35

40

45

+3

5

100

1.5

10

Max

Max

Max

Max

Typ

I=(I to IF=10mA)

See Diagram 1

BO

See Diagram 2

See Diagram 3

V =0.5 V max

see diagram 1

BBO

Breakover Current (Note1)

Leakage Current (Note1)

Dynamic Breakover Voltage (Note1)

Rise Time (Note1)

Output Voltage (Note 1 )

mW

A

T=50 C

A

tp=10 s

F=100Hz

µ

Repetitive Peak on-state

Current

Storage and Operating Junction Temperature

-40 to+125/-40 to 110

C

V

V

V

V

µA

µS

µA

I +V

I-

BO

I + V I

tr

I - V

I

BO

DO-35(GLASS)

Dimensions in inches and (millimeters)

































2.0

2.0

2.0

16

150

2.Connected in parallel with the devices.

Wing Shing Computer Components Co., (H.K .)L td.

Tel: (852)2341 92 7 6

Fax : (852)27 9 7 8153

Homepage:

http: / / www.wingshing.com

E-mail:

ic@wingshing.com