CE

DB3/DC34/DB4/DB6

CHENYI ELECTRONICS

SILICON BIDIRECTIONAL DIAC

FEATURES

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(DB3,DC34,DB4)or four volts(DB6).These diacs are

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

motor speed control, and heat control.

JF's DB3/DC34/DB4/DB6 are bi-directional trigged diode designed to operate

in conjunction with Triacs and SCR's

ABSOLUTE RATINGS(LIMITING VALUES)

DB3

DC34

DB4

DB6

Power Dissipation on Printed

Circuit(L=10mm)

Repetitive Peak in-state

tp=10u s

Current

F=100Hz

Storage and Operating Junction Temperature

ELECTRCAL CHARACTERISTICS

DB3

DC34

DB4

DB6

c=22nF(Note 2)

Min

28

30

35

56

See diagram1

Typ

32

34

40

60

Max

36

38

45

70

|+VBO|-

c=22nF(Note 2)

|-VBO|

See diagram1

I=(

See diagram1

Vo

See diagram2

Min

V

IBO

c=22nF(Note 2)

Max

A

tr

See Diagram 3

Typ

S

see diagram 1

Notes: 1. Electrical characteristics applicable in both forward and reverse directions.

2. Connected in parallel with the devices.

Parameters

Symbols

Units

2.0

2.0

1.6

Value

Symbols

Parameters

-40 to +125/-40 to 110

mW

A

TA=50

150

2.0

VBO

Breakover Voltage(Note 2)

Output Voltage(Note 1)

Breakover Current(Note 1)

Max

|

V|

IB

Leakage Current(Note 1)

Rise Time(Note 1)

Value

Dynamic Breakover

Voltage(Note 1)

Breakover Voltage Symmetry

Units

3

4

5

Test Conditions

Max

Min

10

10

V

V

V

A

5

100

1.5

Copyright @ 2000 SHANGHAI CHENYI ELECTRONICS CO.,LTD

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