WEJ

ELECTRONIC

CO.,LTD

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

SILICON BIDIRECTIONAL DIAC

FEATURE

ABSOLUTE RATINGS(LIMITING VALUES)

Dimensions in inches and (millimeters)

1.083(27.5)

MIN

0.150(3.8)

MAX

0.020(0.52)

MAX

DIA

DO-35(GLASS)

1.083(27.5)

MIN

0.079(2.0)

MAX

DIA

Symbols

Parameters

Value

Units

DB3

DC34

DB4

DB6

150

2.0

2.0

2.0

16

mW

A

Pc

T

/T

STG

J

Power Dissipation on printed

Circuit(L=10mm)

Repetitive peak on-state

Current

Storage and Operating Junction Temperature

T = 50

A

tp=10 s

F=100Hz

-40 to+125/-40 to 110

ELECTRICAL CHARACTERISTICS

Symbols

Parameters

Value

Units

V

Breakover Voltage(Note2)

I + V

I-

BO

I - V

I

BO

I +

V I

tr

Breakover Voltage Symmetry

Dynamic Breakover Voltage(Note 1)

Test Conditions

Output Voltage (Note 1)

Breakwver Current(Note 1)

Rise Time (Note1)

Leakage Current(Note1)

C=22nF(Note2)

See diagram 1

C=22nF(Note2)

See diagram 1

I=(Iso to IF=10mA)

See Diagram 1

See Diagram 2

C=22nF(Note2)

See Diagram 3

max

see diagrom1

BO

Min

Typ

Max

28

32

36

30

34

38

35

40

45

56

60

70

Max

Min

Min

Max

Tip

Max

3

5

5

100

1.5

10

4

10

V

V

V

A

S

A

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

2.Connected in parallel with the devices.

+

_

+

_

DB3-DB6

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