R

DC COMPONENTS CO., LTD.

RATING AND CHARACTERISTIC CURVES ( DB3 THRU DB4 )

200

Ω

1%

FIG.1-V-I CHARACTERISTICS CURRENT

BREAKOVER

VOLTAGE

VOLTAGE

+VBo

+VBR

-IBo

-5mA

+5mA

+IBo

-VBo

-VBR

FIG.2-REPETITIVE PEAK ON-STATE

CURRENT VS PULSE DURATION

PULSE REPEAT ON RATE =120 PPS

Tz=40

D60

2.0

1.0

0.7

0.5

0.3

0.2

0.1

.07

.05

.03

.02

.01

.007

.005

.003

.002

.001

D28 32 35 40&50

SAFE OPERATING

AREA

10

100

1000

10,000

FIG.5-CIRCUIT USED TO MEASURE

DIAC CHARACTERISTICS

RF

D.U.T.

0.1u f

Vc

120V

RMS

60Hz

*ADJUST FOR ONE FIRING IN HALF CYCLE

FIG.4-TEST CIRCUIT WAVE FORMS

(SEE FIG.5)

aV+

aV-

+V(BO)

-V(BO)

0

t

0

+IP

-IP

t

FIG.3-NORMALIZED VBO CHANGE

VS JUNCTION TEMPERATURE

+8

+6

+4

+2

0

-2

-4

-6

-8

-40

-20

0

+20

+40

+60

+80 +100 +120 +140

D28

32

35

40

50

D60

157

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