DB3 Datasheet, PDF (2/2 Pages) STMicroelectronics – TRIGGER DIODES

RATING AND CHARACTERISTIC CURVES ( DB3 THRU DB4 )
FIG.1-V-I CHARACTERISTICS CURRENT
BREAKOVER
VOLTAGE
+5mA
+IBo
-VBo -VBR
VOLTAGE
-IBo ^{+VBR +VBo}
-5mA
FIG.2-REPETITIVE PEAK ON-STATE
CURRENT VS PULSE DURATION
2.0
PULSE REPEAT ON RATE =120 PPS
1.0
0.7
Tz=40⁰C
0.5
0.3
D28 32 35 40&50
0.2
D60
0.1
.07
.05
.03
SAFE OPERATING
.02
AREA
.01
.007
.005
.003
.002
.001
10
100
1000
10,000
FIG.3-NORMALIZED VBO CHANGE
VS JUNCTION TEMPERATURE
+8
+6
D28 32 35 40 50
+4
+2
D60
0
-2
-4
-6
-8
-40 -20
0 +20 +40 +60 +80 +100 +120 +140
FIG.4-TEST CIRCUIT WAVE FORMS
(SEE FIG.5)
+V(BO)
0
-V(BO)
aV+
t
aV-
+IP
0
t
-IP
FIG.5-CIRCUIT USED TO MEASURE
DIAC CHARACTERISTICS
RF
Vc
120V
RMS
60Hz
D.U.T.
0.1u f
200Ω
1%
*ADJUST FOR ONE FIRING IN HALF CYCLE
DC COMPONENTS CO., LTD.
R
157
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