DB3.pdf 데이터시트 (총 2 페이지) - 파일 다운로드 DB3 데이타시트 다운로드

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DC COMPONENTS CO., LTD.
R RECTIFIER SPECIALISTS
DB3
THRU
DB4
TECHNICAL SPECIFICATIONS OF BIDIRECTIONAL DIODE THYRISTORS (DIACS)
FEATURES
* Glass passivalted three-layer for triggering thyristors.
* Low breakover current at breakover voltage.
* For use in thyristor phase-control circuit for lampdimming,
universal-motor speed control and heat controls.
DO-35
MECHANICAL DATA
* Case: Glass sealed case
* Lead: MIL-STD-202E, Method 208 guaranteed
* Mounting position: Any
* Weight: 0.15 gram
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25 oC ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
PARAMETERS
Breakover Voltage
Breakover Voltage Symmetry
Dynamic Breakback Voltage
Breakover Current
Peak Pulse Current for
10uS, 120pps, TA<=40oC
SYMBOL
+VBO, -VBO
(+VBO)-(-VBO)
VBO - VBR
+IBO, -IBO
IP
25.0MIN
0.52Ø
4.2MAX
2.0MAX
25.0MIN
DB3
28
32
36
3
5
100
2.0
Dimensions in millimeters
DB4
35
40
45
3
5
100
2.0
UNITS
VOLT
Min
Typ
Max
VOLT
Max
VOLT
Min
uA
Max
AMP
Max
156
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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
0t
-IP
FIG.5-CIRCUIT USED TO MEASURE
DIAC CHARACTERISTICS
RF
Vc
120V
RMS
60Hz
D.U.T.
0.1u f
200
1%
*ADJUST FOR ONE FIRING IN HALF CYCLE
DC COMPONENTS CO., LTD.
R
157
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