DB3 [DCCOM]
TECHNICAL SPECIFICATIONS OF BIDIRECTIONAL DIODE THYRISTORS (DIACS); 双向二极管闸流体技术规范（ DIACS ）
| 型号： | DB3 |
| 厂家： | 
DC COMPONENTS |
| 描述： | TECHNICAL SPECIFICATIONS OF BIDIRECTIONAL DIODE THYRISTORS (DIACS) |
| 文件： | 总2页 (文件大小：170K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
DB3
THRU
DB4
DC COMPONENTS CO., LTD.
RECTIFIER SPECIALISTS
R
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
0.52Ø
25.0MIN
* Mounting position: Any
* Weight: 0.15 gram
4.2MAX
2.0MAX
25.0MIN
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%.
Dimensions in millimeters
PARAMETERS
SYMBOL
DB3
DB4
UNITS
VOLT
Min
28
32
36
35
40
45
Breakover Voltage
+VBO, -VBO
Typ
Max
VOLT
Max
VOLT
Min
Breakover Voltage Symmetry
Dynamic Breakback Voltage
(+VBO)-(-VBO)
VBO - VBR
+IBO, -IBO
IP
3
3
5
5
uA
Breakover Current
100
2.0
100
2.0
Max
AMP
Max
Peak Pulse Current for
10uS, 120pps, TA<=40oC
156
EXIT
NEXT
RATING AND CHARACTERISTIC CURVES ( DB3 THRU DB4 )
FIG.1-V-I CHARACTERISTICS CURRENT
FIG.2-REPETITIVE PEAK ON-STATE
CURRENT VS PULSE DURATION
2.0
BREAKOVER
VOLTAGE
PULSE REPEAT ON RATE =120 PPS
Tz=400C
1.0
0.7
0.5
0.3
D28 32 35 40&50
0.2
D60
0.1
.07
+5mA
.05
SAFE OPERATING
AREA
.03
+IBo
VOLTAGE
-VBo -VBR
.02
.01
+VBR
+VBo
-IBo
.007
.005
.003
.002
.001
-5mA
10
100
1000
10,000
FIG.4-TEST CIRCUIT WAVE FORMS
(SEE FIG.5)
FIG.3-NORMALIZED VBO CHANGE
VS JUNCTION TEMPERATURE
+8
+6
+4
+2
0
+V(BO)
aV+
D28
32
35
40 50
0
t
aV-
D60
-V(BO)
+IP
0
-2
-4
-6
-8
t
-IP
-40 -20
0
+20 +40 +60 +80 +100 +120 +140
FIG.5-CIRCUIT USED TO MEASURE
DIAC CHARACTERISTICS
RF
D.U.T.
200Ω
1%
Vc
0.1u f
120V
RMS
60Hz
*ADJUST FOR ONE FIRING IN HALF CYCLE
DC COMPONENTS CO., LTD.
R
157
EXIT
BACK
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