SIDAC-95-330V Datasheet, PDF (6/6 Pages) Zibo Seno Electronic Engineering Co.,Ltd – SIDAC

Z ibo Seno Electronic Engineering Co., Ltd.
Electrical Specifications
SIDAC
100-250
VAC
60 Hz
PUSH
TO
TEST
S1
S1
SWITCH TO TEST IN
EACH DIRECTION
IPK
100 Ω
1%
DEVICE
UNDER
TEST
IH
TRACE STOPS
SCOPE
SCOPE INDICATIONS
100-250
VAC
60 Hz
VBO
IH
VBO
VBO
LOAD
˚ ^120-145
CONDUCTION
ANGLE
IH
IH
LOAD CURRENT
Figure 9.14 Dynamic Holding Current Test Circuit for Sidacs
Figure 9.15 Basic Sidac Circuit
(a) Circuit
VDC(IN) ≥ VB0
R
SIDAC
VC
VBO
VC
(b) Waveforms
t
C
IL
RL
IL
Rmax ≤
VIN - VBO
IBO
t
Rmin _≥
VIN - VTM
IH _(MIN)
Figure 9.16 Relaxation oscillator Using a Sidac
INPUT
(See Note B)
2N6127
RBB1 ₌
(or equivalent) 150Ω
50Ω
50Ω
RBB2 ₌
100Ω
VBB1 =10 V
+ ^{VBB2 =0}
-
TEST CIRCUIT
VCE MONITOR
INPUT
VOLTAGE
0V
TIP-47
VCC = 20 V
RS = 0.1 Ω
100 mH
5V
COLLECTOR
CURRENT
0.63 A
0
+
IC MONITOR ^{SIDAC VBO}
-
COLLECTOR
VOLTAGE
10 V
VCE(sat)
tw ≈ 3 ms
(See Note A)
tw
100 mS
VOLTAGE AND CURRENT WAVEFORMS
NOTE A: Input pulse width is increased until ICM = 0.63A.
NOTE B: Sidac (or Diac or series of Diacs) chosen so that VBO is just below VCEO rating of transistor to be protected.
The Sidac (or Diac) eliminates a reverse breakdown of the transistor in inductive switching circuits where otherwise the
transistor could be destroyed.
Figure 9.17 Sidac Added to Protect Transistor for Typical Transistor Inductive Load Switching Requirements
SIDAC
6 of 6
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