K0900Y Datasheet, PDF (5/12 Pages) Littelfuse – SIDACs feature glass-passivated junctions to ensure a rugged and dependable

Teccor^® brand Thyristors
Standard Bidirectional SIDACs
Figure 13: Relaxation Oscillator Using a SIDAC
Figure 14: Low-voltage Input Circuit for Gas Ignition
(a) Circuit
VDC(IN) ≥ VB0
R
SIDAC
VC
VBO
VC
(b) Waveforms
t
C
IL
RL
IL
R _max ≤
VIN - VBO
IBO
t
Rmin≥
VIN - VTM
IH _(MIN)
10 μF
-+
50 V
4.7 μF
-+
100 V
+
-
24 V ac
60 Hz
4.7 μF
100 V
4.7 k
½W
1.2 μF
K1200E
Sidac
200 V
H.V.
Ignitor
Figure 15: Comparison of SIDAC versus SCR for Gas
Ignitor Circuit
Figure 16: Xenon Lamp Flashing Circuit
SCR
100-250 V ac
60 Hz
Sidac
100-250 V ac
60 Hz
100
-^{10 μ}+^F
2W
250 V
120 V ac
60 Hz
Xenon Lamp
+ _{10 μF}
- ^{450 V}
K2200G
4 kV
20 M
Sidac
200-
400 V
0.01 μF
400 V
Trigger
Transformer
20:1
Figure 17: Typical High-pressure Sodium Lamp Firing Circuit
Ballast
Ballast
Sidac
3.3 k
0.47 μF
400 V
Lamp
Sidac
7.5 k
0.22 μF
Lamp
120 V ac
60 Hz
16 mH
120 V ac
220 V ac
60 Hz
220 V ac
Kxxxzy Series
317
Revised:December21,2010 02:40PM
©2010 Littelfuse, Inc
Specifications are subject to change without notice.
Please refer to http://www.littelfuse.com for current information.