Teccor® brandThyristors
Standard Bidirectional SIDACs
Figure 15: Comparison of SIDAC versus SCR for Gas
Figure 16: Xenon Lamp Flashing Circuit
Ignitor Circuit
Xenon Lamp
100
2 W
10 μF
SCR
Sidac
-
+
250 V
20 M
K2200G
4 kV
+
-
10 μF
450 V
100-250 V ac
60 Hz
100-250 V ac
60 Hz
Sidac
120 V ac
60 Hz
0.01 μF
400 V
200-
400 V
Trigger
Transformer
20:1
Figure 17:Typical High-pressure Sodium Lamp Firing Circuit
Ballast
Ballast
0.47 μF
400 V
Sidac
Sidac
0.22 μF
Lamp
3.3 k
7.5 k
Lamp
120 V ac
60 Hz
220 V ac
60 Hz
16 mH
120 V ac
220 V ac
Soldering Parameters
Reflow Condition
Pb – Free assembly
tP
TP
-Temperature Min (Ts(min)
)
150°C
Ramp-up
TL
TS(max)
Pre Heat -Temperature Max (Ts(max)
-Time (min to max) (ts)
)
200°C
tL
60 – 190 secs
Ramp-down
Preheat
Average ramp up rate (LiquidusTemp)
(TL) to peak
5°C/second max
5°C/second max
TS(min)
tS
TS(max) toTL - Ramp-up Rate
-Temperature (TL) (Liquidus) 217°C
25
Reflow
time to peak temperature
-Temperature (tL)
60 – 150 seconds
260+0/-5 °C
Time
PeakTemperature (TP)
Time within 5°C of actual peak
Temperature (tp)
20 – 40 seconds
Ramp-down Rate
5°C/second max
8 minutes Max.
280°C
Time 25°C to peakTemperature (TP)
Do not exceed
Kxxxzy Series
©2008 Littelfuse, Inc.
313
Revised: July 9, 2008
Specifications are subject to change without notice.
Please refer to http://www.littelfuse.com for current information.