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| SXX40R Datasheet, PDF (5/8 Pages) Littelfuse – Excellent unidirectional switches for phase control applications | |||
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Teccor® brand Thyristors
40 Amp Standard SCRs
Figure 12: Surge Peak On-State Current vs. Number of Cycles
1000
100
SUPPLY FREQUENCY: 60 Hz Sinusoidal
LOAD: Resistive
RMS On-State Current: [IT(RMS)]: Maximum Rated
Value at Specified Case Temperature
Notes:
1. G ate control may be lost during and immediately
following surge current interval.
2. O verload may not be repeated until junction
temperature has returned to steady-state
rated value.
10
1
10
100
1000
Surge Current Duration -- Full Cycles
Soldering Parameters
Reflow Condition
Pb â Free assembly
- Temperature Min (Ts(min))
Pre Heat - Temperature Max (Ts(max))
- Time (min to max) (ts)
Average ramp up rate (Liquidus Temp)
(TL) to peak
TS(max) to TL - Ramp-up Rate
Reflow
- Temperature (TL) (Liquidus)
- Temperature (tL)
Peak Temperature (TP)
Time within 5°C of actual peak
Temperature (tp)
Ramp-down Rate
Time 25°C to peak Temperature (TP)
Do not exceed
150°C
200°C
60 â 180 secs
5°C/second max
5°C/second max
217°C
60 â 150 seconds
260+0/-5 °C
20 â 40 seconds
5°C/second max
8 minutes Max.
280°C
TP
TL
TS(max)
TS(min)
Ramp-up
Preheat
tS
25
time to peak temperature
tP
tL
Ramp-down
Time
Sxx40x Series
291
Revised: November 1, 2010 05:04 PM
©2010 Littelfuse, Inc
Specifications are subject to change without notice.
Please refer to http://www.littelfuse.com for current information.
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