S402ES Datasheet, PDF (4/8 Pages) Littelfuse – Teccor brand Thyristors

Teccor^® brand Thyristors
Silicon Controlled Rectifiers
Figure 6: Surge Peak On-State Current vs. Number of Cycles
20
15
12
10
9
8
7
6
5
4
3
2
1
1
1.5 _{A Devices}
Supply Frequency: 60Hz Sinusoidal
Load: Resistive
RMS On-State Current [I_T(RMS)]: Max Rated Value at
Specific Case Temperature
Notes:
1. Gate control may be lost during and immediately
following surge current interval.
2. Overload may not be repeated until junction
temperature has returned to steady-state rated value.
2 3 4 5 6 7 8 9 10
20 30 40 60 80 100 200 300 400 600 1000
Surge Current Duration – Full Cycle
Soldering Parameters
Reflow Condition
Pb – Free assembly
- Temperature Min (T_s(min))
Pre Heat - Temperature Max (T_s(max))
- Time (min to max) (t_s)
Average ramp up rate (Liquidus Temp)
(T_L) to peak
T_S(max) to T_L - Ramp-up Rate
Reflow
- Temperature (T_L) (Liquidus)
- Time (min to max) (t_s)
Peak Temperature (T_P)
Time within 5°C of actual peak
Temperature (t_p)
Ramp-down Rate
Time 25°C to peak Temperature (T_P)
Do not exceed
150°C
200°C
60 – 180 secs
5°C/second max
5°C/second max
217°C
60 – 150 seconds
260^+0/-5 °C
20 – 40 seconds
5°C/second max
8 minutes Max.
280°C
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Power Thyristor Databook
Sx02xS EV Series 1.5 Amp Sensitive SCRs