Littelfuse Kxxx0yH Series - Manual (Page 4)

4
Revised: 12/26/13
©2013 Littelfuse, Inc
Specifications are subject to change without notice.
Teccor ® brand Thyristors
High Energy Bidirectional SIDACs
Kxxx0yH Series
VDC(IN) ≥ VB0 VC
IL
RL
R
SIDAC
(a) Circuit
Rmax ≤
VIN - VBO
IBO
Rmin ≥
VIN - VTM
IH (MIN)
(b) Waveforms VBO
VC
IL
t
t
C
Figure 13: Relaxation Oscillator Using a SIDAC Figure 14: General Gas Ignitor Circuit
100-250 V ac
60 Hz
100-250 V ac
60 Hz
SCR Sidac
Soldering Parameters
Reflow Condition Pb – Free assembly
Pre Heat
- Temperature Min (T
s(min)
) 150°C
- Temperature Max (T
s(max)
) 200°C
- Time (min to max) (t
s
) 60 – 180 secs
Average ramp up rate (Liquidus Temp)
(T
L
) to peak
5°C/second max
T
S(max)
to T
L
- Ramp-up Rate 5°C/second max
Reflow
- Temperature (T
L
) (Liquidus) 217°C
- Temperature (t
L
) 60 – 150 seconds
Peak Temperature (T
P
) 260 +0/-5 °C
Time within 5°C of actual peak
Temperature (t
p
)
20 – 40 seconds
Ramp-down Rate 5°C/second max
Time 25°C to peak Temperature (T
P
) 8 minutes Max.
Do not exceed 280°C
Time
Temperature
T
P
T
L
T
S(max)
T
S(min)
25
t
P
t
L
t
S
time to peak temperature
Preheat Preheat
Ramp-up Ramp-up
Ramp-down Ramp-do