Littelfuse Kxxx1GL Series - Manual (Page 4)

4
Revised: 12/26/13
©2013 Littelfuse, Inc
Specifications are subject to change without notice.
Teccor ® brand Thyristors
Multipulse™ SIDACs
Kxxx1GL Series
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
Note: With proper component selection, this circuit will produce three pulses for ignition of
metal halide lamp that requires a minimum of three pulses at 5kV magnitude and >1uSec
duration each at a minimum repetition rate of 3.3kHz.
Ballast
Kxxx1GL
220 V / 240 V
50 / 60 Hz
Metal
Halide
Lamp
H.V.
Step-up
Transformer
0.1- 0.15 µF
0.22- 0.33µF
5 - 20µH
8.2K-10K
5W
Figure 10: Typical Metal Halide Ignitor Circuit
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