© 2016 Littelfuse, Inc.

Specifications are subject to change without notice.

Revised: 03/25/16

Standard Unidirectional SIDACs

Soldering Parameters

Reflow Condition

Pb – Free assembly

Pre Heat

-Temperature Min (T

150°C

-Temperature Max (T

200°C

-Time (min to max) (t

60 – 180 secs

Average ramp up rate (LiquidusTemp)

(T

5°C/second max

T

5°C/second max

Reflow

-Temperature (T

217°C

-Temperature (t

60 – 150 seconds

PeakTemperature (T

Time within 5°C of actual peak

Temperature (t

20 – 40 seconds

Ramp-down Rate

5°C/second max

Time 25°C to peakTemperature (T

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

25

time to peak temperature

Preheat

Preheat

Ramp-up

Ramp-up

Ramp-down

Ramp-do