Gas Discharge Tubes Chapter8GasDischargeTubes.pdf
Gas Discharge Tubes Chapter8GasDischargeTubes.pdf
Gas Discharge Tubes Chapter8GasDischargeTubes.pdf
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<strong>Gas</strong> <strong>Discharge</strong> <strong>Tubes</strong><br />
High Performance Beta Range<br />
Temperature ˚C<br />
RoHS<br />
250<br />
225<br />
200<br />
175<br />
150<br />
125<br />
100<br />
75<br />
50<br />
25<br />
0<br />
0<br />
Pb<br />
Greentube SL1021A Series <strong>Gas</strong> Plasma Arresters<br />
Profile for reflow soldering<br />
50 100 150 200 250 300 350 400 450 500<br />
Time in seconds<br />
Temperature (˚C)<br />
300<br />
200<br />
100<br />
www.littelfuse.com<br />
Preheating<br />
Area<br />
Profile for wave soldering<br />
Solder T 1 max = 266 o C<br />
Flow Area<br />
T 1 = 239 o C<br />
Tm = 179 o C Forced Cooling<br />
10 20<br />
Time (seconds)<br />
30 40<br />
Notes:<br />
T1 max = Maximum Tab Temperature = 266 o C<br />
T1 = Flow Tempearture of Solder = 239 o C<br />
Tm = Melting Point of Solder = 179 o C<br />
Tamb = 25 o C<br />
Maximum permissible rate of temperature change = 7<br />
o C / sec<br />
337<br />
®<br />
8<br />
GAS DISCHARGE<br />
TUBES
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