PME261KA5100KR30 Datasheet, PDF (7/13 Pages) Kemet Corporation – PME261 Series Metallized Impregnated Paper, 10.2-25.4 mm Lead Spacing, 400 - 1,000 VDC

Film Capacitors – General Purpose, Pulse and DC Transient Suppression
PME261 Series Metallized Impregnated Paper, 10.2 – 25.4 mm Lead Spacing, 400 – 1,000 VDC
Soldering Process cont'd
Wave Soldering Recommendations cont'd
1. The table indicates the maximum set-up temperature of the soldering process
Figure 1
Dielectric
Maximum Preheat
Temperature
Maximum
Peak Soldering
Temperature
Film Material _{Capacitor Capacitor Capacitor Capacitor Capacitor}
Pitch Pitch Pitch Pitch Pitch
≤ 10 mm = 15 mm > 15 mm ≤ 15 mm > 15 mm
Polyester
130°C 130°C 130°C 270°C 270°C
Polypropylene 100°C 110°C 130°C 260°C 270°C
Paper
130°C 130°C 140°C 270°C 270°C
Polyphenylene
Sulphide
150°C
150°C
160°C
270°C
270°C
2. The maximum temperature measured inside the capacitor:
Set the temperature so that inside the element the maximum temperature is below the limit:
Dielectric Film Material
Polyester
Polypropylene
Paper
Polyphenylene
sulphide
Maximum temperature
measured inside the element
160°C
110°C
160°C
160°C
Temperature monitored inside the capacitor.
Selective Soldering Recommendations
Selective dip soldering is a variation of reflow soldering. In this method, the printed circuit board with through-hole
components to be soldered is preheated and transported over the solder bath as in normal flow soldering without touching
the solder. When the board is over the bath, it is stopped and pre-designed solder pots are lifted from the bath with molten
solder only at the places of the selected components, and pressed against the lower surface of the board to solder the
components.
The temperature profile for selective soldering is similar to the double wave flow soldering outlined in this document,
however, instead of two baths, there is only one bath with a time from 3 to 10 seconds. In selective soldering, the risk of
overheating is greater than in double wave flow soldering, and great care must be taken so that the parts are not overheated.
© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 • 864-963-6300 • www.kemet.com
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