Datasheet

21© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard F3118_R76_125C • 3/28/2019
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
Film Capacitors – Polypropylene Pulse/High Frequency Capacitors
R76, 125°C Double Metallized Polypropylene Film, Radial, DC and Pulse Applications (Automotive Grade)
Soldering Process cont'd
Wave Soldering Recommendations cont'd
1. The table indicates the maximum set-up temperature of the soldering process
Figure 1
Film
Material
Maximum Preheat
Temperature
Maximum
Peak Soldering
Temperature
Capacitor
Pitch
≤10mm
Capacitor
Pitch
= 15 mm
Capacitor
Pitch
> 15 mm
Capacitor
Pitch
≤15mm
Capacitor
Pitch
> 15 mm
Double
Metallized
Polystyrene and
Single Metallized
Polypropylene
110°C 110°C 130°C 260°C 270°C
2. The maximum temperature measured on the capacitor body:
Set the temperature so that the maximum temperature is below the limit:
Sensor Position
Film Material
Maximum
Temperature Measured
on the Capacitor Body
Double Metallized
Polystyrene and Single
Metallized Polypropylene
120°C(forseriesR76)
125°C(forseriesR76125°)
Duration: < 60 seconds
Selective Soldering Recommendations
Selectivedipsolderingisavariationofreow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ow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proleforselectivesolderingissimilartothedoublewaveow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owsoldering,andgreatcaremustbetakensothatthepartsarenotoverheated.