Datasheet

18© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard F3114_C4AQ • 7/29/2020
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
Power and AC Film Capacitors – Printed Circuit Board Mount Power Film Capacitors
C4AQ, Radial, 2 or 4 Leads, 500 - 1,500 VDC, for DC Link (Automotive Grade)
Soldering Process cont.
Wave Soldering Recommendations cont.
1.Thetablesindicatesthemaximumset-uptemperatureofthesolderingprocess
Dielectric Film
Material
Maximum Preheat
Temperature
Maximum
Peak Soldering
Temperature
Capacitor
Pitch
≤15mm
Capacitor
Pitch
> 15 mm
Capacitor
Pitch
≤15mm
Capacitor
Pitch
> 15 mm
Polyester 130°C 130°C 270°C 270°C
Polypropylene 110°C 130°C 260°C 270°C
Paper 130°C 140°C 270°C 270°C
Polyphenylene
Sulphide
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
Maximum Temperature
Measured Inside the Element
Polyester 160°C
Polypropylene 110°C
Paper 160°C
Polyphenylene Sulphide 160°C
Temperature monitored inside the capacitor.
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pre-heated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.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withatimefrom3–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donotoverheat.