Plastic Film Capacitors

The heat resisting temperature of the film capacitor varies with the type of dielectric film, structure of the capacitor,

manufacturing method, etc..

When mounting, set the mounting temperature so that the capacitor inside (element) temperature is be lower than the

mounting heat resisting temperature given below.

If the capacitors go through the high temperature both after soldering , be sure to check the temperature till decreasing.

＜Cautions for mounting＞

・ Solder within the following temperature condition range. (Dipping times is within twice, the second dipping should be

carried after the capacitor itself has returned to the normal temeprerature) (Example)

Notice) The soldering condition shows one example. The temperature of the

capacitors depend on several parameters for example soldering machine

size , machine structure, temperature control method, etc..

Should measure the temperature of the capacitors and confirm the

temperature under the above table.

Conditions

・ The film capacitor has lower mounting heatresistingtemperature than other capacitors, therefore the following

cautions are needed.

・ Avoid passing through an adhesive curing oven. After adhesive curing, the capacitor should be inserted in the P.W.

board and solder. (When passing an adhesive curing oven, breakage of coating resin or deterioration in

capacitor characteristic may be caused.)

・ Avoid reflow soldering. (When use in reflow soldering, breakage of coating resin or deterioration in capacitor

characteristic may be caused.)

・ When using in multilayer Printed wiring board, or in the case

of a capacitor with a copper lead wire, please contact with us.

(In the case of copper lead wire, the thermal conductivity of

the copper wire is high, and the internal temperature of the

capacitor rises rapidly and may exceed the mounting heat

resisting temperature.)

1. Soldering

(Target product : ECQE, ECWF, ECWH, ECQU)

Dielectric

Polypropylene

―

　　Guidelines and precautions (Lead type)

ECWF(L) 400 V / 0.022 μF to 0.11 μF, 630 V / 0.01 μF to 0.043 μF

ECWF(A)

ECWF(L) 400 V / 0.12 μF to 2.4 μF, 630 V / 0.047 μF to 1.3 μF

Type

Measuring point Ｂ

Measuring point Ａ

Mounting heat resisting temperature

145

℃

125

℃

―

30-Sep-19

135

℃

125

℃

Polyester

―

160

℃

Capacitor

Raised from P,W. board

(Crimped lead)

P. W. Board

Pre-heating

t = 0.8mm or more

Thickness

135

℃

Measurement temperature 120

℃

within 1 minute (Back side of the P. W.

Board around the capacitor)

125

℃

125

℃

―

125

℃

ECWFE 630 V, ECWFG 630 V

ECWH(A) , ECWH(V), ECWFD 630 V

ECWH(C)

135

℃

140

℃

ECWFD 450 V

ECQUA, ECWFE 450 V

ECQE(F)

ECQE(B), ECQE(T), ECQUL, ECQUG

120

℃

Metal spray layer

Capacitor

Thermocouple (ø0.1)

(Measuring point A：Capacitor inside(Metal spray layer)

Thermocouple (ø0.1)

(Measuring point B：Capacitor inside(Element)

Soldering iron

Dip soldering

400

380

360

340

320

300

280

260

240

220

0 1 2 3 4 5 6 7 8

Soldering time (s)

Thermocouple (ø0.1)

Part of measuring

Capacitor

P.W. board