CDE Cornell Dubilier•1605 E. Rodney French Blvd.•New Bedford, MA 02740•Phone: (508)996-8561•Fax: (508)996-3830 www.cde.com
Type 940C through 943C Power Film Capacitors
Electrical Characteristics
Operating Temperature
–55 ºC to +105 ºC
*Full rated voltage at 85 ºC, derate linearly to 50% rated voltage at 105 ºC
Capacitance tolerance
±10% standard tolerance
Dissipation Factor
<0.1% at 1 kHz, 25 ºC
Dielectric Withstand
1.6 x rated voltage for 60 seconds
Insulation Resistance
>100,000 MΩ x µF at 100 Vdc
measured after 2 minutes
Equivalent Series Resistance (ESR)
See rating tables for values
Equivalent Series Inductance (ESL)
See rating tables for values
dV/dt
See rating tables for values
Rated Current, I
pk and Irms
See rating tables for values
Maximum allowable current in amperes at 70 ºC
Capacitance Temperature Coefficient
–200 ppm/ºC ±100 ppm
Service Life
30,000 hours @ rated Vac, 70 ºC
60,000 hours @ rated Vdc, 70 ºC
Accelerated Tests
Accelerated Life
1.25 x rated DC voltage at 85 ºC
for 2,000 hours
Performance
<3% capacitance change
ESR <125% of initial reading
IR >50% of initial limit
Accelerated Pulse Testing
per IEC-384
Performance
<3% in capacitance change
<.003 increase in DF from initial value
Typical Characteristics
–55 –25
0
25
50
75
105
–55 –25
0
25
50
75
105
–55 –25
0
25
50
75
105
–6
–4
–2
0
2
4
0
.05
.10
.15
.20
Degrees Centigrade
Degrees Centigrade