Type 400C 95 °C, Long-Life, Computer Grade, Radial Leaded
Twice the Life!
The Type 400C is the PC-mount equivalent for Type
500C screw-terminal computergrade capacitor. It’s for
bus filtering applications where long life is critical like
telecom systems and industrial power supplies. Type
400C delivers 2 to 3 times the life of Type 4CMC,
and above 250 V it has nearly the same capacitance.
Its extended cathode foil assures cool operation with
heatflow from the capacitor element to the can in all
mounting orientations.
Highlights
• More than 10 years life in most applications
• Ripple Currents to > 50 amps at 55 °C
• 3-leads
• Printed-circuit mounting
• Thermal-Pak extended cathode construction
™
Specifications
–40 °C to +95 °C
100 to 500 Vdc
170 µF to 29,000 µF ± 20%
Operating Temperature:
Rated Voltage:
Capacitance:
DC Leakage Current:
Cold Impedance:
≤ 3 √CV µA, 4 mA max, 5 min.
–20 °C multiple of 25 °C Z ≤ 4 for 100 V
3 for 150 V & up.
Ripple Current Multipliers:
Ambient Temperature
45 °C
55 °C
65 °C
75 °C
85 °C
95 °C
2.00
1.82
1.59
1.33
1.00
0.48
Frequency
5 kHz
50 Hz 60 Hz 120 Hz 360 Hz 1 kHz & up
100 to 160 V
200 to 350 V
400 to 500 V
0.80
0.80
0.78
0.85
0.83
0.80
1.00
1.00
1.00
1.05
1.15
1.30
1.08
1.20
1.40
1.08
1.20
1.40
EIA Ripple Life: 3000 h at full load at 85 °C per EIA IS-749
∆Capacitance ±20%
ESR 200% of limit
DCL 100% of limit
Life Test: 3000 h at full load at 95 °C with rated voltage
∆Capacitance ±20%
ESR 200% of limit
DCL 100% of limit
Shelf Life Test: 500 h at 95 °C. Capacitance, ESR and DCL meet initial
requirements.
Vibration: 10 to 55 Hz, 0.06” and 10 g max, 2 h each plane.
CDM Cornell Dubilier • 140 Technology Place • Liberty, SC 29657 • Phone: (864)843-2277 • Fax: (864)843-3800 • www.cde.com