Datasheet

4© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard F3087_P278_X1_480 • 2/20/2019
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
Film Capacitors – AC Line EMI Suppression and RC Networks
P278, Metallized Impregnated Paper, Class X1, 480 VAC
Performance Characteristics
Rated Voltage 480 VAC 50/60Hz
Capacitance Range 0.001 – 0.15 µF
Capacitance Tolerance ±20%
Temperature Range −40°Cto+110°C
Climatic Category 40/110/56/B
Approvals ENEC, UL, cUL
Dissipation Factor
MaximumValuesat+23°C
1 kHz 1.3%
Test Voltage
Between Terminals
The 100% screening factory test is carried out at
2,700 VDC. The voltage level is selected to meet the
requirements in applicable equipment standards. All
electrical characteristics are checked after the test.
This test may not be repeated due to potential capacitor damage.
KEMET is not liable for any failures that result from performing the
test again.
Insulation Resistance
Minimum Value Between Terminals:
≥12,000MΩ
In DC Applications Recommendedvoltage≤1,000VDC
Resonance Frequency
Tabulated self-resonance frequencies (f
0
)
refer to 5 mm lead length
Environmental Test Data
Test IEC Publication Procedure
Endurance IEC 60384–14
1.25 x V
R
VAC 50 Hz , once every hour increase to 1,000 VAC for 0.1 seconds,
1,000 hours at upper rated temperature
Vibration IEC 60068–2–6 Test Fc 3 directions at 2 hours each 10 – 500 Hz at 0.75 mm or 98m/seconds
2
Bump IEC 60068–2–29 Test Eb 4,000 bumps at 390 m/seconds
2
Change of Temperature IEC 60068–2–14 Test Na Upper and lower rated temperature 5 cycles
Active Flammability IEC 60384–14 V
R
+20surgepulsesat4.0kV(pulseevery5seconds)
Passive Flammability IEC 60384–14 IEC60384–1,IEC60695–11–5Needle-ametest
Damp Heat Steady State IEC 60068–2–78 Test Cab +40°Cand93%RH,56days