Metallized Polyester film Capacitor (MER) of feature:

 

FEATURES:
1 .Low disspipation factor and high insulation resistance
2.High stability of capacitance and DF versustempersture and
frequency Non-inductive construcdion and self-healing property.
3.Flame retardant epoxy resin coating.

GENERAL TECHNICAL DATA
Dieelectric:Polyester film.
Plates:Aluminium layer deposited by evaporation under vacuum.
Winding:Non-inductive type.
Leads:Tinned wire.
Marking:Capacitance,tolerance,D.C.rated voltage
Operating temperature range:-40 to +80^oC

ELECTRECAL CHARACTERISTICS
Rated voltage(Vr):100Vdc~250Vdc~400Vdc-630Vdc
Capacitance values:E6 series(IEC 63 Norm).
Capacitance tolerances(measured at I kHz):±5%(J); ±10%(K); ~ 20%(M).
Dissipation factor(DF):At+25^oC±5^oC

Khz C≤μF >1μF 1 ≤1% ≤1% 10 ≤1.5%

WITHSTAND VOLTAGE:
1.6Vr(2SEC)
Insulation resisstance:
Test conditions:
Temperature: +25 i 5±5^oC
Voltage charge time: lmin
Voltage charge: 100Vdc
Performance:
≥3x 104 mΩ for C≤0.33μF
≥1x 104mΩ.μF for C≤0.33μF

TEST METHOD AND PERFORMANCE
Test conditions
Temperature: +40 ±2^oC
Relative humidity(RH): 93%±2^oC
Test duration: 21 days
performance
Capacitance change(C/C): ≤±5%
DF change(ADF): ±5% at 1 KHz
Insulation resistance: ≥50% of initial limit
Endurance:
Test conditions
temperature: +85^oC ±2^oC
Test duration: 1000h
Voltage applied: 1.25xVr
Capacitance change(C/C): ≤±5%
DF change(ADF): ~ 5% at 10KHz for C≤1uF
≤3% at 1KHz for C>1uF
Insulation resistance: ≥50% of initial limit
Resistance to soldering heat:
Test conditions
Solder bath temperature: +260±5^oC
Dipping time(with heat screen): 5s±1s
Performance
Capacitance change(C/C):≤ ±2% of the initial value.
Appearance:no damage and good tinning.