GRA : Polypropylene Capacitor: 450Vdc - 1100Vdc
The GRA range of capacitors has been designed to offer designers of dc filtering applications an alternative to electrolytic capacitors. Manufactured from metallised polypropylene film, the component offers a very high volumetric efficiency along with very low losses and high current handling capability.
The capacitors are housed in a choice of low profile cases, manufactured from material which meets the flammability requirements of UL 94-V0 and flanged for easy fixing.
|Capacitance range||95 - 390 µF||Temperature range||-55 to + 85°C|
|Tolerance||± 10%||Environmental category||55/85/56 to EN60068-1 (IEC68-1)|
|Dissipation factor||≤ 0.001 at 1kHz & 20 ± 3°C||Proof voltage test||1.25 x rated voltage for 30s. Not to be repeated|
|Insulation resistance||≥ 10,000 MΩ-µF @ 400 Vdc & 20 ± 3°C||Tightening torque||7.5Nm|
|Rated voltage||450 - 1100 Vdc||RMS current rating||Dependant on operating conditions, typically 20-60A. Please contact us for assistance with calculations|
|Lifetime expectancy||100,000h at Ur and <70°C hotspot||Reliability||200FIT|
ESR - measured at 10kHz, Imax - Maximum rms ripple current at 10kHz in 40°C ambient, still air for T=70°C
F - Family
C - Capacitance in µF
T - Tolerance
V - Rated dc voltage