SMS : Polypropylene Capacitor: 700Vdc - 1800Vdc
The SMS range of capacitors has been designed to offer electronic circuit designers of dc filtering applications an alternative to electrolytic capacitors. Manufactured from a special metallised polypropylene film, the component offers a very high volumetric efficiency and current handling capability.
The design has particularly good self healing capabilities and is able to with stand high overvoltage stresses without becoming short circuit.
The design also affords extremely low self inductance. The capacitors are housed in a UL 94-V0 rated plastic case.
|Capacitance range||15 - 240 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||10Nm|
|Rated voltage||1100 - 1800 Vdc (see graph below for expected lifetime)||RMS current rating||Dependant on operating conditions, typically 20-50A. Please contact us for assistance with calculations|
ESR - measured at 10kHz, Imax - Maximum rms ripple current at 10kHz in 40°C ambient, still air for T=70°C
Quality and useful life
The specification of quality data - which always refers to a fairly large number of components - does not constitute a guarantee of characteristics or properties in the legal sense. However, agreement on the specifications does not mean that the customer may not claim for replacement of individual defective components within the terms of delivery. We cannot, however, assume any further liability beyond the replacement of defective components. This applies in particular to any further consequences of component failure.
Furthermore, it must be taken into consideration that the figures stated for useful life and failure rate refer to the average production status and are therefore to be understood as mean values (statistical expectations) for a large number of delivery lots of identical capacitors. These figures are based on application experience and data obtained from preceding tests under normal conditions, or - for purposes of accelerated aging - more severe conditions.
F - Family: SMS
C - Cap value n for C<1000nF, u for C≥1µF
T - Tolerance M=±20% K=±10% J=±5% G=±2% F=±1%
V - Rated Voltage dc : 700, 900, 1100, 1400, 1800