Film Capacitor

A film capacitor is a very important device used in many power conversion circuit designs. In fact, this component is oftentimes referred to by design engineers as a “critical” component in their circuit. Film capacitors are typically high-voltage, high-current, long life capacitors used in DC Link, input filtering, output filtering, snubber and arc suppression applications. These capacitors are found in traction systems, inverters, high-energy medical equipment, renewable energy power generation (solar, wind, etc.), power supplies, welding, and induction heating. Whereas aluminum electrolytic capacitors are nearly always polarized (positive terminal and negative terminal), film capacitors are decidedly non-polar and can therefore be used in all voltage reversal applications. Many film capacitors include a self-healing characteristic: the capacitor "heals" in microseconds after an internal short circuit caused by an overvoltage transient. Key characteristics that should be considered when choosing the appropriate film capacitor include overall AC/DC voltage rating (V), Maximum RMS voltage and Maximum RMS current specifications, ripple current (Amps), dV/dt (V/uS), and Case/Package Type.

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Mfg

Spectrum Control Inc. (2)

Package Type

Cylinder (1)
Screw Terminal (1)

Rated Voltage (V)

900 (2)

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Capacitance (µF)

320 (1)
440 (1)

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Tolerance (%)

±10 (1)

Minimum Operating Temperature (°C)

-55 (2)

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Maximum Operating Temperature (°C)

85 (2)

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ESR (Ω)

0.0018 (1)
0.0021 (1)

Select Min 0.0018 0.0021
Select Max 0.0018 0.0021

Maximum RMS Current (A)

60 (2)

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Lead Pitch (mm)

45 (2)

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	Image	Item	Mfg Part #	Mfg	Description	Datasheet	Availability	Min/Mult	Price (US Stock)	Quantity		ECAD Model	Package Type	Rated Voltage (V)	Capacitance (µF)	Tolerance (%)	Minimum Operating Temperature (°C)	Maximum Operating Temperature (°C)	ESR (Ω)	Ripple Current (A)	dV/dT (V/µs)	Maximum RMS Voltage (Vrms)	Maximum RMS Current (A)	Lead Pitch (mm)
		55DC-901-321-F	55DC-901-321-F	Spectrum Control Inc.	Film Capacitor		Request Quote for Lead Time	1	Call RFPD		Quote		Screw Terminal	900	320		-55	85	0.0021				60	45
		55DC-901-441-SA	55DC-901-441-SA	Spectrum Control Inc.	Film Capacitor		Request Quote for Lead Time	1	Call RFPD		Quote		Cylinder	900	440	±10	-55	85	0.0018				60	45