Polystyrene Film Capacitor 22pF 50V
The Polystyrene Film Capacitor 22pF 50V is a precision, low-loss film capacitor using a polystyrene dielectric (Styroflex / PS) and foil electrodes, designed for timing, RF tank circuits, and precision analog applications where low dielectric absorption and long-term stability are required. Supplied in radial through-hole packages and is rated for operation to 50V DC.
Features
- Polystyrene (PS / Styroflex) dielectric with foil electrodes for very low dielectric absorption and high Q.
- Nominal capacitance 22pF with typical tolerance ±5%.
- Rated voltage 50V DC.
- Extremely low dissipation factor and leakage.
- Radial through-hole leaded package for easy hand-wiring or PCB mounting.
Specifications
| Parameter | Value |
|---|---|
| Dielectric | Polystyrene (PS) |
| Capacitance | 22pF |
| Tolerance | ±5% |
| Rated Voltage | 50V |
| Dissipation Factor | typ. ≤0.1% at 1kHz |
| Mounting | Radial through-hole |
| Body Size | 4.5mm x 10.5mm |
| Operating Temp. Range | −40°C to +85°C |
| Construction | Polystyrene film + foil, epoxy/polyester wrap. |
Applications
- Precision oscillator and timing circuits (LC tank capacitors).
- RF circuits and filter networks where high Q and low loss are required.
- Sample-and-hold, ADC front-end, and low-drift analog conditioning.
- Vintage audio and synthesizer modules requiring original-style polystyrene caps.
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