Sprague 118P20554S4 Hermetic Film/Paper Capacitor
The Sprague 118P20554S4 is a high-quality hermetically sealed capacitor, designed for applications requiring reliable performance and durability. This vintage component is part of Sprague’s esteemed 118P series, known for its robust construction and consistent electrical characteristics.
Key Features
- Capacitance: 2 microfarads (µF)
- Voltage Rating: 400 volts DC (VDC)
- Construction: Metallized paper and polyester film
- Sealing: Hermetically sealed to prevent moisture ingress and enhance longevity
- Lead Configuration: Axial leads for through-hole mounting
Applications
This capacitor is suitable for a variety of applications, including:
- Power supply filtering
- Coupling and decoupling circuits
- Timing circuits
- Audio equipment
Dimensions
While specific dimensions for the 118P20554S4 model are not readily available, similar capacitors in the 118P series with a 2 µF capacitance and 400 VDC rating typically have the following approximate dimensions:
- Diameter: 0.235 inches
- Length: 0.750 inches
These compact dimensions make the capacitor suitable for applications where space is limited.
Reliability and Performance
The hermetic sealing of the Sprague 118P20554S4 ensures protection against environmental factors such as humidity and contaminants, contributing to its reliability and long service life. The combination of metallized paper and polyester film materials provides stable capacitance and low loss characteristics, making it a dependable choice for critical electronic circuits.
Whether you’re restoring vintage equipment or designing new circuits that require a reliable 2 µF, 400 VDC capacitor, the Sprague 118P20554S4 offers a blend of classic design and enduring performance.












