Overview
The Sprague CE56C121N is a 20µF 300VDC aluminum electrolytic capacitor built to legacy industrial and vintage electronics standards. Sprague Electric was acquired by Vishay Intertechnology in 1992, and original Sprague-branded capacitors are no longer manufactured, making NOS Sprague parts increasingly valuable for restoration and legacy system maintenance. This CE56C121N unit is new old stock inventory, fully functional for drop-in replacement applications.
Key Features
- Capacitance: 20µF nominal
- Voltage Rating: 300VDC
- Aluminum can construction for robust mechanical and thermal characteristics
- New old stock (NOS) — original, never-used Sprague inventory
- Ideal for audio equipment, industrial power supplies, and vintage electronics restoration
- Low leakage current and long shelf life typical of Sprague aluminum electrolytic design
Technical Specifications
Verify all specifications against your original equipment documentation before installation. Contact your system integrator or equipment manufacturer if cross-reference assistance is required.
Typical Applications
- Audio equipment amplifier filtering and power supply decoupling
- Industrial power supplies and DC bus filtering
- Vintage and vintage-style electronic equipment restoration
- Testing and measurement instrumentation
- Legacy equipment maintenance and field replacement
Compatibility & Replacements
Compatible With
- Legacy and vintage audio amplifiers and power supplies
- Industrial control equipment requiring 300VDC filter capacitors
- Laboratory and test equipment from the 1960s–1990s era
- Any circuit or power supply designed for 20µF / 300VDC electrolytic capacitors
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The CE56C121N replaces legacy 20µF 300VDC aluminum electrolytic capacitors in applications where Sprague parts were originally specified. Modern Vishay, Nichicon, Capacitor Industries, and CDE equivalents may serve as functional replacements with matching capacitance and voltage ratings — confirm lead style, case dimensions, and terminal configuration with your equipment schematic.
Works With
- Analog filter and smoothing circuits
- DC bus decoupling and energy storage circuits
- Audio crossover and tone control networks
- Industrial control and motor drive power supplies
