Overview
The Sprague 673D559 is a high-reliability axial aluminum electrolytic capacitor designed for industrial and electronic applications requiring stable voltage support and energy storage. With a capacitance rating of 470µF and maximum operating voltage of 150VDC, this component operates reliably at temperatures up to 105°C, making it suitable for power supplies, filtering circuits, and energy backup systems where thermal stability is critical.
Key Features
- Axial lead termination for easy PCB insertion and through-hole mounting
- High capacitance density: 470µF rated capacity
- Robust 150VDC rating for medium to high-voltage applications
- Enhanced temperature rating of 105°C for demanding environments
- Aluminum electrolytic construction provides predictable behavior over time
- Long shelf life and low leakage current typical of mature Sprague designs
Technical Specifications
- Capacitance: 470µF
- Voltage Rating: 150VDC
- Operating Temperature: 105°C (maximum)
- Termination Type: Axial leads
- Dielectric Material: Aluminum electrolytic
- Polarity: Polarized (observe lead markings)
- Lead Configuration: Two axial terminals
- Manufacturer: Sprague (now Vishay)
- Part Number: 673D559
Typical Applications
The Sprague 673D559 is commonly found in:
- DC power supply filtering and ripple smoothing
- Audio amplifier power stages requiring stable voltage rails
- Industrial control systems and test equipment
- Telecommunications power conditioning circuits
- Energy storage in legacy and vintage electronic equipment
- Voltage regulation and surge suppression networks
Compatibility & Replacements
Compatible With
- Standard through-hole PCB layouts with 0.1″ grid spacing
- Industrial power supply designs rated 150V and below
- Audio and RF equipment using axial capacitor mounting
- Vintage and legacy electronic test equipment
- General-purpose DC power filtering circuits
Replaces / Drop-In Replacement For
The Sprague 673D559 is a direct replacement for other 470µF 150V axial aluminum electrolytic capacitors with equivalent lead spacing and physical dimensions. Verify lead configuration and mounting compatibility with your specific application before installation. For exact cross-references, consult the original equipment schematic or contact your system integrator.
Works With
- Standard analog circuit design tools and simulation software
- Through-hole assembly and soldering processes (wave and hand solder)
- Industrial power quality and ripple filtering designs
- Legacy equipment restoration and refurbishment projects
- SPICE-compatible circuit modeling and analysis
