Overview
The Sprague 36DX9489 is a premium aluminum electrolytic capacitor from the Powerlytic large-can series. Designed for industrial power supply filtering, energy storage, and similar applications, this unit combines high capacitance density with proven reliability. The 36DX9489 operates within the 10–450 WVDC rated voltage range and supports extended operating life in demanding industrial environments.
Key Features
- High capacitance per case size — enables compact power supply design
- Low leakage current — minimizes parasitic drain in idle states
- Long shelf and operating life — suitable for legacy equipment maintenance and retrofit applications
- Proven Powerlytic construction — trusted in industrial motor drives, UPS systems, and legacy electronics
- Standard screw-terminal configuration — direct replacement for original applications
Technical Specifications
- Capacitance: 18,000 µF (±10%)
- Voltage Rating: 25 VDC
- Series: 36DX (Powerlytic, large can)
- Operating Temperature Range: −40 °C to +85 °C
- Case Size: Large cylindrical aluminum can with screw terminals
- Life Rating: 1,000 hours at +85 °C
- Tolerance: +75%, −10% on capacitance
Typical Applications
- Industrial motor drive power supplies and DC bus filtering
- Uninterruptible power supply (UPS) systems — DC stage energy storage
- Legacy electrical equipment maintenance and retrofit — form-fit-function replacement
- Industrial automation and process control power conditioning
- Vintage audio and test equipment restoration requiring original specifications
Compatibility & Replacements
Compatible With
- Industrial DC power supplies rated 25 VDC or lower
- Motor control drives and soft-start circuits
- Legacy uninterruptible power supply (UPS) systems
- Industrial PLCs and automation controllers with bulk filtering stages
- Vintage test instruments and audio equipment requiring capacitor replacement
Replaces / Drop-In Replacement For
The Sprague 36DX9489 directly replaces original Sprague 36DX applications requiring 18,000 µF at 25 VDC. Verify mounting orientation and screw-terminal spacing with your system integrator before ordering. Note: Vishay (current manufacturer) offers form-fit-function equivalent replacements for discontinued Sprague part numbers.
Works With
- Screw-terminal aluminum can capacitor footprints (standard 36DX mounting)
- Industrial DC bus and filtering stage circuits
- Power supply designs rated 25 VDC or below
- Legacy equipment control and conditioning circuits
