Capacitor Rebel URZ3133 — 20µF 450V aluminium electrolytic capacitor

Rebel URZ3133 is a 20µF, 450V aluminium electrolytic capacitor designed for energy storage and smoothing in electronic power circuits. Built for use where stable capacitance and high voltage tolerance are required, this component supports filtering, decoupling and pulse-load duties in power supplies, motor drives, inverters and other industrial or consumer electronics. The aluminium electrolytic construction offers a compact size-to-capacitance ratio and predictable performance over typical operating temperatures.

Advantages

The capacitor delivers a rated capacitance of 20µF with a 450V voltage rating, providing headroom for high-voltage filter applications. Its aluminium electrolyte technology ensures low equivalent series resistance (ESR) relative to film capacitors of similar capacitance, enabling effective ripple reduction and transient response. The component is suitable for repeated charge–discharge cycles and offers stable electrical characteristics that help maintain circuit reliability under load and moderate temperature variations.

Suitable for

• Power supply smoothing and bulk filtering in linear and switch-mode power supplies
• DC link and energy storage in motor drives and inverters
• Decoupling and transient suppression in high-voltage circuits
• Pulse-load and charging/discharging applications where stable capacitance is required

Key specifications

• Capacitance: 20 µF
• Rated voltage: 450 V DC
• Dielectric type: aluminium electrolytic
• Intended applications: filtering, decoupling, energy storage, pulse handling
• Performance characteristics: low ESR for its class, suitable for repetitive charge/discharge cycles

How to use

Install the capacitor observing correct polarity and rated voltage. Ensure the part is mounted with adequate mechanical support and clearance for ventilation to avoid thermal stress. When replacing a capacitor, match capacitance and voltage rating and verify ESR and temperature specifications if provided by the circuit designer. Follow standard safety procedures: discharge stored energy before handling, and use appropriate personal protective equipment when working on high-voltage circuits.

Usage recommendations

Prefer capacitors with equal or higher voltage rating than the circuit’s maximum DC voltage, and select grade and temperature rating appropriate to the intended ambient conditions. For best long-term performance, allow for derating at elevated temperatures and check ESR values when designing for low-ripple or high-pulse applications.