UFW1A333MRD

The UFW1A333MRD is a high-capacitance aluminum electrolytic capacitor in a radial can package from Nichicon’s UFW series, designed for audio equipment applications. It delivers 33,000 µF at 10 V with radial leads and is intended where large energy storage and high ripple handling are required in audio power circuits.

Key performance attributes include high low- and high-frequency ripple current capability, long endurance at elevated temperature, and a compact φ22×50 mm can size with 10 mm lead spacing. Status: End Of Life.

Key Features

• High Capacitance — 33,000 µF (33 mF) provides substantial reservoir capacity for audio power supplies and energy storage.
• Rated Voltage & Tolerance — Rated at 10 V with ±20% capacitance tolerance for predictable behavior in low-voltage audio rails.
• Ripple Current Performance — 4,500 mA low-frequency ripple current (120 Hz) and 5,175 mA high-frequency ripple current (10 kHz) to support high-current audio demands.
• Loss Characteristics — Specified tangent of loss angle (tan δ) of 0.88 at 20°C and 120 Hz for this part number.
• Leakage Current — Rated leakage current 9,900 µA as specified for this part.
• Endurance & Temperature Range — 2,000 hours endurance at 85°C and an operating range of −40°C to +85°C for sustained operation in elevated-temperature environments.
• Package & Mounting — Radial lead, can-style package, size φ22 × 50 mm, lead spacing 10 mm ±0.5 mm; supplied in bulk/bag packing (no terminal forming).
• Polarized — Polarized electrolytic construction for DC power applications.

Typical Applications

• Audio equipment — Bulk reservoir and smoothing capacitor in audio power supplies where large capacitance and ripple handling are needed.
• Audio power supply filtering — Energy storage and decoupling for amplifiers and audio power stages to support transient current demands.
• Low-frequency audio energy storage — Provides sustained energy for low-frequency output stages and subwoofer amplifier sections.

Unique Advantages

• Large energy capacity: 33,000 µF enables extended smoothing intervals and stable supply rails for audio systems.
• High ripple endurance: Combined low- and high-frequency ripple current ratings (4.5 A @120 Hz, 5.175 A @10 kHz) support demanding audio power conditions.
• Long endurance at elevated temperature: Rated for 2,000 hours at 85°C to maintain performance in sustained thermal conditions.
• Compact radial can form factor: φ22×50 mm package with 10 mm lead spacing simplifies through-hole assembly for audio PCBs.
• Audio-focused series: Part of Nichicon’s UFW series specified for audio equipment, aligning component selection with audio design requirements.

Why Choose UFW1A333MRD?

UFW1A333MRD is positioned for audio designers who require a high-capacitance, high-ripple, through-hole electrolytic solution in a compact radial can. Its combination of 33,000 µF capacity, multi-frequency ripple current capability, and 2,000-hour endurance at 85°C makes it a practical choice for audio power supplies, amplifier reservoirs, and low-frequency energy storage.

As part of Nichicon’s UFW audio series, this part aligns with typical audio design needs where large capacitance and robust ripple handling are primary concerns. Please note the part status is End Of Life—confirm current availability when planning production or replacement designs.

Request a quote or contact sales to check availability, discuss options, or submit a procurement inquiry for UFW1A333MRD.