UKW1A333MRD

The UKW1A333MRD is an aluminum electrolytic capacitor in a radial lead can, optimized for audio and AV equipment. It provides bulk energy storage with a rated capacitance of 33,000 µF at 10 V in a φ22 × 50 mm package with 10 mm lead spacing.

Designed for demanding ripple environments, this part delivers specified low‑ and high‑frequency ripple current capability, a -40°C to 85°C operating range, and a 2000‑hour endurance rating at 85°C. Note: this part is currently listed as End Of Life.

Key Features

• Capacitance & Tolerance — 33,000 µF (33 mF) with ±20% tolerance, suitable for large bulk‑storage and smoothing applications at 10 V.
• Rated Voltage — 10 V DC rating for low‑voltage power rails and audio supply circuits.
• Ripple Current Handling — Low‑frequency ripple current of 4.5 A (120 Hz) and high‑frequency ripple current of 5.175 A (10 kHz), supporting both mains‑frequency filtering and higher‑frequency decoupling.
• Loss Characteristics — Tangent of loss angle (tan δ / DF) specified as 0.88 at 20°C, 120 Hz, 10 V, per product data.
• Leakage Current — Specified leakage current of 9,900 µA.
• Endurance — 2,000 hours at 85°C with specified limits on capacitance change, tan δ, and leakage current after the test.
• Mechanical & Mounting — Radial lead can, size φ22 × 50 mm, lead spacing 10.0 mm (±0.5 mm), packaged bulk or bag (no terminal forming).
• Environmental Compliance — RoHS compliant.

Typical Applications

• Audio / AV Equipment — Bulk energy storage and smoothing in audio power supplies where large capacitance and specified ripple handling are required.
• Power Supply Filtering — DC link and reservoir capacitor for low‑voltage power rails needing large capacitance at 10 V.
• Amplifiers — Reservoir and decoupling use in amplifier power stages within the specified temperature and ripple limits.

Unique Advantages

• Large Capacitance in a Compact Can: 33,000 µF in a φ22 × 50 mm radial can provides substantial bulk storage while retaining a small PCB footprint for radial‑lead mounting.
• Defined Ripple Capability: Rated ripple currents of 4.5 A (120 Hz) and 5.175 A (10 kHz) give clear guidance for thermal and ripple budgeting in both low‑ and high‑frequency environments.
• Audio‑Oriented Electrolyte: Part of the UKW series developed for audio equipment, intended to support a "harmonious balance of sound quality" as described in the series documentation.
• Wide Operating Range: −40°C to 85°C operation and a 2,000‑hour endurance rating at 85°C support stable performance in typical consumer and prosumer AV environments.
• RoHS Compliant: Meets RoHS directive requirements for restricted substances.

Why Choose UKW1A333MRD?

The UKW1A333MRD is positioned for designs that require very large capacitance at low voltage with defined ripple handling and a package suitable for radial‑lead mounting. Its combination of 33,000 µF capacitance, specified ripple currents at both 120 Hz and 10 kHz, and audio‑focused electrolyte development make it appropriate for AV and audio power supply applications where bulk energy storage and sound‑quality considerations matter.

Engineers and procurement teams seeking a compact, high‑capacitance aluminum electrolytic for audio and related equipment can use the UKW1A333MRD to meet ripple, thermal, and lifetime targets; note the part is currently End Of Life, so availability should be confirmed before design commitment.

To request a quote or check availability and last‑time buy options for UKW1A333MRD, please contact sales to submit an inquiry including required quantities and delivery timing.