UKW2A331MHD

The UKW2A331MHD is a radial-lead aluminum electrolytic capacitor from Nichicon's UKW series, specified at 330 µF with a 100 V rated voltage. Engineered for audio and AV equipment, this part delivers a combination of high-voltage capability, frequency-dependent ripple handling, and a compact radial-can package for through-hole designs.

Key value propositions include robust ripple current performance across low and high frequencies, a 2,000-hour endurance rating at 85°C, and RoHS compliance—features that support reliable operation in audio-focused consumer and professional electronics.

Key Features

• Capacitance & Voltage — 330 µF nominal capacitance with ±20% tolerance at a 100 V rated voltage, suitable where high-voltage bulk capacitance is required.
• Ripple Current Performance — Low-frequency ripple current 750 mA (120 Hz) and high-frequency ripple current 1.125 A (10 kHz), enabling improved handling of supply ripple across audio frequency ranges.
• Endurance & Temperature Range — Rated for 2,000 hours at 85°C and specified operating range −40°C to 85°C to meet sustained elevated-temperature requirements.
• Leakage Current — Specified leakage current of 990 µA for predictable bias behavior after application of rated voltage.
• Package & Mounting — Radial lead, can-style package with dimensions φ12.5 × 25 mm and 5.0 mm lead spacing (±0.5 mm), optimized for through-hole PCBs and manual or automated insertion.
• Audio-Optimized Electrolyte (Series Feature) — Part of the UKW series designed for audio equipment; the series development emphasizes a balanced sound characteristic through a specially formulated electrolyte.
• Compliance & Packing — RoHS compliant; available in Bulk (no terminal forming) or Bag packing for flexible procurement and assembly workflows.

Typical Applications

• Audio Equipment — Designed for use in audio circuits and components where the UKW series’ electrolyte formulation supports sound-quality-focused designs.
• AV Systems — Suited to AV equipment applications requiring high-voltage bulk capacitance and stable ripple performance.
• Through-Hole Power Filtering — Radial-can form factor provides a compact option for through-hole smoothing and decoupling in audio and AV power supplies.

Unique Advantages

• High Voltage Capability: 100 V rating enables use on higher-voltage rails without changing capacitor topology.
• Broad Ripple Handling: Specified ripple currents at both 120 Hz and 10 kHz support performance across low and high frequency content common in audio systems.
• Long Endurance: 2,000 hours at 85°C indicates sustained performance under elevated operating temperatures.
• Compact Radial Can: φ12.5 × 25 mm size and 5 mm lead spacing ease board placement in space-constrained through-hole designs.
• Audio-Centric Design: As a UKW-series part, it incorporates an electrolyte developed to achieve a harmonious balance of sound quality for AV applications.
• Regulatory Compliance: RoHS compliant for environmentally conscious product designs.

Why Choose UKW2A331MHD?

The UKW2A331MHD pairs high-voltage bulk capacitance with ripple performance tailored for audio and AV environments, packaged in a compact radial-can format for through-hole assemblies. Its 2,000-hour endurance at 85°C and RoHS compliance make it a practical choice for designers seeking durable, regulatory-compliant capacitors for consumer and professional audio equipment.

This part is well suited to engineers and purchasers specifying electrolytic capacitors for audio-focused power and signal circuits that require a balance of voltage rating, ripple capability, and a proven series-level emphasis on sound quality.

Request a quote or submit a sourcing inquiry to discuss availability, packaging options (Bulk or Bag), and lead times for UKW2A331MHD.