UKW1H331MPD

The UKW1H331MPD is a radial-lead aluminum electrolytic capacitor in Nichicon’s UKW series, optimized for audio and AV equipment applications. It provides 330 µF capacitance at a 50 V rating in a compact φ10 × 16 mm can with 5 mm lead spacing for through-hole designs.

Designed for reliable audio performance, this polarized capacitor combines a low loss tangent and rated ripple current capability with a -40 °C to +85 °C operating range and 2000-hour endurance at 85 °C for stable long-term operation in consumer and professional audio assemblies.

Key Features

• Capacitance & Voltage — 330 µF nominal capacitance with a 50 V rated voltage and ±20% tolerance (120 Hz, 20 °C).
• Low Loss (tan δ) — tan δ max = 0.12 at 50 V (measured at 120 Hz, 20 °C) to help preserve signal integrity in audio paths.
• Ripple Current Capability — Rated ripple current of 570 mA at 120 Hz (low frequency) and 855 mA at 10 kHz (high frequency) to handle filtering and decoupling in power stages.
• Leakage Current — Specified leakage current of 495 µA (consistent with 0.03·C·V after 1 minute at 20 °C), supporting predictable bias behavior.
• Thermal & Endurance — Operating temperature range −40 °C to +85 °C and endurance of 2000 hours at 85 °C with defined limits for capacitance change, tan δ, and leakage current.
• Mechanical & Packaging — Compact radial can (φ10 × 16 mm) with 5 mm lead spacing (±0.5 mm); available in bulk (no terminal forming) and bag packing. Polarized radial-lead mounting for through-hole assembly.
• Regulatory — RoHS compliant.

Typical Applications

• Audio and AV equipment — Bulk filtering, power supply smoothing and decoupling in amplifiers, mixers, and consumer AV gear where reliable audio performance is required.
• Power filtering for audio circuits — Supports reservoir and decoupling roles in preamplifier and power amplifier stages thanks to its ripple current handling.
• Replacement and repair — Compact radial can and standard lead spacing make it suitable for service and refurbishment of existing audio assemblies.

Unique Advantages

• Audio-focused electrolyte development — Series-level design notes highlight electrolyte formulation aimed at balanced sound quality, making this part appropriate for AV and audio applications.
• Measurable loss and leakage characteristics — Defined tan δ and leakage current specs allow predictable design margins for signal paths and bias networks.
• Dual-frequency ripple capability — Rated ripple current specified for both low (120 Hz) and high (10 kHz) frequencies, enabling designers to size the part for both mains-derived and switching-related ripple.
• Durability in elevated ambient — 2000-hour endurance at 85 °C provides a clear reliability target for designs exposed to sustained elevated temperatures.
• Compact through-hole package — φ10 × 16 mm radial can with 5 mm lead spacing simplifies PCB layout for legacy and new through-hole designs.
• RoHS compliance — Meets RoHS directive requirements for materials.

Why Choose UKW1H331MPD?

UKW1H331MPD is positioned for engineers and procurement teams seeking a compact, through-hole aluminum electrolytic capacitor tailored for audio and AV applications. Its combination of 330 µF capacitance, 50 V rating, quantified loss (tan δ), and ripple current specifications makes it straightforward to predict performance in power filtering and decoupling roles.

With a −40 °C to +85 °C operating window, 2000-hour endurance at 85 °C, and RoHS compliance, this part offers clear performance and regulatory data that supports durable, serviceable designs and repair workflows in consumer and professional audio equipment.

To request pricing or availability for UKW1H331MPD, please submit a quote request or contact sales with your quantity and delivery requirements.