UKL1V331KHD

The UKL1V331KHD is an aluminum electrolytic capacitor in a radial‑lead can, offering 330 µF capacitance with ±10% tolerance at a rated voltage of 35 V. It belongs to Nichicon’s UKL low‑leakage series and is targeted at audio applications where low leakage and reliable ripple handling are important.

Key electrical characteristics include low leakage current (23.1 µA), rated ripple current of 550 mA at 120 Hz and 825 mA at 10 kHz, and a 2000‑hour endurance rating at 85 °C. Note: this part is listed as End Of Life and the UKL series datasheet indicates products in the series are scheduled for discontinuation and are not recommended for new designs.

Key Features

• Capacitance & Voltage — 330 µF nominal capacitance with ±10% tolerance at a rated voltage of 35 V, suitable for energy storage and smoothing in DC supply circuits.
• Low Leakage — Specified leakage current of 23.1 µA, helping minimize DC bias drift in sensitive audio circuits.
• Ripple Current Performance — Low‑frequency ripple current 550 mA (120 Hz) and high‑frequency ripple current 825 mA (10 kHz) to support filtering and decoupling across audio frequency ranges.
• Endurance & Temperature — Rated for 2000 hours at 85 °C with an operating temperature range of −40 °C to 85 °C, for sustained operation in warm environments.
• Package & Mounting — Radial lead (polar) can; physical size φ12.5×20 mm (L), lead spacing 5 mm with ±0.5 mm tolerance; available in bulk (no terminal forming) or bag packing.
• Regulatory — RoHS compliant.

Typical Applications

• Audio Power Supplies — Bulk smoothing and ripple suppression in power rails for audio equipment, leveraging the capacitor’s ripple current capability and capacitance.
• Audio Amplifiers — Supply decoupling and energy buffering in amplifier circuits where low leakage supports stable biasing.
• Consumer Audio Electronics — Through‑hole radial package for use in assembled boards and repair applications within audio devices.

Unique Advantages

• Reduced bias drift: The low leakage current (23.1 µA) helps maintain stable DC conditions in audio signal paths and bias networks.
• Frequency‑span ripple handling: Specified ripple currents at both 120 Hz and 10 kHz (550 mA and 825 mA respectively) provide predictable filtering performance across low and high frequency ripple sources.
• Compact, through‑hole form factor: φ12.5×20 mm radial can with 5 mm lead spacing supports PCB layouts that require durable through‑hole components.
• Thermal endurance: 2000 hours at 85 °C rating supports reliable operation in enclosed audio equipment and warm operating conditions.
• Environmentally compliant: RoHS compliance simplifies integration into designs that must meet environmental regulations.

Why Choose UKL1V331KHD?

UKL1V331KHD combines a practical 330 µF/35 V specification with low leakage and defined ripple current ratings to address common needs in audio power and amplifier circuits. Its radial can package and modest footprint make it suitable for through‑hole assemblies and repair applications where a low‑leakage electrolytic is required.

This part is appropriate for designers and technicians working on existing audio hardware that requires a dependable low‑leakage electrolytic with known ripple performance. Given the series lifecycle status, verify availability and plan for end‑of‑life considerations in future designs.

Request a quote or contact the sales team to check current availability, lead times, and packaging options for UKL1V331KHD.