UKL2A331MHD

The UKL2A331MHD is a Nichicon UKL series aluminum electrolytic capacitor designed for low leakage current in a radial-lead can package. With a 330 µF capacitance at a 100 V rating, this part targets audio and related applications that require high-voltage smoothing and stable performance under ripple stress.

Key value comes from a combination of low leakage, measurable ripple current capability at both low and high frequencies, and an established endurance rating for elevated-temperature operation.

Key Features

• Capacitance & Tolerance — 330 µF nominal capacitance with ±20% tolerance at 120 Hz, 20°C.
• Voltage Rating — Rated for 100 V operation for high-voltage audio and power-rail applications.
• Low Leakage Current — Specified leakage current of 66 µA, supporting low-standby and bias-stable designs.
• Ripple Current Performance — Low-frequency ripple: 730 mA at 120 Hz; high-frequency ripple: 1.095 A at 10 kHz, enabling reliable decoupling across audio-relevant frequencies.
• Reliability & Endurance — Endurance specified as 2000 hours at 85°C under rated voltage, with an operating temperature range of −40°C to 85°C.
• Radial Lead Package — φ16 × 30.5 mm can with 7.5 mm lead spacing (±0.5 mm), mounting via radial leads; available in bulk or bag packing.
• Polarized — Designed as a polarized aluminum electrolytic capacitor for typical DC applications.
• Environmental Compliance — RoHS compliant.
• Lifecycle — Product status: End Of Life; the UKL series is scheduled for discontinuation and is not recommended for new designs.

Typical Applications

• Audio Equipment Power Rails — Suitable for smoothing and decoupling on high-voltage audio power supplies where a 100 V rating and significant ripple handling are required.
• Audio Amplifiers and Preamps — Low leakage current and 330 µF capacitance help maintain stable bias and reduce drift in audio circuits.
• Professional and Consumer Audio Devices — Radial can package and measurable ripple specifications make the part applicable to a range of audio hardware implementations.

Unique Advantages

• Low Standby Drain: The 66 µA leakage current specification helps minimize quiescent losses and preserves bias conditions over time.
• High-Voltage Capability: 100 V rating supports applications with elevated supply rails without series stacking.
• Broad Ripple Handling: Rated ripple current of 730 mA (120 Hz) and 1.095 A (10 kHz) delivers usable filtering performance across low and high audio frequencies.
• Engineered for Elevated Temperature Use: Endurance of 2000 hours at 85°C gives predictable lifetime behavior in warm enclosures and during extended operation.
• Compact Radial Form Factor: φ16 × 30.5 mm can with 7.5 mm lead spacing fits through-hole assemblies and prototyping workflows while offering a high-voltage, high-capacitance option.
• Regulatory Compliance: RoHS compliance supports environmentally restricted designs.

Why Choose UKL2A331MHD?

UKL2A331MHD combines a 330 µF capacitance with a 100 V rating and low leakage performance from Nichicon's UKL series, offering a straightforward, quantifiable component choice for audio-focused designs that require reliable ripple handling and thermal endurance. Its radial-lead can and clear mechanical dimensions make it practical for through-hole boards and repairable assemblies.

Note that this part is End Of Life and the UKL series is scheduled for discontinuation; it is therefore not recommended for new designs but remains a verifiable option where existing designs or replacement stock require a direct-fit low-leakage aluminum electrolytic solution.

If you need pricing, availability, or want to request a quote for UKL2A331MHD, please submit a request or contact sales for further assistance.