UKA1E331MPD

The UKA1E331MPD from Nichicon is an aluminum electrolytic capacitor in the UKA series, built for high-grade audio equipment. It is a radial lead, polarized can-type capacitor with a rated capacitance of 330 µF and a rated voltage of 25 V.

Designed for demanding temperature environments, the part supports a wide operating range from −55 °C to +105 °C and offers long-term endurance performance, making it suitable for audio systems that require reliable smoothing, decoupling, and energy buffering under varying conditions.

Key Features

• Capacitance & Voltage — 330 µF nominal capacitance with a rated voltage of 25 V; capacitance tolerance is ±20% (measured at 120 Hz, 20 °C).
• Wide Temperature Range — Rated for operation from −55 °C to +105 °C, enabling use across extremes of ambient temperature.
• Endurance — Specified for 2000 hours of operation at 105 °C with defined limits for capacitance change, loss tangent, and leakage current after the test.
• Ripple Current Capability — Rated ripple current of 290 mA at 120 Hz and 435 mA at 10 kHz, useful for handling AC ripple in audio power circuits.
• Reliability Standard — AEC‑Q200 rating indicated in the product data, reflecting qualification for demanding reliability requirements.
• Leakage Current Specification — Leakage current limits of not more than 0.03CV (µA) after 1 minute and 0.01CV (µA) after 2 minutes (at 20 °C), where I = leakage current, C = rated capacitance, V = rated voltage.
• Electrical Loss (tan δ) — Maximum tan δ is 0.18 at the 25 V rating (measured at 120 Hz, 20 °C).
• Compact Radial Package — Radial, can-style package with lead spacing of 3.5 mm and dimensions L: 1.15 cm × D: 0.8 cm; marked with black lettering on a pearl blue sleeve for easy identification.

Typical Applications

• High‑grade audio equipment — Designed expressly for audio use where 330 µF at 25 V, wide temperature range, and specified ripple handling are required.
• Audio amplifier supply decoupling — Supports smoothing and decoupling tasks in amplifier power rails, leveraging its ripple current capability and endurance.
• Audio system power buffering — Provides bulk energy storage in audio circuits that demand stable capacitance across temperature extremes.

Unique Advantages

• Engineered for audio — Explicit design focus on high‑grade audio equipment ensures the part’s electrical and thermal attributes match audio system needs.
• Wide operating temperature — −55 °C to +105 °C range reduces the need for thermal derating in harsh environments.
• Long high‑temperature endurance — 2000 hours at 105 °C provides predictable long‑term performance for continuous operation.
• Defined leakage and loss specs — Clear leakage current and tan δ limits aid predictable circuit behavior and simpler validation.
• Radial can convenience — Compact L × D footprint and 3.5 mm lead spacing simplify board placement in through‑hole assemblies.
• AEC‑Q200 rating — Qualification noted in product data for applications that require enhanced component reliability.

Why Choose UKA1E331MPD?

The UKA1E331MPD combines audio-focused engineering with clear, verifiable electrical and environmental specifications. Its 330 µF/25 V rating, defined leakage and loss characteristics, and ripple current capability make it a practical choice for designers specifying capacitors for audio power rails, decoupling, and buffering where temperature extremes and long endurance matter.

This component suits engineers and procurement teams looking for a compact, radial-lead electrolytic capacitor from Nichicon’s UKA series that balances performance, durability, and traceable specifications—backed by documented endurance and AEC‑Q200 qualification in the product data.

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