UFG2A331MHM

The UFG2A331MHM is a 330 µF, 100 V aluminum electrolytic capacitor from Nichicon's UFG "Fine Gold" MUSE acoustic series, engineered for high-grade audio and AV equipment. It is a radial-lead, polarized can-style capacitor designed to provide reliable smoothing, coupling and power filtering in audio circuits while emphasizing rich bass and clearer high-end reproduction.

This part offers a combination of high voltage rating, audible-performance-focused construction and defined reliability characteristics — making it suitable for designers specifying audio-centric passive components with verifiable electrical and endurance parameters.

Key Features

• Audio-focused series: Part of Nichicon's "Fine Gold" MUSE acoustic UFG series, using etching techniques intended to produce richer bass and clearer high-end performance in AV and high-grade audio equipment.
• Electrical rating: 330 µF nominal capacitance at a 100 V rated voltage, with capacitance tolerance of ±20% (−20% to +20%).
• Ripple current capability: Rated ripple currents of 734 mA at 120 Hz and 1.101 A at 10 kHz, supporting power-supply smoothing and decoupling in audio power stages.
• Temperature and endurance: Operating temperature range −40 °C to +85 °C and endurance specified as 1000 hours at 85 °C with the rated voltage applied.
• Low-loss characteristics: Series tan δ specification at 120 Hz/20 °C for 100 V units is 0.08 (max), supporting low-loss performance in audio signal paths.
• Low-temperature stability: Impedance ratios for the series at 100 V are Z(−25 °C)/Z(+20 °C) = 2 and Z(−40 °C)/Z(+20 °C) = 3, indicating maintained performance across cold environments.
• Package and mounting: Radial lead, can-style package with 7.5 mm lead spacing and physical size L: 3.05 × D: 1.6 cm for through-hole PCB mounting.
• Regulatory compliance: RoHS compliant (2011/65/EU, (EU)2015/863).
• Identification: Marked with black lettering on a gold sleeve for clear visual identification.

Typical Applications

• High-end audio amplifiers: Power supply smoothing and output-stage decoupling where audible performance and high voltage capability are required.
• AV receivers and home theater systems: Bulk filtering and decoupling in multi-channel power supplies to support dynamic bass and clear high-frequency detail.
• Audio preamps and signal electronics: Coupling and local supply stabilization in signal paths where low loss and audio character are priorities.
• General-purpose audio equipment: Use in professional and consumer AV devices that benefit from the UFG series’ acoustic tuning and defined endurance.

Unique Advantages

• Audio-tailored construction: The "Fine Gold" MUSE acoustic series is specified to enhance bass richness and high-end clarity, aligning component behavior with audio quality goals.
• High-voltage headroom: A 100 V rating provides extra margin for power stages and supplies in demanding audio designs.
• Verified ripple handling: Defined ripple current ratings at both 120 Hz and 10 kHz allow designers to match capacitor selection to expected supply ripple spectra.
• Temperature and endurance specifications: −40 °C to +85 °C operation and 1000 hours endurance at 85 °C with rated voltage provide clear reliability expectations for product qualification and lifetime planning.
• Low-loss and stability data: Series tan δ and impedance-ratio specifications give measurable parameters for signal-path and low-temperature performance validation.
• RoHS compliance: Meets applicable RoHS directives for restricted substances, simplifying regulatory tracking for compliant product lines.

Why Choose UFG2A331MHM?

UFG2A331MHM positions itself as a component for audio-focused designs that need a proven electrolytic solution with clear electrical, thermal and endurance specifications. Its combination of 330 µF capacitance, 100 V rating, defined ripple current capability and the UFG-series acoustic tuning makes it appropriate for AV and high-grade audio equipment where both electrical performance and audible characteristics matter.

Designers and procurement teams will find verifiable datasheet parameters — including tolerance, tan δ, low-temperature impedance ratios and 1000-hour endurance at 85 °C — useful for component selection, validation and long-term reliability planning.

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