UES1E331MHM

The UES1E331MHM is a bi‑polarized aluminum electrolytic capacitor from Nichicon's UES "MUSE" acoustic series, designed specifically for audio equipment and audio signal circuits. It delivers 330 µF at a 25 V rating in a radial can package, offering a compact option for designers targeting acoustic and audio signal applications.

Key attributes include bi‑polar construction, RoHS compliance, and electrical and environmental specifications tuned for audio use and general equipment environments from −40°C to +85°C.

Key Features

• Electrical — 330 µF rated capacitance with a 25 V voltage rating and ±20% capacitance tolerance (measured at 120 Hz, 20°C).
• Bi‑Polarized Design — Part of the Nichicon MUSE acoustic series explicitly suited for audio signal circuits, enabling use in applications that require bi‑polar capacitor characteristics.
• Loss and Leakage — tan δ up to 0.16 (max.) at 25 V, measured at 120 Hz and 20°C; leakage current listed as 247.5 µA (at 20°C after 1 minute) for the 25 V, 330 µF variant.
• Low‑temperature Stability — Impedance ratios: Z(−25°C)/Z(+20°C) = 2 and Z(−40°C)/Z(+20°C) = 4 (rated voltage conditions), measured at 120 Hz.
• Reliability & Endurance — Specified endurance: rated voltage applied for 1000 hours at 85°C with polarity inversion every 250 hours; after recovery to 20°C, capacitance change within ±20%, tan δ ≤150% of initial value, and leakage current ≤ initial specified value.
• Package & Mounting — Radial lead, can‑style package with 5 mm lead spacing and case dimensions φ12.5 × 25 mm (L: 2.5 cm × D: 1.25 cm).
• Environmental Compliance — Compliant with the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Audio Signal Circuits — Designed for use in audio paths where bi‑polarized capacitor behavior and the acoustic‑focused MUSE series characteristics are required.
• Audio Equipment — Suitable for general audio equipment designs that require a 330 µF, 25 V bi‑polarized electrolytic with specified endurance at elevated temperatures.
• Acoustic Systems — Targeted at acoustic applications within consumer or professional audio products leveraging the MUSE acoustic series.

Unique Advantages

• Audio‑focused MUSE Series — Part of Nichicon’s MUSE acoustic lineup, explicitly positioned for audio signal use.
• Bi‑polarized Construction — Suited for circuits that require bi‑polar capacitor characteristics as called out in the product description.
• Measured Low Loss at Audio Frequencies — tan δ specified at 0.16 max for 25 V (measured at 120 Hz, 20°C), supporting lower loss behavior under those test conditions.
• Defined Leakage Performance — Leakage current specified (247.5 µA for this value) after 1 minute at 20°C, providing predictable behavior for design validation.
• Robust Temperature and Endurance Specs — Rated for −40°C to +85°C with a 1000 hour endurance test at 85°C (polarity inverted every 250 hours) and clear post‑test acceptance criteria.
• Compact Radial Can Package — φ12.5 × 25 mm can with 5 mm lead spacing for through‑hole radial mounting in space‑constrained audio assemblies.

Why Choose UES1E331MHM?

UES1E331MHM combines Nichicon’s MUSE acoustic series pedigree with a bi‑polar aluminum electrolytic design tailored for audio signal circuits. Its 330 µF / 25 V rating, defined loss and leakage characteristics, and specified endurance at elevated temperature make it a straightforward choice for designers building audio equipment and acoustic systems that require predictable capacitor performance.

This part is well suited to engineers and procurement teams seeking a RoHS‑compliant, through‑hole radial capacitor with audio‑focused specifications, clear low‑temperature impedance behavior, and formal endurance data for life‑cycle planning.

Request a quote or submit a sales inquiry to obtain pricing, lead time, or additional technical information for UES1E331MHM.