UUN1E331MNQ1MS

The UUN1E331MNQ1MS is a chip‑type, bi‑polarized aluminum electrolytic capacitor in a surface‑mount radial can package from Nichicon's UUN series. It delivers a 330 µF capacitance at 25 V in a compact SMD form factor designed for high‑density PCB assembly.

Engineered for general‑purpose power and signal applications, this capacitor offers wide operating temperature performance (−55 °C to +105 °C), RoHS compliance, and a 2000‑hour endurance rating at 105 °C, making it suitable for designs that require higher capacitance in a space‑efficient SMD package.

Key Features

• Capacitance & Rated Voltage — 330 µF capacitance at a 25 V rated voltage with ±20% tolerance (120 Hz, 20 °C), providing energy storage and filtering capacity for power rails and decoupling.
• Bi‑Polarized Design — Bi‑polarized construction and endurance testing with polarity inversion every 250 hours indicate suitability where polarity may vary or invert during operation.
• Compact SMD Package — Chip‑type radial can SMD package sized L: 1.65 × D: 1.6 cm with recommended land size L: 1.63 × W: 1.63 cm for automatic placement with carrier tape.
• Wide Temperature Range — Rated for −55 °C to +105 °C operation, addressing applications with broad thermal requirements.
• High‑Temperature Endurance — Endurance specified as 2000 hours at 105 °C with post‑test limits: capacitance change within ±20%, tan δ ≤ 200% of initial, and leakage current ≤ initial specification.
• Ripple Current Handling — Rated ripple current of 370 mA at 120 Hz and 555 mA at 10 kHz; frequency multiplication factors (100–470 µF range) apply across 50 Hz–10 kHz bands for design scaling.
• Leakage & Dissipation — Leakage current specified as ≤ 0.03CV (µA) after 1 minute at 20 °C; tan δ (loss factor) max for 25 V is 0.16 (120 Hz, 20 °C), supporting predictable loss and dissipation planning.
• RoHS Compliant — Meets RoHS directive (2011/65/EU, (EU)2015/863) requirements for restricted substances.

Typical Applications

• Power Supply Filtering — Bulk and smoothing capacitor for DC rails where higher capacitance and stable performance up to 105 °C are required.
• AC Coupling / Signal Networks — Bi‑polarized construction supports circuits where polarity can reverse, such as coupling stages and bipolar signal paths.
• Industrial and Instrumentation Electronics — Energy storage and decoupling in control, measurement, and communication modules that operate across a wide temperature range.
• High‑Density PCB Designs — Compact chip‑type SMD package enables placement in space‑constrained board layouts and automated assembly with carrier tape.

Unique Advantages

• Higher Capacitance in Compact SMD Form — 330 µF in a chip‑type radial can provides significant energy density for footprint‑limited designs.
• Robust Thermal Endurance — 2000 hours at 105 °C endurance specification gives predictable long‑term behavior in elevated‑temperature environments.
• Bipolar Compatibility — Designed and tested for polarity inversion, reducing constraints for AC‑coupled and bidirectional circuits.
• Predictable Ripple Performance — Published ripple current ratings at 120 Hz and 10 kHz plus frequency coefficients for the 100–470 µF range allow accurate thermal and ripple budgeting.
• Manufacturing‑Friendly — Form factor and carrier‑tape compatibility facilitate automated surface‑mount placement and yield‑oriented assembly processes.
• Standards‑Oriented Specification — Clear leakage current and tan δ limits enable straightforward validation against system requirements.

Why Choose UUN1E331MNQ1MS?

The UUN1E331MNQ1MS positions itself as a practical choice when you need higher capacitance in a surface‑mount aluminum electrolytic with bi‑polarized capability and validated high‑temperature endurance. Its combination of 330 µF capacitance, 25 V rating, and compact chip package suits engineers designing power filtering, decoupling, and AC‑coupled circuits on dense PCBs.

With defined electrical parameters—leakage current, tan δ, ripple current ratings, and published frequency coefficients—this capacitor enables predictable thermal and electrical design margins, simplifying component selection for long‑life, temperature‑stressed applications.

Request a quote or submit a pricing inquiry to receive availability and lead‑time information for UUN1E331MNQ1MS.