UKL1C331MPD

The UKL1C331MPD is a Nichicon UKL series aluminum electrolytic capacitor in a radial‑lead can, providing 330 µF capacitance at a 16 V rating with polarized construction. It is part of Nichicon’s low leakage current UKL family and is suited for audio‑related circuit functions where electrolytic capacitance and controlled leakage are important.

This part is designated End Of Life; request current availability and lead time when evaluating it for retrofit or replacement in existing designs.

Key Features

• Capacitance & Voltage — 330 µF capacitance rated at 16 V, with a ±20% tolerance suitable for bulk energy storage and filtering in low‑voltage circuits.
• Low Leakage Performance — Part of the UKL low leakage series; typical leakage current calculated at 10.56 µA (0.002 × C × V) after rated voltage application, aiding in long‑term charge retention.
• Loss Angle (tan δ) — tan δ of 0.14 measured at 20°C, 120 Hz for the φ10 × 16 case size, supporting predictable AC loss characteristics.
• Ripple Current Capability — Rated ripple current of 420 mA at 120 Hz (low frequency) and 630 mA at 10 kHz (high frequency), enabling effective smoothing of supply ripple across audio bandwidths.
• Thermal and Endurance Ratings — Operating temperature range from −40°C to +85°C with endurance of 2000 hours at 85°C under rated voltage, suitable for many commercial audio environments.
• Package & Mounting — Compact φ10 × 16 mm aluminum can with radial leads, 5 mm lead spacing (±0.5 mm), provided in bulk or bag packing for through‑hole assembly.
• Regulatory — RoHS compliant as stated in the product data.

Typical Applications

• Audio Power Supply Filtering — Bulk reservoir and smoothing capacitor in audio power supplies, leveraging 330 µF capacitance and rated ripple currents to reduce hum and supply ripple.
• Audio Amplifier Supply Decoupling — Local decoupling for amplifier stages where low leakage and stable tan δ improve bias stability and reduce drift over time.
• Audio Signal Conditioning Support — Use where polarized electrolytic capacitance is required for coupling or energy storage in audio subsystems, with temperature and endurance specs appropriate for commercial equipment.

Unique Advantages

• Low Leakage Behavior: Supports circuits that require minimal leakage current to maintain bias levels and reduce DC drift.
• High Ripple Handling for Size: Delivers 420 mA at 120 Hz and 630 mA at 10 kHz from a compact φ10 × 16 mm package, balancing ripple performance with small footprint.
• Compact Through‑Hole Form Factor: Radial leaded aluminum can with 5 mm lead spacing simplifies replacement and prototyping in through‑hole designs.
• Temperature and Endurance Specification: Rated for −40°C to +85°C and 2000 hours at 85°C, providing predictable aging behavior for commercial audio hardware.
• RoHS Compliance: Meets RoHS requirements for designs requiring lead‑free component selection.

Why Choose UKL1C331MPD?

The UKL1C331MPD combines a practical 330 µF / 16 V rating with Nichicon’s UKL series low leakage characteristics and measurable AC performance (tan δ = 0.14 at 20°C, 120 Hz). Its radial lead package and compact φ10 × 16 mm size make it straightforward to integrate into existing through‑hole boards where controlled leakage and ripple handling are priorities.

This capacitor is suited for engineers maintaining or repairing audio equipment and designers evaluating established electrolytic solutions for power supply smoothing and decoupling. Verify availability and suitability against your design’s lifecycle needs before specifying, given the product’s End Of Life designation.

Request a quote or contact sales to confirm current availability, pricing, and lead time for UKL1C331MPD.