UKT1C331MPD

The UKT1C331MPD is a miniature radial-lead aluminum electrolytic capacitor from Nichicon’s UKT series, designed specifically for audio equipment. It delivers a 330 µF capacitance at 16 V in a compact φ8 × 11.5 mm can, optimized for tight PCB layouts and through-hole assembly.

Engineered for robust performance, this capacitor provides wide temperature operation from -55°C to 105°C, 1,000 hours endurance at 105°C, and measurable ripple-current capability across low and high frequencies—making it well suited for power filtering and decoupling in audio circuits.

Key Features

• Electrical Performance — 330 µF nominal capacitance with ±20% tolerance measured at 120 Hz, 20°C; rated voltage 16 V and tangent of loss angle (tan δ) 0.22 at 120 Hz, 20°C.
• Ripple Current Handling — Low-frequency ripple current of 265 mA at 120 Hz and high-frequency ripple current of 397.5 mA at 10 kHz, enabling effective power-supply smoothing and audio-stage decoupling.
• Leakage Current — Specified leakage current of 158.4 µA (measurement condition: 20°C, after 1 minute) with reduced leakage after extended application, supporting low-noise audio performance.
• Reliability & Endurance — Rated for 1,000 hours at 105°C with capacitance change within ±20% and controlled increases in dissipation factor, allowing predictable lifetime performance in heated enclosures.
• Wide Temperature Range — Operates from -55°C to 105°C for stable behavior across demanding environmental conditions commonly encountered in audio equipment.
• Compact Radial Package — φ8 × 11.5 mm can with 3.5 mm lead spacing (±0.5 mm tolerance), radial lead mounting for straightforward through-hole assembly in compact audio designs.
• Qualification & Compliance — Meets AEC‑Q200 rating and is RoHS compliant, supporting applications where recognized component qualification and lead-free compliance are required.
• Packaging Options — Available in bulk (no terminal forming) or bag packing to suit prototyping and production requirements.

Typical Applications

• Audio amplifier power filtering — Bulk decoupling and smoothing on amplifier rails to reduce supply ripple and support stable audio output.
• Signal-path coupling and decoupling — DC blocking and AC coupling in preamplifier and filter stages where compact, polarized capacitance is needed.
• Compact consumer audio equipment — Through-hole mounting in space-constrained designs such as compact receivers, powered speakers, and desktop audio devices.

Unique Advantages

• Miniature footprint with high capacitance — 330 µF in an 8 mm diameter can reduces PCB area while providing the energy storage required for audio power stages.
• Balanced ripple performance — Specified ripple currents at both low (120 Hz) and high (10 kHz) frequencies allow reliable filtering across audio-band and switching-noise components.
• Temperature and endurance rated — Wide -55°C to 105°C range and 1,000 h life at 105°C give predictable long-term behavior in thermally demanding enclosures.
• Through-hole convenience — Radial lead form and standard 3.5 mm lead spacing simplify prototyping and repair-friendly production assembly.
• Industry-recognized qualification — AEC‑Q200 rating and RoHS compliance support regulated designs and environmental compliance needs.

Why Choose UKT1C331MPD?

UKT1C331MPD is positioned for engineers who need compact, reliable polarized capacitance for audio-focused designs. Its combination of 330 µF storage, defined ripple current at multiple frequencies, wide operating temperature, and 1,000-hour endurance at 105°C delivers predictable performance in power filtering, coupling, and decoupling tasks typical of audio equipment.

This part is well suited to designers and procurement teams building compact audio amplifiers, receivers, and other consumer or professional audio devices that require a through-hole capacitor with verified electrical characteristics, environmental compliance, and recognized qualification.

Request a quote or contact sales to discuss pricing, availability, and lead times for UKT1C331MPD.