UKA1A331MPD

The UKA1A331MPD is a radial-lead aluminum electrolytic capacitor designed for audio applications. It delivers 330 µF capacitance at a 10 V rating in a compact φ8 × 11.5 mm can, optimized for wide temperature operation and long endurance.

Typical use cases include power-supply decoupling and smoothing in high-grade audio equipment where low loss, reliable ripple handling and stable performance across –55°C to 105°C are required.

Key Features

• Electrical performance — 330 µF capacitance at 10 V with ±20% tolerance, suitable for bulk decoupling and smoothing tasks in low-voltage audio circuits.
• Low dissipation factor — tanδ 0.26 (max) measured at 20°C, 120 Hz, supporting efficient energy handling with reduced power loss.
• Ripple current capability — 240 mA at 120 Hz (low frequency) and 360 mA at 10 kHz (high frequency), enabling effective filtering under varying ripple spectra.
• Leakage current — 99 µA specified leakage, supporting predictable bias behavior in sensitive audio circuits.
• Wide temperature and long endurance — rated for operation from –55°C to 105°C with 2000 hours endurance at 105°C, for stable long-term performance in demanding environments.
• Compact radial package — φ8 × 11.5 mm can, 3.5 mm lead spacing, radial lead mounting for through-hole PCB designs and straightforward assembly.
• Polarized, AEC-Q200 rated — polarized aluminum electrolytic design with AEC-Q200 rating for enhanced reliability expectations in qualified applications.
• Packaging and availability — supplied in bulk (bag packing) with mass production status for volume deployment.

Typical Applications

• High-grade audio equipment — power-supply smoothing and decoupling to preserve audio fidelity and minimize power-supply induced noise.
• Audio amplifier circuits — local supply filtering and coupling where compact, reliable capacitance is needed at low voltage.
• Consumer and pro audio electronics — use in boards where wide temperature range and long endurance improve product longevity and consistency.

Unique Advantages

• Stable performance across temperature: –55°C to 105°C rating ensures predictable behavior in both cold and hot operating conditions.
• Designed for long-term reliability: 2000-hour endurance at 105°C provides durability for products with extended life requirements.
• High ripple handling: Specified ripple currents at both low and high frequencies support effective filtering across common audio ripple spectra.
• Compact form factor: φ8 × 11.5 mm radial can and 3.5 mm lead spacing save PCB space while enabling through-hole mounting options.
• Lower loss characteristic: tanδ 0.26 at 120 Hz helps reduce dissipation in audio power stages and decoupling networks.
• AEC-Q200 rating: Provides an added level of component qualification for reliability-focused designs.

Why Choose UKA1A331MPD?

The UKA1A331MPD combines a moderate capacitance (330 µF) and low-voltage rating (10 V) with a compact radial can, making it a focused choice for designers of high-grade audio equipment and amplifier modules that require dependable smoothing and decoupling. Its specified ripple currents, low dissipation factor and controlled leakage support stable, low-noise power delivery.

With wide operating temperature range, 2000-hour endurance at 105°C and AEC-Q200 rating, this part is suited to designs where long-term robustness and predictable electrical behavior matter. Bulk bag packing and mass production status facilitate volume sourcing for production programs.

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