UFW1J331MPD

The UFW1J331MPD is a radial-lead aluminum electrolytic capacitor from Nichicon’s UFW series, designed for audio equipment and related electronic products. It provides 330 µF capacitance at a 63 V rating in a compact φ10 × 20 mm radial can with 5 mm lead spacing.

Engineered for power smoothing and decoupling in audio applications, this part combines a ±20% capacitance tolerance, specified leakage current, and defined ripple current ratings to support reliable performance across the -40°C to 85°C operating range.

Key Features

• Capacitance & Voltage: 330 µF nominal capacitance rated at 63 V for energy storage and decoupling in medium-voltage audio circuits.
• Tolerance: ±20% at 120 Hz, 20°C, providing predictable capacitance for design calculations and frequency-response planning.
• Ripple Current Capability: 650 mA at 120 Hz (low frequency) and 975 mA at 10 kHz (high frequency), enabling effective filtering under both mains-frequency and high-frequency load conditions.
• Leakage Current: Specified leakage current of 623.7 µA, useful for power-loss and standby-current budgeting.
• Endurance: 2000 hours at 85°C, with defined post-test limits for capacitance change, tan δ, and leakage current to support lifetime planning.
• Temperature Range: Rated for operation from -40°C to 85°C to cover a broad set of indoor and equipment-level environments.
• Form Factor & Mounting: Radial lead, can-style package (φ10 × 20 mm) with 5 mm lead spacing for through-hole PCB layouts and robust mechanical mounting.

Typical Applications

• Audio Equipment: Suited for power supply filtering and decoupling in amplifiers, mixers, and consumer audio systems where the UFW series is specified for audio.
• Power Supply Smoothing: Used to stabilize rail voltages and reduce ripple in medium-voltage DC supplies within audio and related electronics.
• Signal Conditioning: Employed where bulk capacitance and measured leakage and ripple specifications are required for predictable circuit behavior.

Unique Advantages

• Audio-focused series: Part of Nichicon’s UFW lineup, explicitly specified for audio equipment, simplifying selection for audio-focused designs.
• Balanced ripple performance: Separate ripple current ratings at 120 Hz and 10 kHz allow designers to assess performance across typical low- and high-frequency stresses.
• Defined endurance: 2000 hours at 85°C with post-test limits gives a clear basis for lifecycle and replacement planning.
• Compact radial can: φ10 × 20 mm package with 5 mm lead spacing fits space-constrained PCBs while providing through-hole mechanical robustness.
• Wide operating temperature: -40°C to 85°C supports reliable operation across varied indoor and equipment environments.

Why Choose UFW1J331MPD?

The UFW1J331MPD positions itself as a practical, specification-driven capacitor for audio and power-filtering applications where a 63 V, 330 µF radial electrolytic is required. Its documented ripple ratings, leakage current, and 2000-hour endurance at 85°C provide the measurable parameters engineers need for reliable designs and lifetime planning.

This part is well suited to designers and procurement teams specifying components for audio equipment and medium-voltage DC power rails who require a compact through-hole can with clear, manufacturer-provided electrical and endurance data from Nichicon’s UFW series.

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