UFW1H330MDD

The UFW1H330MDD is a Nichicon UFW-series aluminum electrolytic capacitor in a radial-leaded can, rated 33 µF at 50 V with a ±20% tolerance. Designed for audio applications, it delivers controlled loss (tan δ) and measurable ripple-current capability for decoupling and supply smoothing in compact audio circuits.

Its combination of a 50 V rating, 33 µF capacitance and a φ5 × 11 mm can size with 2 mm lead spacing makes it suitable for board-level radial installations where small footprint and predictable electrochemical performance are required.

Key Features

• Capacitance & Voltage — 33 µF capacitance at a rated voltage of 50 V with ±20% tolerance for predictable charge storage in audio power rails.
• Low loss for audio — Tangent of loss angle (tan δ) specified at 0.12 (max) measured at 20°C and 120 Hz, supporting lower dissipation in signal-related circuits.
• Ripple current capability — Rated ripple currents of 120 mA at 120 Hz and 240 mA at 10 kHz, with frequency coefficient behavior applicable to 33–47 µF parts, enabling reliable smoothing across low and high ripple frequencies.
• Leakage current — Measured leakage current of 49.5 µA, providing predictable standby current behavior in bias and power-supply designs.
• Endurance and temperature range — 2000 hours endurance at 85°C and an operating temperature range of −40°C to +85°C for sustained performance in typical audio environments.
• Radial lead package — φ5 × 11 mm can with 2 mm lead spacing and radial lead termination for through-hole assembly and easy handling in bulk/bag packing.
• Polarized design — Polar aluminum electrolytic construction for use where polarized capacitance is required.

Typical Applications

• Audio equipment — Power-supply decoupling, smoothing and local energy storage in preamplifiers, amplifiers and audio-processing modules.
• Signal coupling and filtering — Use in coupling networks and low-frequency filtering stages where stable capacitance and controlled tan δ matter for audio fidelity.
• Board-level power rails — Local bulk capacitance for small, through-hole boards requiring compact radial electrolytics with known ripple and leakage characteristics.

Unique Advantages

• Audio-oriented loss characteristics — Specified tan δ of 0.12 at 50 V, 120 Hz helps minimize dissipation in audio signal and power-path applications.
• Clear ripple performance — Defined ripple-current ratings at both low and high frequencies (120 mA at 120 Hz; 240 mA at 10 kHz) allow designers to size capacitors against expected AC stress accurately.
• Predictable leakage — Measured leakage current value supports power-budgeting and bias stability in sensitive circuits.
• Compact radial form factor — φ5 × 11 mm can with 2 mm lead spacing provides a small footprint for through-hole implementations without sacrificing specified endurance.
• Endurance rating — 2000 hours at 85°C gives a defined lifetime expectation for thermal and electrical stress planning.

Why Choose UFW1H330MDD?

The UFW1H330MDD combines audio-focused electrical characteristics—moderate capacitance at a 50 V rating, controlled tan δ, defined ripple-current capability and low leakage—in a compact radial electrolytic package. It is positioned for designers who need a through-hole capacitor with clearly specified behavior for power decoupling, coupling and filtering in audio and related electronics.

Manufactured by Nichicon, this part provides specification-driven selection for teams that prioritize verifiable endurance, temperature range and ripple handling when designing board-level audio power and signal circuits.

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