UHD1V331MPD

The UHD1V331MPD is a radial-lead aluminum electrolytic capacitor from Nichicon's UHD series, designed for general-purpose electronics where high ripple handling and low impedance at elevated frequencies are required. It combines a compact φ10 × 16 mm can with a 330 µF capacitance and a 35 V rated voltage to support through-hole power and filtering designs.

Built for reliable operation across a wide temperature range and extended endurance, this part targets applications that need a balance of ripple performance, small case size and long-term stability.

Key Features

• Capacitance & Tolerance: 330 µF with a tolerance of −20% to +20%, specified at 120 Hz, 20°C for predictable charge storage in supply circuits.
• Voltage Rating: 35 V rated voltage suitable for medium-voltage through-hole power rails.
• Low impedance / High-frequency performance: Series characteristics emphasize lower impedance at high frequency, supported by a tangent of loss angle (tan δ) of 0.12 at 20°C, 120 Hz.
• High ripple current capability: Low-frequency ripple current 1.001 A (120 Hz) and high-frequency ripple current 1.43 A (100 kHz) to handle both mains-frequency and switching-frequency ripple.
• Thermal endurance: Rated for operation from −40°C to +105°C with an endurance of 4000 hours at 105°C, enabling sustained performance in elevated-temperature environments.
• Leakage current: Specified leakage current of 115.5 µA (after standard charge conditions), enabling predictable quiescent behavior in power designs.
• Radial through-hole package: φ10 × 16 mm aluminum can with 5.0 mm lead spacing (±0.5 mm), delivered in bulk or bag packing for PCB assembly flexibility.
• RoHS compliant: Meets RoHS environmental requirements as indicated for the UHD series.

Typical Applications

• Power supply smoothing: 330 µF at 35 V with defined ripple current ratings provides bulk smoothing for intermediate and output rails.
• Switching regulator output filtering: Low impedance at higher frequencies and a 1.43 A ripple rating at 100 kHz support switching-frequency decoupling and filtering.
• General-purpose electronics: Designed for through-hole assemblies requiring a compact, reliable aluminum electrolytic for energy storage and transient suppression.

Unique Advantages

• Compact high-capacity package: φ10 × 16 mm can delivers 330 µF in a small through-hole footprint to save board space.
• Dual-frequency ripple handling: Rated ripple currents at both 120 Hz and 100 kHz provide design flexibility across legacy and switching-power applications.
• Extended high-temperature life: 4000-hour endurance at 105°C supports long-term reliability in thermally demanding environments.
• Predictable electrical characteristics: Specified tan δ and leakage current values enable accurate modeling of losses and standby behavior in power budgets.
• Assembly-ready lead format: Radial lead spacing of 5.0 mm with ±0.5 mm tolerance and bulk/bag packaging facilitate standard through-hole manufacturing processes.
• Regulatory compliance: RoHS status supports environmental requirement alignment for commercial electronics production.

Why Choose UHD1V331MPD?

The UHD1V331MPD offers a practical combination of capacitance, voltage rating and ripple capability in a compact radial-lead can. Its low-impedance behavior at higher frequencies, defined ripple current ratings at both mains and switching frequencies, and 4000-hour endurance at 105°C make it well suited for designers needing reliable smoothing and decoupling in through-hole power designs.

This part is appropriate for engineers and procurement teams specifying general-purpose electrolytic capacitors for industrial and commercial electronics where predictable electrical performance, compact size and long-term thermal endurance are required.

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