UHW1E331MPD

The UHW1E331MPD is a miniature, high-reliability aluminum electrolytic capacitor from Nichicon's UHW series. It is a radial-lead, polarized capacitor specified at 330 µF and 25 V, designed for general-purpose electronic applications that require compact size, long endurance and robust ripple-handling capability.

Key value comes from a combination of high ripple-current capability, low impedance at higher frequencies, and extended lifetime at elevated temperature, making it suitable for compact power circuits and other general-purpose uses.

Key Features

• Capacitance & Voltage — 330 µF rated capacitance with a 25 V rated voltage and capacitance tolerance of −20% to +20%.
• High ripple-current capability — Specified low-frequency ripple current of 600 mA at 120 Hz and high-frequency ripple current of 1.2 A at 10 kHz to support smoothing and decoupling in power circuits.
• Low impedance — Impedance of 360 mΩ, supporting improved performance at higher frequencies.
• Miniature radial package — Compact dimensions φ8 × 11.5 mm (L: 1.15 × D: 0.8 cm) with radial lead mounting and 3.5 mm lead spacing (±0.5 mm).
• Long endurance at elevated temperature — Rated life of 9,000 hours at 105°C for sustained reliability in warm operating environments.
• Leakage and dissipation — Specified leakage current 82.5 µA and a tangent of loss angle (tan δ) of 0.13 measured at 20°C, 120 Hz.
• Operating range & polarization — Polarized capacitor rated for operation from −40°C to +105°C.
• Packaging & availability — Available in bulk (no terminal forming) or bag packing; status: mass production. RoHS compliant.

Typical Applications

• General-purpose electronic equipment — Provides bulk capacitance and energy storage where compact, radial-lead electrolytics are required.
• Power-supply smoothing and decoupling — High ripple-current ratings (600 mA @120 Hz, 1.2 A @10 kHz) and low impedance (360 mΩ) make it suitable for smoothing and output decoupling in compact power circuits.
• DC–DC converter output filtering — Compact size and high ripple capability support space-constrained converter designs requiring reliable output filtering.
• Industrial and consumer electronics — Long endurance at 105°C and a wide operating temperature range (−40°C to +105°C) support durability in a variety of environments.

Unique Advantages

• Compact footprint with high energy density: φ8 × 11.5 mm size delivers 330 µF capacitance in a small radial can, helping save board space.
• High ripple tolerance across frequencies: Rated ripple currents of 600 mA (120 Hz) and 1.2 A (10 kHz) enable reliable smoothing in both low- and high-frequency power environments.
• Low impedance for improved transient response: 360 mΩ impedance contributes to better high-frequency performance and decoupling effectiveness.
• Designed for long-term operation at elevated temperature: 9,000-hour endurance at 105°C supports extended service life in thermally demanding applications.
• Engineer-ready packaging and supply: Bulk and bag packing options and mass-production status support volume assembly and procurement.
• Regulatory compliance: RoHS compliant for use in equipment requiring restricted-substance conformance.

Why Choose UHW1E331MPD?

The UHW1E331MPD positions itself as a compact, reliable solution for general-purpose power-electronics needs where space is limited but ripple handling and longevity are required. Its combination of 330 µF capacitance at 25 V, low impedance, high ripple-current ratings and 9,000-hour life at 105°C makes it appropriate for designers balancing size, performance and endurance.

Manufactured by Nichicon and offered in readily available packing options, this capacitor suits engineers designing compact power stages, DC–DC converter outputs and other applications that demand a durable radial-lead electrolytic with verifiable electrical and thermal specifications.

If you would like a quote or need pricing and lead-time details for UHW1E331MPD, please request a quote or contact sales to submit your requirements and receive a formal quotation.