UHW1J391MPD

The UHW1J391MPD is a Nichicon UHW series radial lead aluminum electrolytic capacitor offering 390 µF capacitance at a 63 V rating. It provides a compact φ10 × 30.5 mm can with 5 mm lead spacing, designed for general-purpose electronic designs that require high ripple handling, low impedance, and extended endurance.

Key value propositions include high ripple-current capability at both low and high frequencies, low impedance (180 mΩ), long life at elevated temperature (12,000 hours at 105°C), and RoHS compliance, making it suitable for continuous-operation power filtering and decoupling in space-constrained assemblies.

Key Features

• Capacitance & Tolerance — 390 µF nominal capacitance with tolerance of −20% to +20% (measured at 20°C, 120 Hz).
• Voltage & Polarization — Rated for 63 V DC; polarized electrolytic construction for standard DC power applications.
• High Ripple Current — Low-frequency ripple current 1.025 A at 120 Hz and high-frequency ripple current 2.05 A at 100 kHz, supporting high ripple applications.
• Low Impedance — Typical impedance 180 mΩ, with lower impedance maintained into high-frequency ranges per the UHW series design.
• Thermal Endurance — Operates from −40°C to +105°C with rated endurance of 12,000 hours at 105°C.
• Leakage & Loss — Specified leakage current 245.7 µA and tangent of loss angle (tan δ) 0.09 at 20°C, 120 Hz.
• Package & Mounting — Radial lead (can) package, size φ10 × 30.5 mm, lead spacing 5 mm (±0.5 mm); packaged in bulk/bag (no terminal forming).
• Regulatory — RoHS compliant.

Typical Applications

• Power supply filtering and decoupling — Compact radial package plus high ripple-current ratings support smoothing and decoupling on DC power rails.
• General-purpose electronics — Suitable for a broad range of consumer and industrial/general-purpose circuits that require reliable bulk capacitance.
• Space-constrained boards — Small φ10 mm diameter and moderate length make it suitable where PCB real estate is limited but higher capacitance is required.

Unique Advantages

• High ripple capability: Specified 1.025 A at 120 Hz and 2.05 A at 100 kHz lets designs tolerate elevated AC stress on the capacitor.
• Compact, low-impedance solution: 390 µF in a φ10 × 30.5 mm can with 180 mΩ impedance reduces space and improves transient performance.
• Extended high-temperature life: Rated endurance of 12,000 hours at 105°C provides long-term stability for continuous-duty applications.
• Wide operating range: −40°C to +105°C supports use in environments with broad temperature variation.
• Radial lead convenience: Through-hole radial lead mounting simplifies prototyping and repair and fits established assembly processes.
• Regulatory compliance: RoHS status supports environmental and regulatory requirements for many projects.

Why Choose UHW1J391MPD?

The UHW1J391MPD balances compact size with high ripple-current capability and long-term endurance, making it a practical choice for general-purpose power filtering and decoupling where board space is constrained. As part of Nichicon’s UHW series, it delivers the series’ emphasis on lower impedance at higher frequencies and durability at elevated temperatures.

This part is offered as a mass-production product and is suited to designers and procurement teams seeking a proven radial lead electrolytic capacitor for continuous-duty and general-purpose electronics applications where verified ripple handling, lifetime at 105°C, and RoHS compliance matter.

Please request a quote or contact sales to discuss pricing, availability, lead times, and suitability for your specific design.