UHW1J391MHD6

The UHW1J391MHD6 is a radial-lead, miniature aluminum electrolytic capacitor from Nichicon's UHW series, designed for high ripple current and high reliability in general-purpose electronic circuits. It delivers 390 µF at a 63 V rating in a compact φ12.5 × 20 mm can while maintaining low impedance at high frequency.

Targeted for applications that require robust smoothing, decoupling and bulk energy storage in a small footprint, this capacitor balances long endurance, wide operating temperature range and measurable high-frequency performance.

Key Features

• Capacitance & Voltage — 390 µF nominal capacitance with a rated voltage of 63 V and capacitance tolerance of −20% to +20%.
• High Ripple Current Capability — Low-frequency ripple current 995 mA (120 Hz) and high-frequency ripple current 1.99 A (10 kHz), supporting effective smoothing under varying frequency conditions.
• Low Impedance, High-Frequency Performance — Specified impedance of 180 mΩ and a tangent of loss angle (tan δ) of 0.09 at 20°C, 120 Hz, enabling lower loss and better performance at higher frequencies.
• Long Endurance — Rated life of 12,000 hours at 105°C, providing extended operational lifetime under elevated temperature conditions.
• Temperature Range — Rated for operation from −40°C to +105°C for broad environmental compatibility.
• Physical & Mounting — Compact φ12.5 × 20 mm can with 5.0 mm lead spacing (±0.5 mm), radial-lead mounting; available in bulk (no terminal forming) or bag packing for production use.
• Leakage & Polarization — Polarized aluminum electrolytic capacitor with measured leakage current of 245.7 µA under specified conditions.
• Regulatory — RoHS compliant.

Typical Applications

• Power supply smoothing — Provides bulk energy storage and ripple reduction in DC power supplies where 63 V rating and high ripple current handling are required.
• DC–DC converter output filtering — Suitable for output-side filtering where compact size and low impedance at high frequency improve regulation and transient response.
• Industrial control electronics — Supports general-purpose energy storage and decoupling in control modules operating across −40°C to +105°C.
• Telecommunications and networking equipment — Delivers high-frequency ripple handling and long endurance for systems requiring continuous operation at elevated temperatures.

Unique Advantages

• High ripple-current capability: Specified 995 mA (120 Hz) and 1.99 A (10 kHz) ratings let designers handle both low- and high-frequency ripple stress without overspecifying larger components.
• Compact footprint: φ12.5 × 20 mm can and 5.0 mm lead spacing deliver a small form factor for space-constrained boards while retaining high capacitance.
• Proven endurance at elevated temperature: 12,000-hour life at 105°C gives predictable longevity for demanding thermal environments.
• Measurable low-loss performance: 180 mΩ impedance and tan δ of 0.09 (20°C, 120 Hz) reduce dissipation and support stable operation at higher frequencies.
• Production-ready supply options: Available in bulk (no terminal forming) or bag packing and listed as mass production, easing procurement for volume designs.
• Regulatory compliance: RoHS compliant for global electronics manufacturing requirements.

Why Choose UHW1J391MHD6?

The UHW1J391MHD6 is positioned for designs that demand a balance of compact size, high ripple-current capability and long life at elevated temperatures. Its combination of 390 µF capacitance, 63 V rating, low impedance and validated 12,000-hour endurance at 105°C makes it a pragmatic choice for engineers specifying reliable bulk and decoupling capacitors in power-sensitive circuits.

Ideal for product teams and procurement sourcing components for high-volume and long-lifecycle applications, the UHW1J391MHD6 offers verifiable electrical performance and packaging options that simplify board-level integration and manufacturing.

Request a quote or contact sales to discuss pricing, availability and lead-time for UHW1J391MHD6 and to obtain any additional technical information you may require.