UHE2A391MHD

The UHE2A391MHD is a miniature, high-reliability aluminum electrolytic capacitor from Nichicon’s UHE series, provided in a radial-lead can package. It delivers 390 µF at 100 V with low impedance and long-term endurance, making it suited for general-purpose power filtering and smoothing in through-hole assemblies.

Designed for demanding operating conditions, this part supports an ambient range of −40°C to 105°C and a rated endurance of 10,000 hours at 105°C, offering predictable performance in industrial and power-electronics designs.

Key Features

• Capacitance & Voltage — 390 µF nominal capacitance with a 100 V rated voltage; capacitance tolerance is −20% to +20%.
• Low Impedance — Specified impedance of 200 mΩ and a tangent of loss angle (tan δ) of 0.08 at 120 Hz, 20°C, supporting efficient ripple handling and decoupling.
• High Ripple Capability — Low-frequency ripple current of 1.238 A (120 Hz) and high-frequency ripple current of 1.65 A (10 kHz), enabling effective AC ripple suppression across a broad frequency range.
• Leakage Current — Product leakage current specified at 390 µA; consistent with the series leakage limit of not more than 0.01CV after 2 minutes at 20°C.
• Long Endurance — Rated for 10,000 hours at 105°C under DC bias plus rated ripple current, reflecting the UHE series’ high reliability focus.
• Robust Temperature Range — Operating from −40°C to 105°C for use across varied environmental conditions.
• Radial Through-Hole Package — φ16 × 30.5 mm can with 7.5 mm lead spacing (±0.5 mm), radial-lead mounting for PCB through-hole designs; available in bulk or bag packing.
• Regulatory Compliance — RoHS compliant.

Typical Applications

• Power supply bulk filtering — Provides energy storage and smoothing in DC power supplies where 100 V rating and 390 µF capacitance reduce voltage ripple and improve regulation.
• DC link smoothing — Suitable for DC link and intermediate bus circuits in industrial power conversion where long endurance and high ripple capability are required.
• General-purpose power electronics — Ideal for through-hole assemblies in instrumentation, control systems, and other equipment that benefit from a compact, high-voltage electrolytic capacitor.

Unique Advantages

• High voltage headroom: 100 V rating supports higher-voltage rails and increases design flexibility for power systems.
• Proven long-life performance: 10,000-hour endurance at 105°C provides predictable aging characteristics for maintenance planning and lifecycle management.
• Low impedance and measurable loss: 200 mΩ impedance and tan δ of 0.08 at 120 Hz minimize energy loss and support stable filtering performance.
• Broad ripple handling: Specified ripple currents at both low and high frequencies enable use across a wide range of switching and line-frequency applications.
• Compact radial form factor: φ16 × 30.5 mm can and 7.5 mm lead spacing provide a small footprint for through-hole designs while preserving capacitance and voltage capability.
• Supply readiness: Available in bulk and bag packing and listed as mass production, facilitating procurement for production volumes.

Why Choose UHE2A391MHD?

UHE2A391MHD combines a high-voltage 100 V rating with a substantial 390 µF capacitance in a compact radial-lead package, offering a balance of energy storage, low impedance, and long-term reliability. Its endurance rating of 10,000 hours at 105°C and specified ripple current figures make it a practical choice for industrial and general-purpose power designs that require stable decoupling and smoothing over extended service life.

This capacitor is suited to engineers and procurement teams specifying through-hole electrolytic capacitors for power supplies, DC link circuits, and other power-electronics applications where predictable electrical characteristics, RoHS compliance, and production availability are important.

Request a quote or submit an inquiry to receive pricing and availability information for UHE2A391MHD. Our team can provide lead-time and packaging options to support your production planning.