UHW1H821MHD6

The UHW1H821MHD6 is a miniature, high-reliability aluminum electrolytic capacitor from Nichicon’s UHW series. It is a radial-lead, polarized capacitor rated at 820 µF and 50 V, designed for general-purpose electronic applications that require high ripple-current handling and low high-frequency impedance.

With a compact φ16 × 20 mm can, a wide operating temperature range of −40 °C to 105 °C and a rated endurance of 10,000 hours at 105 °C, this capacitor targets designs that demand long-term stability and robust ripple performance in a small package.

Key Features

• Capacitance & Voltage — 820 µF nominal capacitance with a rated voltage of 50 V and capacitance tolerance of −20% to +20% for predictable energy storage in bulk and smoothing applications.
• High Ripple Current — Low-frequency ripple current of 1.842 A (120 Hz) and high-frequency ripple current of 3.07 A (10 kHz) to support circuits with substantial AC ripple components.
• Low Impedance — Specified impedance of 69 mΩ and datasheet-highlighted lower impedance at high frequency to improve transient response and reduce voltage ripple under dynamic loads.
• Thermal and Long-Life Performance — Rated for −40 °C to 105 °C with endurance of 10,000 hours at 105 °C when operated under rated conditions, supporting reliable long-term operation in elevated-temperature environments.
• Leakage and Loss Characteristics — Leakage current specified at 410 µA and tangent of loss angle (tan δ) of 0.1 at 20 °C, 120 Hz (for 50 V rating), providing measurable dissipation and self-discharge behavior for design consideration.
• Compact Radial-Lead Package — φ16 × 20 mm can with 7.5 mm lead spacing (±0.5 mm) and radial-lead mounting for through-hole assembly and straightforward PCB placement; available in bulk or bag packing.
• RoHS Compliant — Manufactured in compliance with RoHS directives as indicated in product documentation.

Typical Applications

• Power supply filtering and smoothing — Provides bulk capacitance and ripple-current handling for general-purpose power supply circuits that require 820 µF at 50 V.
• Decoupling in high-ripple environments — Low impedance at higher frequencies and specified high-frequency ripple current make it suitable where dynamic load transients and ripple must be managed.
• General-purpose industrial electronics — Compact form factor with extended temperature and long endurance supports designs where space and reliability are both important.

Unique Advantages

• High ripple-current capability: Specified ripple currents of 1.842 A (120 Hz) and 3.07 A (10 kHz) reduce heating and extend service life in ripple-heavy circuits.
• Low high-frequency impedance: Measured impedance of 69 mΩ and datasheet emphasis on lower impedance at high frequency improve voltage stability under transient conditions.
• Long endurance at elevated temperature: 10,000-hour rating at 105 °C provides predictable lifetime metrics for thermal-stressed applications.
• Compact, serviceable form factor: φ16 × 20 mm radial-can with 7.5 mm lead spacing enables through-hole assembly in space-constrained designs while maintaining performance.
• Clear electrical characteristics: Specified tan δ, leakage current, and tolerance figures allow straightforward electrical margining and reliability planning.
• RoHS compliance: Meets RoHS requirements as documented, supporting regulatory adherence in product builds.

Why Choose UHW1H821MHD6?

The UHW1H821MHD6 combines a compact radial-can package with high ripple-current capability, low high-frequency impedance, and a specified 10,000-hour endurance at 105 °C—making it a practical choice for general-purpose electronic designs that require reliable bulk capacitance in a small footprint. Its clearly documented electrical parameters (capacitance, tolerance, leakage, tan δ, impedance, and ripple currents) simplify design trade-offs and reliability planning.

This part is well suited to engineers and procurement teams building power delivery, decoupling, and general-purpose circuits that demand predictable thermal and ripple performance over long operating periods. Its RoHS compliance and mass-production availability support scalable manufacturing and long-term sourcing.

If you would like pricing, lead time, or a formal quote for UHW1H821MHD6, please submit a product inquiry or request a quote through the appropriate procurement channel. Our team can provide volume pricing, packaging options, and availability information on request.