UHW1K821MHD6

The UHW1K821MHD6 is a miniature, high-reliability aluminum electrolytic capacitor in Nichicon’s UHW series. It is a radial lead, polarized capacitor specified at 820 µF and 80 V with low impedance and high ripple-current capability for general-purpose electronic designs.

This part targets applications that require compact energy storage with sustained performance across a wide temperature range (−40 °C to +105 °C) and long-term endurance (12,000 hours at 105 °C under rated conditions).

Key Features

• Electrical performance — 820 µF capacitance at an 80 V rating with an impedance of 110 mΩ and a tangent of loss angle (tan δ) of 0.09 (measured at 20 °C, 120 Hz).
• High ripple-current capability — Low-frequency ripple current of 1.5 A (120 Hz) and high-frequency ripple current of 2.5 A (10 kHz) to support designs with elevated AC loading.
• Leakage & dissipation — Specified leakage current of 656 µA and DF measurement condition provided for predictable dissipation and bias behavior.
• Reliability & endurance — Rated for 12,000 hours endurance at 105 °C when operated under the specified conditions.
• Package & mounting — Radial lead can (φ18 × 25L) with 7.5 mm lead spacing (±0.5 mm) for through-hole assemblies; available in bulk (no terminal forming) or bag packing.
• Temperature range — Operational from −40 °C to +105 °C to accommodate wide ambient conditions.
• Environmental compliance — RoHS compliant.

Typical Applications

• General-purpose electronic circuits — Suited for designs requiring an 820 µF, 80 V polarized capacitor with high ripple-current handling and long endurance.
• Power supply subsystems — Appropriate where compact radial lead bulk capacitance and defined ripple-current ratings (1.5 A @120 Hz; 2.5 A @10 kHz) are needed to meet design specifications.
• High-temperature environments — Applicable in assemblies that require continuous operation up to 105 °C with a guaranteed 12,000 h lifetime under rated conditions.

Unique Advantages

• High ripple-current tolerance: Rated for 1.5 A at 120 Hz and 2.5 A at 10 kHz, enabling predictable performance under AC load.
• Low impedance: 110 mΩ impedance helps reduce voltage drop and heating in power circuits.
• Long endurance at elevated temperature: 12,000 hours life at 105 °C for sustained reliability in demanding conditions.
• Compact radial package: φ18 × 25 mm can with 7.5 mm lead spacing provides a space-efficient through-hole option for legacy and industrial PCBs.
• Measured dissipation characteristics: tan δ specified at 0.09 (20 °C, 120 Hz) for predictable AC loss behavior.
• RoHS compliance: Meets RoHS directive requirements for restricted substances.

Why Choose UHW1K821MHD6?

The UHW1K821MHD6 combines a high capacitance (820 µF) and an 80 V rating with low impedance and strong ripple-current capacity in a compact radial lead package. Its 12,000-hour endurance at 105 °C and −40 °C to +105 °C operating range position it for designs that require reliable bulk capacitance and predictable performance under elevated temperature and AC stress.

This part is well suited to engineers and procurement teams specifying general-purpose power and electronic subsystems that demand measurable electrical characteristics, long-term stability, and RoHS compliance from a miniature electrolytic capacitor solution.

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