UPM1H821MHD6

The UPM1H821MHD6 is an aluminum electrolytic capacitor from Nichicon’s UPM series engineered for low impedance and high reliability. It is a radial-lead, polarized can-type capacitor offering 820 µF capacitance at a 50 V rating, designed for demanding temperature and ripple environments.

Targeted at automotive electronics and other high-reliability systems, this part delivers a compact high-capacitance solution with rated operation from -55 °C to +105 °C and a rated lifetime of 5000 hours at 105 °C.

Key Features

• Electrical Performance — 820 µF capacitance at 50 V with ±20% tolerance (measured at 120 Hz, 20 °C); low impedance specified at 36 mΩ for effective high-current decoupling and smoothing.
• Ripple Handling — Rated ripple current of 1.109 A at 120 Hz and 1.54 A at 200 kHz to support continuous AC components on DC rails.
• High-Temperature Endurance — Rated for operation from -55 °C to +105 °C with a load-life specification of 5000 hours at 105 °C.
• Reliability Qualification — AEC-Q200 rated for applications requiring automotive-grade reliability; RoHS compliant.
• Packaging & Mounting — Radial lead, can-style package with 7.5 mm lead spacing and compact dimensions (length 2.0 cm × diameter 1.8 cm) for through-hole assembly.
• Leakage & Dielectric Loss — Series-level leakage specification: after 1 minute at rated voltage and 20 °C, leakage current ≤ 0.03CV (µA); tan δ for 50 V devices specified at 0.10 (120 Hz, 20 °C).
• Identification — Printed marking in white on a dark brown sleeve for clear part identification.

Typical Applications

• Automotive power rails — Bulk smoothing and decoupling on 50 V systems where high temperature endurance and AEC-Q200 qualification are required.
• DC–DC converter output filtering — Low impedance and specified ripple current support stable output filtering under continuous load.
• ECU and control modules — Fits through-hole assemblies needing compact, high-capacitance energy storage with extended life at elevated temperatures.

Unique Advantages

• High capacitance in a compact radial package: 820 µF in a 2.0 cm × 1.8 cm can provides significant bulk capacitance for space-constrained boards.
• Low effective series impedance: 36 mΩ impedance reduces voltage ripple and improves transient response on power rails.
• Designed for elevated temperatures: Rated from -55 °C to +105 °C with a 5000-hour life at 105 °C for long-term stability in hot environments.
• Automotive-grade qualification: AEC-Q200 rating and RoHS compliance support use in regulated automotive electronics designs.
• Measurable ripple capability: Explicit ripple current ratings at both 120 Hz and 200 kHz make selection straightforward for low- and high-frequency ripple environments.

Why Choose UPM1H821MHD6?

UPM1H821MHD6 combines high capacitance, low impedance, and proven high-temperature endurance in a compact radial-lead can, making it well suited for automotive and other high-reliability power electronics. Its AEC-Q200 qualification and clearly specified ripple and leakage characteristics simplify component selection for designers who must balance performance, lifetime, and space.

This capacitor is a practical choice for engineers specifying bulk energy storage and smoothing in through-hole assemblies that require documented endurance at elevated temperatures and tangible ripple-handling performance.

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