UPM1H821MHD

The UPM1H821MHD is a miniature, high-reliability aluminum electrolytic capacitor in Nichicon’s UPM series. It is a radial-lead, polarized can-type capacitor specified at 820 µF and 50 V, designed for demanding power applications that require low impedance and extended endurance.

With a wide operating temperature range and AEC-Q200 qualification, this part targets automotive and industrial power systems where sustained ripple handling, long life at elevated temperature, and compact packaging are required.

Key Features

• Electrical Performance — 820 µF capacitance at 50 V rated voltage with an impedance of 33 mΩ, providing substantial energy storage and low-loss behavior for power-rail stabilization.
• Loss Characteristics — tanδ = 0.10 measured at 20°C, 120 Hz, supporting predictable AC performance in filtering and decoupling roles.
• Ripple Current Capability — Low-frequency ripple current 1.296 A (120 Hz) and high-frequency ripple current 1.8 A (200 kHz), enabling effective smoothing under continuous ripple loading.
• Leakage — Specified leakage current of 1,230 µA provides a quantifiable baseline for bias current and power-loss budgeting.
• Reliability & Endurance — Rated for 5,000 hours at 105°C, delivering extended operational life under elevated-temperature bias conditions.
• Temperature Range — Operates from −55°C to +105°C to accommodate a broad range of environmental conditions.
• Mechanical & Packaging — Radial lead configuration in a φ12.5 × 40 mm can (lead spacing 5.0 mm ±0.5 mm) supplied in bulk or bag packing; mass-production status for production-scale availability.
• Automotive-Grade Qualification — AEC‑Q200 rating for designs that require automotive-grade component qualification.
• Regulatory Compliance — RoHS compliant.

Typical Applications

• Automotive power systems — Bulk energy storage and smoothing on 50 V rails where AEC‑Q200 qualification and high ripple capability are required.
• Power supply filtering — Decoupling and output filtering in DC–DC converters and regulators that demand low impedance and measurable ripple handling.
• Industrial control electronics — Energy buffering and transient absorption in control modules operating across −55°C to +105°C.

Unique Advantages

• Long high-temperature life: 5,000 h endurance at 105°C supports reliable operation in elevated-temperature environments.
• High ripple handling: Combined low- and high-frequency ripple ratings (1.296 A at 120 Hz, 1.8 A at 200 kHz) enable robust smoothing across a wide spectral range.
• Low impedance: 33 mΩ impedance reduces voltage ripple on power rails and improves dynamic response of power systems.
• Automotive-grade qualification: AEC‑Q200 rating aligns the part with automotive development and qualification practices.
• Compact radial can: φ12.5 × 40 mm footprint with 5.0 mm lead spacing provides a space-efficient solution for through-hole power designs.
• Regulatory alignment: RoHS compliance supports restricted-substance requirements in modern product assemblies.

Why Choose UPM1H821MHD?

UPM1H821MHD positions itself as a durable, low-impedance aluminum electrolytic solution for designers needing measurable ripple performance and long-term endurance at elevated temperatures. Its combination of 820 µF capacitance, 50 V rating, AEC‑Q200 qualification, and a compact radial can makes it suitable for production automotive and industrial power designs that require predictable performance under continuous bias.

Choose this part when you need a verified endurance profile, clear electrical parameters for power budgeting, and a compact through-hole form factor that is readily available in mass production and standard packaging options.

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