UPW1H821MHD

The UPW1H821MHD is a Nichicon UPW series aluminum electrolytic capacitor in a miniature radial‑lead can designed for high‑reliability power applications. It delivers 820 µF at a 50 V rating in a compact φ12.5 × 35.5 mm package with 5 mm lead spacing and bulk/bag packing options.

Optimized for switching power supplies and automotive power electronics, the UPW1H821MHD combines low impedance and high ripple current capability with extended life at elevated temperature to support demanding power conversion and filtering tasks.

Key Features

• Capacitance & Voltage — 820 µF nominal capacitance rated at 50 V with capacitance tolerance ±20% (measured at 120 Hz, 20°C).
• Low Impedance & Loss — Specified impedance of 68 mΩ and tan δ = 0.10 (measured at 20°C, 120 Hz), supporting lower AC voltage drop in power circuits.
• High Ripple Current Capability — Low‑frequency ripple current 1.718 A at 120 Hz and high‑frequency ripple current 2.29 A at 10 kHz, suitable for dynamic power filtering in switching supplies.
• Leakage Current — Leakage current specified at 1,230 µA.
• Temperature Range & Endurance — Operating temperature –55°C to +105°C with rated life of 7,000 hours at 105°C.
• Automotive Qualification — Rated to AEC‑Q200, supporting automotive system use (Applications: Automotive).
• Radial Lead Package — Through‑hole radial can (φ12.5 × 35.5L / 3.55 × 1.25 cm), 5 mm lead spacing (±0.5 mm), and pressure relief vent; available as bulk (no terminal forming) or bag packed.

Typical Applications

• Switching Power Supplies — Bulk and smoothing capacitor for DC outputs and input filtering in switching regulators, leveraging low impedance and high ripple ratings.
• Automotive Power Electronics — Power filtering and decoupling in automotive electronic control units and power modules where AEC‑Q200 qualification and high temperature endurance are required.
• Power Conversion Modules — Energy storage and transient suppression in DC‑DC converters and power management assemblies operating up to 105°C.

Unique Advantages

• Reliable high‑temperature operation: 7,000 hours endurance at 105°C provides predictable lifetime for sustained elevated‑temperature deployments.
• Strong ripple handling: Specified ripple currents at 120 Hz and 10 kHz support both low‑frequency and high‑frequency filtering requirements.
• Low ESR footprint: 68 mΩ impedance and low tan δ reduce losses and heat generation in power rails.
• Automotive‑ready qualification: AEC‑Q200 rating aligns the device with automotive electronic requirements and system validation flows.
• Compact, through‑hole form factor: Radial lead can and compact dimensions (φ12.5 × 35.5 mm) provide a space‑efficient solution for PCB layouts requiring robust mechanical mounting.

Why Choose UPW1H821MHD?

The UPW1H821MHD positions itself as a compact, high‑reliability electrolytic capacitor tailored for power supply and automotive use cases. Its combination of 820 µF capacitance at 50 V, low impedance, defined ripple current performance, and 7,000‑hour endurance at 105°C offers designers predictable electrical and thermal behavior in demanding environments.

This part is well suited for engineers specifying through‑hole bulk capacitance for switching converters, automotive power modules, and other high‑temperature power systems that require AEC‑Q200 qualification and long operational life.

If you would like pricing or availability information, request a quote or submit a specification inquiry to our sales team and include your required quantities and any application details to expedite the response.