UHW1E821MPD

The UHW1E821MPD from Nichicon is a radial-lead aluminum electrolytic capacitor in the UHW series, providing 820 µF capacitance at a 25 V rating in a compact φ10 × 20 mm can. It is designed for general-purpose electronic circuits where compact size, high ripple handling and long endurance are required.

Key attributes include low impedance (60 mΩ), high ripple current capability (1.5 A at 120 Hz, 2.5 A at 10 kHz) and a wide operating temperature range of −40 °C to +105 °C, with a rated life of 10,000 hours at 105 °C.

Key Features

• Capacitance and Rating — 820 µF nominal capacitance at 25 V with ±20% tolerance, providing substantial bulk energy storage for smoothing and decoupling tasks.
• High Ripple Current — Low-frequency ripple current 1.5 A (120 Hz) and high-frequency ripple current 2.5 A (10 kHz) to support demanding power-conditioning applications.
• Low Impedance — Specified impedance of 60 mΩ for improved performance at higher ripple and frequency ranges.
• Loss Angle (tan δ) — tan δ 0.13 measured at 20 °C, 120 Hz, supporting predictable AC performance in filter circuits.
• Long Endurance — Rated for 10,000 hours at 105 °C, enabling sustained operation in elevated-temperature environments.
• Compact Radial Can — φ10 × 20 mm package with 5 mm lead spacing (±0.5 mm) and radial lead mounting for through-hole boards; available in bulk or bag packing.
• Low Leakage — Specified leakage current of 205 µA, supporting stable long-term performance after voltage application.
• Environmental Compliance — RoHS compliant.

Typical Applications

• General-purpose power filtering — Provides bulk capacitance and high ripple handling for smoothing outputs in power supplies and regulators.
• Decoupling and energy storage — Compact 820 µF value and low impedance make it suitable for decoupling at board level where space is limited.
• Frequency-dependent filtering — Maintains performance across low and high frequency ripple conditions (specified at 120 Hz and 10 kHz).
• Industrial and consumer electronics — Long endurance (10,000 h at 105 °C) and wide temperature range (−40 °C to +105 °C) support extended operation in varied environments.

Unique Advantages

• High ripple capacity in a small package: 1.5 A (120 Hz) and 2.5 A (10 kHz) ripple ratings combined with a φ10 × 20 mm can reduce board space without sacrificing ripple performance.
• Predictable AC behavior: Specified tan δ (0.13 at 20 °C, 120 Hz) and low impedance (60 mΩ) provide verifiable performance for filter design and simulation.
• Long-term thermal reliability: 10,000-hour endurance at 105 °C supports designs that must tolerate sustained elevated temperatures.
• Through-hole robustness: Radial lead format with defined 5 mm lead spacing and ±0.5 mm tolerance simplifies insertion and mechanical retention on PCBs.
• Low steady-state leakage: 205 µA leakage current specification helps maintain circuit stability after DC bias is applied.
• Regulatory compliance: RoHS compliance supports environmental and regulatory requirements for many assemblies.

Why Choose UHW1E821MPD?

The UHW1E821MPD balances compact mechanical size with high ripple capability, low impedance and long endurance—delivering verifiable electrical performance for general-purpose power conditioning and decoupling tasks. Its radial-lead can and 5 mm lead spacing make it straightforward to integrate into through-hole designs that require generous bulk capacitance without compromising thermal life.

This part is well suited for engineers specifying components where sustained high-temperature operation, defined AC characteristics, and RoHS compliance are important for deployment and lifecycle planning.

Request a quote or submit an inquiry for pricing and availability to evaluate UHW1E821MPD for your next design.