UHW1A822MHD

The UHW1A822MHD is a miniature aluminum electrolytic capacitor in Nichicon’s UHW series optimized for high ripple current and reliable operation. It is a radial-lead, can-style polarized capacitor designed for general-purpose applications that require lower impedance at higher frequencies and compact packaging.

Key value propositions include high ripple handling (up to 4 A at 10 kHz), a low impedance of 33 mΩ, and a rated voltage of 10 V, combined with a long endurance specification of 10,000 hours at 105 °C.

Key Features

• Capacitance & Voltage — 8.2 mF capacitance with a 10 V rated voltage and ±20% tolerance for bulk energy storage in low-voltage designs.
• Low Impedance, High-Frequency Performance — Specified impedance of 33 mΩ and designed for lower impedance at high frequency ranges to improve ripple attenuation and decoupling effectiveness.
• High Ripple Current — Rated ripple current of 3.4 A at 120 Hz and 4 A at 10 kHz to support high-current AC components and switching power stages.
• Thermal Endurance — Operates from –40 °C to 105 °C with a lifetime rating of 10,000 hours at 105 °C, supporting sustained elevated-temperature operation.
• Package & Mounting — Radial lead, can-style package with 7.5 mm lead spacing and compact dimensions (L: 3.05 × D: 1.6 cm) for space-constrained board layouts.
• Polarized Electrolytic — Polarized construction suitable for DC smoothing and bulk filtering in polarized circuits.
• RoHS Compliance — Compliant with RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• General Purpose Power Filtering — Use where compact, high-capacitance smoothing and decoupling are needed in low-voltage power rails.
• Switching Power Supplies — Suitable for ripple and noise reduction in supplies that require elevated ripple current handling at both low and high frequencies.
• Embedded and Industrial Electronics — Fits space-limited boards requiring durable electrolytic energy storage with extended lifetime at elevated temperatures.

Unique Advantages

• High Ripple Current Capability: 3.4 A at 120 Hz and 4 A at 10 kHz reduce heating and improve reliability in high-stress AC environments.
• Low High-Frequency Impedance: 33 mΩ impedance and design emphasis on reduced high-frequency impedance help improve decoupling efficiency near switching nodes.
• Compact Footprint: Small can-style radial package (L: 3.05 × D: 1.6 cm) with 7.5 mm lead spacing aids integration into compact power and control boards.
• Extended Thermal Endurance: Rated for –40 °C to 105 °C with 10,000 hours life at 105 °C for predictable long-term performance in elevated-temperature environments.
• Polarized Design for DC Applications: Polar construction provides reliable bulk storage and filtering in DC circuits where polarity is maintained.
• Regulatory Compliance: RoHS-compliant construction supports environmental and regulatory requirements.

Why Choose UHW1A822MHD?

The UHW1A822MHD positions itself as a compact, high-ripple-capacity solution for designers who need robust bulk storage and effective high-frequency decoupling in low-voltage systems. With a low impedance of 33 mΩ, high ripple ratings at both 120 Hz and 10 kHz, and a 10,000-hour endurance at 105 °C, it offers a balance of performance and reliability for general-purpose power electronics.

This part is well suited to engineers and procurement teams working on space-constrained power subsystems, embedded controllers, and industrial electronics that require long life and RoHS compliance without sacrificing ripple-handling capability.

Request a quote or contact our sales team to discuss availability, pricing, and integration details for the UHW1A822MHD.