UHW1E821MPD6

The UHW1E821MPD6 is a miniature, high-reliability radial lead aluminum electrolytic capacitor from the Nichicon UHW series. It delivers 820 µF capacitance at a 25 V rating in a compact φ10 × 16 mm can, suited for general-purpose power applications that require high ripple handling and extended endurance.

Designed for environments from −40°C to 105°C and rated for 10,000 hours at 105°C, this polarized capacitor targets power supply filtering, bulk energy storage and high-frequency decoupling where low impedance and high ripple current are important.

Key Features

• Capacitance & Voltage – 820 µF nominal capacitance with a rated voltage of 25 V and tolerance of −20% to +20%.
• High ripple current capability – Low-frequency ripple current of 1.2 A (120 Hz) and high-frequency ripple current of 2.0 A (10 kHz) for demanding power circuits.
• Low impedance – Typical impedance of 90 mΩ to support low-voltage-drop smoothing and improved high-frequency performance.
• Long endurance – Life rating of 10,000 hours at 105°C to support long-term reliability in elevated-temperature conditions.
• Temperature range – Operating from −40°C to 105°C to cover a wide variety of industrial and general-purpose environments.
• Electrical loss – Dissipation factor (tan δ) of 0.13 measured at 20°C, 120 Hz (25 V rating).
• Leakage current – Specified leakage current of 205 µA after standard test conditions.
• Radial lead package – φ10 × 16 mm aluminum can with 5.0 mm lead spacing (±0.5 mm), available in bulk (no terminal forming) or bag packing; polarized mounting type.
• Regulatory – RoHS compliant.

Typical Applications

• Power supply filtering – Bulk smoothing and ripple suppression for linear and switching power supplies, leveraging 820 µF capacitance and low impedance.
• Switching regulator output – Output decoupling for DC/DC converters where high-frequency ripple current capability (2.0 A at 10 kHz) improves regulation.
• Industrial and general-purpose electronics – Energy storage and decoupling in equipment that must tolerate wide temperature swings and long operating lifetimes (−40°C to 105°C, 10,000 h endurance).

Unique Advantages

• High ripple handling: 1.2 A at 120 Hz and 2.0 A at 10 kHz provide margin for designs with significant AC ripple on DC rails.
• Compact footprint: φ10 × 16 mm case and 5 mm lead spacing deliver substantial capacitance in a small radial-lead package for dense PCB layouts.
• Low impedance at frequency: 90 mΩ impedance and documented lower high-frequency impedance characteristics aid in voltage stability and transient response.
• Extended high-temperature life: Rated 10,000 hours at 105°C for reliable performance in elevated-temperature installations.
• Defined electrical characteristics: Measured tan δ (0.13 at 25 V, 120 Hz) and specified leakage current (205 µA) allow predictable behavior in design verification and BOM selection.
• Regulatory compliance: RoHS compliance supports environmentally restricted designs.

Why Choose UHW1E821MPD6?

UHW1E821MPD6 combines a high nominal capacitance (820 µF) with a compact radial can, low impedance, and strong ripple-current capability, making it appropriate for engineers designing power rails and decoupling networks that require both energy storage and high-frequency performance. Its 25 V rating, defined electrical parameters (tan δ, leakage), and 10,000-hour life at 105°C provide a clear, verifiable specification set for long-term designs.

This Nichicon UHW-series component is well suited for general-purpose and industrial applications where compact size, robust ripple handling, and predictable aging under elevated temperatures are required. Its RoHS compliance and standard radial-lead packaging simplify procurement and assembly choices.

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