UHW2A681MHD6

The UHW2A681MHD6 is a miniature, high-reliability aluminum electrolytic capacitor from Nichicon’s UHW series. It is a radial-lead, polarized device specified at 680 µF and 100 V, designed for general-purpose electronic applications that require compact bulk capacitance with high ripple-handling capability.

Key value propositions include high ripple current capability across low and high frequencies, low impedance, and a long endurance rating of 12,000 hours at 105 °C—making it suited for designs that demand reliable smoothing and energy storage in a small can package.

Key Features

• Capacitance and Voltage — 680 µF nominal capacitance with a rated voltage of 100 V and a tolerance of ±20% (–20% to +20%).
• High Ripple Current — Low-frequency ripple current of 1.716 A (120 Hz) and high-frequency ripple current of 2.86 A (10 kHz), supporting effective AC ripple handling across common power frequencies.
• Low Impedance and Loss — Rated impedance of 90 mΩ and tangent of loss angle (tan δ) of 0.08 measured at 20 °C, 120 Hz, enabling efficient filtering and reduced voltage drop under load.
• Temperature and Endurance — Wide operating temperature range from –40 °C to +105 °C and a specified life of 12,000 hours at 105 °C for long-term reliability in thermally demanding environments.
• Form Factor and Mounting — Miniature radial can package: diameter φ18 × length 30.5 mm (L: 3.05 × D: 1.8 cm) with radial lead spacing of 7.5 mm (±0.5 mm), suitable for through-hole mounting.
• Leakage and Compliance — Leakage current specified at 680 µA; RoHS compliant and available in bulk/bag packaging for production use.

Typical Applications

• General-purpose electronic equipment — Provides bulk energy storage and smoothing in general-purpose systems where a 100 V, 680 µF polarized capacitor is required.
• Power supply filtering — Reduces output ripple and stabilizes DC rails, leveraging the capacitor’s high ripple current ratings and low impedance.
• Decoupling and bulk capacitance — Serves as bulk decoupling in circuits that need compact through-hole capacitors with long endurance at elevated temperature.

Unique Advantages

• High ripple-handling capability: Specified ripple currents of 1.716 A (120 Hz) and 2.86 A (10 kHz) support robust AC filtering across typical low- and high-frequency conditions.
• Low impedance for efficient smoothing: 90 mΩ impedance and a low tan δ (0.08 at 20 °C, 120 Hz) reduce losses and help maintain voltage stability under load.
• Compact, serviceable form factor: φ18 × 30.5 mm radial can with 7.5 mm lead spacing fits space-constrained through-hole layouts while providing substantial capacitance.
• Long-term reliability at elevated temperatures: Rated for 12,000 hours at 105 °C, supporting designs that require sustained performance in warm operating environments.
• Production-ready availability: RoHS-compliant and offered in bulk/bag packing with mass-production status for predictable procurement and assembly planning.

Why Choose UHW2A681MHD6?

UHW2A681MHD6 combines high-capacitance bulk storage with low impedance and strong ripple-current performance in a compact radial-lead can, delivering a practical balance of size, performance, and endurance for general-purpose electronic designs. Its 100 V rating and 680 µF capacitance make it suitable where elevated voltage handling and substantial smoothing are required.

This part is well suited to engineers and procurement teams specifying through-hole capacitors for power-supply filtering, decoupling, and bulk energy storage in equipment that operates up to 105 °C. Backed by Nichicon’s UHW series specifications and mass-production availability, it provides a durable component choice for robust, long-life designs.

If you would like pricing, lead time, or to request a formal quote for UHW2A681MHD6, submit a quote request or inquiry for more information on availability and packaging options.