UHD1V681MHD

The UHD1V681MHD is a radial-lead aluminum electrolytic capacitor in Nichicon’s UHD series, designed for general-purpose power applications where high ripple capability and low impedance at higher frequencies are required. It combines a 680 µF capacitance with a 35 V rating in a compact φ12.5 × 20 mm can for space-conscious designs.

Engineered for sustained operation across a wide temperature range (−40 °C to +105 °C) and a 5000‑hour endurance at 105 °C, the UHD1V681MHD targets applications needing reliable smoothing and energy storage with elevated ripple-current performance.

Key Features

• Capacitance & Voltage — 680 µF nominal capacitance rated at 35 V with ±20% tolerance (120 Hz, 20 °C).
• Low Loss (tan δ) — Tangent of loss angle 0.12 (measured at 20 °C, 120 Hz), supporting lower dissipation in AC ripple conditions.
• High Ripple Current — Low-frequency ripple current of 1.77 A at 120 Hz and high-frequency ripple current of 2.36 A at 100 kHz, enabling effective handling of AC content across a wide frequency range.
• Leakage Current — Leakage current specified at 238 µA, suitable for many general-purpose power applications.
• Durability & Temperature Range — Rated for −40 °C to +105 °C with a specified life of 5000 hours at 105 °C under rated ripple and DC bias conditions.
• Compact Radial Package — φ12.5 × 20 mm can with 5.0 mm lead spacing (±0.5 mm) and radial lead mounting for through-hole assemblies; available in bulk or bag packing (no terminal forming).
• RoHS Compliant — Meets RoHS environmental requirements.

Typical Applications

• General-purpose power circuits — Suitable where a polarized aluminum electrolytic is required for energy storage and smoothing in board- or chassis-mounted designs.
• Power filtering — Used to reduce ripple and stabilize DC rails in assemblies operating up to 35 V.
• High-ripple environments — Applicable where elevated ripple currents are present, leveraging the UHD series’ lower impedance at higher frequency ranges.

Unique Advantages

• High ripple-current capability: Specified ripple currents at both low (1.77 A at 120 Hz) and high (2.36 A at 100 kHz) frequencies help manage thermal stress and improve reliability in ripple-heavy circuits.
• Low dissipation: A tan δ of 0.12 (20 °C, 120 Hz) reduces AC losses and heating under ripple conditions.
• Compact, through-hole form factor: The φ12.5 × 20 mm can and 5.0 mm lead spacing provide a space-efficient radial solution for through-hole assembly without compromising capacitance.
• Long endurance at elevated temperature: 5000 hours rated life at 105 °C under rated ripple ensures sustained performance in thermally demanding deployments.
• Regulatory compliance: RoHS conformity supports deployment in regions and designs requiring restricted-substance compliance.

Why Choose UHD1V681MHD?

UHD1V681MHD delivers a balanced combination of capacitance, voltage rating, and ripple-handling capability in a compact radial-lead package. Its low impedance characteristics at higher frequencies and defined endurance at 105 °C make it well suited to designers seeking reliable smoothing and energy-storage components for general-purpose power circuitry.

This capacitor is appropriate for engineers and procurement teams specifying polarized aluminum electrolytics for through-hole assemblies that require defined electrical performance, environmental compliance, and clear lifetime expectations.

Request a quote or contact sales to discuss availability, lead times, or to obtain volume pricing for UHD1V681MHD.