UHE1A681MPD

The UHE1A681MPD is a miniature, high-reliability aluminum electrolytic capacitor in Nichicon's UHE series. It is a radial‑lead, polarized device offering 680 µF capacitance at a 10 V rating, designed for general-purpose power applications where low impedance and long life are required.

With a compact φ8 × 15 mm can, a −40 °C to 105 °C operating range, and 6000 hours endurance at 105 °C, the UHE1A681MPD targets designs that require high ripple capability and stable performance over extended thermal stress.

Key Features

• Electrical Capacity and Voltage: 680 µF nominal capacitance with a rated voltage of 10 V and capacitance tolerance of ±20% (−20% to +20%).
• Low Impedance Performance: Specified impedance of 350 mΩ, supporting lower ripple voltage in power filtering and decoupling applications.
• Ripple Current Handling: Low-frequency ripple current of 630 mA (120 Hz) and high-frequency ripple current of 840 mA (10 kHz), enabling effective smoothing across a range of frequencies.
• Leakage and Dissipation: Leakage current rated at 68 µA and tangent of loss angle (tan δ) of 0.19 (measured at 20 °C, 120 Hz), providing predictable loss and leakage behavior for power designs.
• High-Temperature Endurance: Life rating of 6000 hours at 105 °C (for φD = 8, rated voltage 6.3–10 V), giving extended reliability under elevated operating temperature.
• Compact Radial Package: φ8 × 15 mm can with 3.5 mm lead spacing (±0.5 mm) and radial lead mounting for through‑hole boards; available in bulk (no terminal forming) or bag packing.
• Wide Operating Temperature: Rated for −40 °C to +105 °C to accommodate a broad range of environmental conditions.
• RoHS Compliant & Clear Marking: RoHS status compliant; capacitors are printed in white on a black sleeve for easy identification.

Typical Applications

• Power Supply Filtering: Bulk smoothing and output filtering in low-voltage DC power supplies where 680 µF at 10 V is required.
• Embedded and Consumer Electronics: Decoupling and energy storage in compact boards that need a small form factor (φ8 × 15 mm) with reliable ripple performance.
• Industrial Control Electronics: Local energy buffering and noise suppression in control modules operating across −40 °C to 105 °C.

Unique Advantages

• Compact, high-capacitance solution: 680 µF in a φ8 × 15 mm can conserves board space while providing significant bulk capacitance.
• High ripple capability: Rated ripple currents of 630 mA (120 Hz) and 840 mA (10 kHz) reduce voltage fluctuation under AC ripple stress.
• Low impedance: 350 mΩ impedance supports lower ESR paths for improved transient response and reduced heat generation.
• Long high-temperature life: 6000 hours endurance at 105 °C provides predictable long-term performance in thermally demanding applications.
• Through-hole radial mounting: 3.5 mm lead spacing and standard radial leads simplify PCB placement and manual assembly workflows.
• Regulated leakage and loss: Specified leakage current (68 µA) and tan δ (0.19) allow designers to budget leakage and dissipation precisely.

Why Choose UHE1A681MPD?

The UHE1A681MPD combines a compact radial package with high capacitance, low impedance, and specified high-temperature endurance to address general‑purpose power filtering and decoupling needs. Its defined ripple current ratings, leakage, and dissipation factor make it straightforward to integrate into power rails where predictable electrical behavior is required.

This part is well suited for engineers designing compact, robust systems—where board space is limited but long-term stability at elevated temperatures and reliable ripple handling are essential. RoHS compliance and clear sleeve marking further support production and regulatory requirements.

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