UPA1V681MPD

The UPA1V681MPD from Nichicon is a miniature, high‑reliability aluminum electrolytic capacitor in a radial‑lead can (UPA series). It is a polarized capacitor rated 680 µF at 35 V, designed for applications that require low impedance, high ripple current handling and compact packaging.

Targeted for switching power supplies and general‑purpose electronic circuits, the UPA1V681MPD delivers a combination of low ESR, elevated ripple capability and extended endurance at elevated temperature for demanding power applications.

Key Features

• Capacitance & Voltage — 680 µF nominal capacitance with a rated voltage of 35 V and tolerance of ±20% at 20°C, 120 Hz.
• Low Loss / Low Impedance — Tangent of loss angle (tan δ) 0.12 (120 Hz, 20°C) and specified impedance of 66 mΩ for improved filtering and transient response.
• High Ripple Current — Low‑frequency ripple current 1.26 A (120 Hz) and high‑frequency ripple current 1.68 A (10 kHz), supporting heavy AC stress in power stages.
• Thermal & Endurance — Rated for operation from −55°C to +105°C with endurance of 4000 hours at 105°C under rated conditions.
• Compact Radial Can — Miniature φ10 × 25 mm can with radial lead mounting and 5 mm lead spacing (±0.5 mm) for space‑constrained board designs.
• Leakage Current — Specified leakage current of 714 µA after applied rated voltage, supporting predictable bias behavior in DC circuits.
• Packaging Options — Available in bulk (no terminal forming) or bag packing to suit assembly and inventory preferences.
• RoHS Compliant — Conforms to RoHS requirements.

Typical Applications

• Switching Power Supplies — Supports output filtering and bulk smoothing where low impedance and high ripple current capacity are required.
• General‑Purpose Power Circuits — Suitable for decoupling and energy storage in a broad range of electronic equipment requiring a polarized electrolytic capacitor.
• Space‑Constrained Designs — Miniature φ10 × 25 mm can and radial lead format make it appropriate for compact modules and boards where PCB area is limited.

Unique Advantages

• Low Impedance, Measurable Benefit — 66 mΩ impedance and low tan δ (0.12 at 120 Hz) translate to better ripple rejection and lower heat generation under AC stress.
• High Ripple Endurance — Rated ripple currents of 1.26 A (120 Hz) and 1.68 A (10 kHz) allow the capacitor to handle both low‑ and high‑frequency AC components common in switching supplies.
• Compact Footprint — φ10 × 25 mm size provides significant capacitance in a small radial can package for dense PCB layouts.
• Wide Temperature Range with Extended Life — −55°C to +105°C operating range and 4000 hours endurance at 105°C support reliable performance in elevated temperature environments.
• predictable leakage behavior — Specified leakage current of 714 µA for consistent bias performance in power and timing circuits.
• Supply Chain Flexibility — Offered in bulk and bag packing to match assembly and inventory handling workflows.

Why Choose UPA1V681MPD?

UPA1V681MPD is positioned for engineers who need a compact, polarized aluminum electrolytic with low impedance and strong ripple performance for switching power supplies and general‑purpose power circuits. Its combination of 680 µF at 35 V, measurable low tan δ, and rated ripple currents addresses the needs of designs that balance size, thermal stress and electrical performance.

Manufactured by Nichicon as part of the UPA series, this part offers predictable leakage, RoHS compliance and extended endurance at elevated temperature, making it suitable for projects that require reliable, long‑term power smoothing in compact, radial‑lead form factors.

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