UPS2A681MHD

The UPS2A681MHD is a miniature, high‑reliability aluminum electrolytic capacitor in a radial‑lead can package, designed for power‑supply smoothing and filtering in switching power applications. It provides 680 µF capacitance at a 100 V rating with low impedance and specified ripple current capability.

Built for demanding thermal and ripple environments, the part delivers long endurance up to 3000 hours at 105°C, a wide operating temperature range from −55°C to 105°C, and RoHS compliance—making it suitable for general‑purpose power electronics requiring compact, robust energy storage.

Key Features

• Electrical Performance — 680 µF capacitance with ±20% tolerance and a 100 V rated voltage; low impedance of 64 mΩ supports stable DC link and smoothing functions.
• Low Loss — tanδ (DF) of 0.08 measured at 20°C, 120 Hz for predictable AC behavior and reduced heating in filtering applications.
• Ripple Handling — Rated ripple current of 1.001 A at 120 Hz and 1.41 A at 10 kHz to support both low‑ and high‑frequency ripple environments.
• Leakage and Endurance — Specified leakage current of 2040 µA and an endurance rating of 3000 hours at 105°C, enabling reliable long‑term operation under rated conditions.
• Package & Mounting — Radial lead, polarized can with dimensions φ16 × 35.5 mm and 7.5 mm lead spacing (±0.5 mm); available in bulk or bag packing for production assembly.
• Temperature Range & Compliance — Operates from −55°C to 105°C and is RoHS compliant.

Typical Applications

• Switching Power Supplies — Bulk and output smoothing in power converters where low impedance and high voltage handling are required.
• DC‑DC Converters — Input/output filtering and energy storage for regulated rails in compact power modules.
• Power Filtering for Industrial Equipment — Noise suppression and ripple reduction in general‑purpose power electronics.
• Power Backup and Supply Smoothing — Energy buffering and transient suppression in systems that require stable DC supply under variable load.

Unique Advantages

• High Voltage Capability — 100 V rating enables use in higher‑voltage DC bus and power‑conversion stages without series stacking.
• Compact, Low‑Impedance Design — φ16 × 35.5 mm form factor with 64 mΩ impedance balances size and performance for space‑constrained designs.
• Broad Ripple Tolerance — Specified ripple current at both 120 Hz and 10 kHz supports mixed‑frequency ripple environments common in switched supplies.
• Extended Thermal Endurance — 3000 hours at 105°C provides predictable lifetime performance for high‑temperature applications.
• Production‑Friendly Packaging — Radial lead configuration with standardized lead spacing and bulk/bag packing options simplifies PCB assembly and inventory handling.
• Regulatory Compliance — RoHS compliant for use in assemblies targeted at markets requiring hazardous‑substance controls.

Why Choose UPS2A681MHD?

UPS2A681MHD is positioned for engineers who need a compact, high‑voltage electrolytic capacitor with low impedance, reliable ripple handling, and predictable long‑term performance. Its combination of 680 µF at 100 V, low tanδ, and 3000‑hour endurance at 105°C makes it well suited to switching power supplies, DC‑DC converters, and general power‑filtering roles where space and thermal robustness matter.

Manufactured as part of Nichicon’s UPS series and offered in production quantities, this radial‑lead can provides a straightforward, verifiable component choice for designs that require repeatable electrical behavior, simplified assembly, and RoHS conformance over the product lifecycle.

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