UPM1K681MHD

The UPM1K681MHD is an aluminum electrolytic capacitor from Nichicon’s UPM series, supplied in a radial-lead can. It provides 680 µF capacitance at an 80 V rating and is tuned for high-reliability power applications.

Designed for demanding thermal and electrical environments, the part combines low impedance characteristics with long endurance (5,000 hours at 105°C) and AEC‑Q200 qualification, making it suitable for automotive and other robust power-system uses where sustained ripple handling and temperature tolerance are required.

Key Features

• Capacitance & Voltage — 680 µF nominal capacitance at a rated voltage of 80 V, with ±20% tolerance (120 Hz, 20°C).
• Low Impedance — Rated impedance of 55 mΩ, supporting stable power delivery and reduced voltage ripple in high-current circuits.
• High Ripple Current Capacity — Low-frequency ripple current 1.244 A (120 Hz) and high-frequency ripple current 1.83 A (1 kHz), enabling effective filtering and decoupling in power stages.
• Long Endurance — Life/endurance specified at 5,000 hours at 105°C under rated conditions, supporting long-term thermal reliability.
• Thermal Range — Operating temperature range from −55°C to +105°C for broad environmental tolerance.
• Dissipation Factor — tan δ = 0.08 measured at 20°C, 120 Hz, indicating controlled dielectric loss at the rated voltage.
• Leakage Current — Specified leakage current of 1,632 µA, measured after rated voltage application.
• Form Factor & Mounting — Radial-lead can, size φ16 × 40 mm, lead spacing 7.5 mm (±0.5 mm), polarized for straightforward through-hole placement.
• Packaging & Availability — Available in bulk (no terminal forming) and bag packing; product is in mass production.
• Compliance & Qualification — AEC‑Q200 qualified and RoHS compliant, aligning with automotive-focused reliability and environmental requirements.

Typical Applications

• Automotive power electronics — Bulk and decoupling capacitance in vehicle power systems where the 80 V rating, high ripple capability, and AEC‑Q200 qualification are required.
• DC–DC converters — Bulk energy storage and ripple suppression for intermediate and input/output stages benefiting from low impedance and high ripple current ratings.
• Motor drives and inverters — Support for pulse and ripple currents in power conversion modules operating across a wide temperature range.

Unique Advantages

• High-voltage bulk capacitance: 80 V, 680 µF combination delivers significant stored energy in a compact radial can for high-voltage rails.
• Low ESR/impedance: 55 mΩ impedance helps minimize voltage ripple and thermal losses in power paths.
• High ripple handling: Specified ripple currents at both 120 Hz and 1 kHz support a range of switching and line-frequency applications.
• Long-term thermal reliability: 5,000-hour endurance at 105°C reduces the need for frequent replacement in high-temperature installations.
• Automotive-grade qualification: AEC‑Q200 qualification provides traceable reliability expectations for vehicle electronics programs.
• Production-ready supply: Mass-production status plus bulk and bag packing options ease integration into high-volume manufacturing.

Why Choose UPM1K681MHD?

UPM1K681MHD occupies a practical position for designers needing a high-voltage aluminum electrolytic with strong ripple performance, low impedance, and extended thermal endurance. Its 80 V rating and 680 µF capacity, combined with AEC‑Q200 qualification and RoHS compliance, make it appropriate for demanding automotive and power-conversion designs that require dependable bulk capacitance.

Engineers specifying this part benefit from clear, verifiable electrical parameters—impedance, ripple current, leakage, and tan δ—alongside production-ready packaging and long-life specification, supporting robust product development and predictable lifecycle planning.

Request a quote or submit an inquiry for pricing and lead-time information to evaluate UPM1K681MHD for your next power-design project.