UPM1H681MHD

The UPM1H681MHD is an aluminum electrolytic capacitor from Nichicon's UPM series, offering 680 µF capacitance at a 50 V rating in a radial‑lead can package. Engineered for demanding environments, it combines low impedance and high reliability for electronics requiring robust bulk energy storage and filtering.

Designed with automotive applications in mind, this AEC‑Q200 qualified, RoHS‑compliant capacitor provides wide operating temperature range and long load‑life performance for systems that require consistent behaviour over extended service intervals.

Key Features

• Capacitance & Voltage — 680 µF rated capacitance at 50 V, with ±20% tolerance for predictable energy storage and decoupling performance.
• Low Impedance — 36 mΩ impedance supports lower loss and improved ripple handling in power circuits.
• High Ripple Current Capability — Rated ripple current of 1.074 A at 120 Hz and 1.58 A at 200 kHz to support both low and high frequency filtering requirements.
• High Temperature Endurance — Specified for operation from −55 °C to +105 °C with 5000 hours load life at 105 °C, delivering stability under prolonged thermal stress.
• Automotive Qualification — AEC‑Q200 qualified for use in automotive electronic systems where supplier qualification is required.
• Package and Mounting — Radial lead can with 5 mm lead spacing and compact dimensions (L: 3.55 × D: 1.25 cm) for through‑hole PCB implementations.
• Regulatory Compliance — RoHS compliant, aligning with environmental and regulatory requirements.

Typical Applications

• Automotive power electronics — Low impedance and rated ripple current make the UPM1H681MHD suitable for bulk smoothing and filtering in vehicle power converters and inverters.
• Control modules and ECUs — AEC‑Q200 qualification and extended high‑temperature life support reliable decoupling and energy buffering in electronic control units.
• On‑board power filtering — Compact radial can form factor and strong ripple handling are useful for on‑board DC power rails and subsystem filtering.

Unique Advantages

• Long-term thermal reliability: 5000 hours at 105 °C endurance ensures sustained performance in high‑temperature environments.
• Validated automotive readiness: AEC‑Q200 qualification provides documented supplier-level qualification for automotive system integration.
• Low-loss operation: 36 mΩ impedance reduces power dissipation and improves efficiency in power delivery and filtering circuits.
• Broad ripple capability: Distinct ripple current ratings at 120 Hz and 200 kHz support both mains‑frequency and switching‑frequency applications.
• Compact through‑hole package: Radial lead can with 5 mm lead spacing and a small footprint for reliable through‑hole mounting and mechanical robustness.
• Regulatory compliance: RoHS compliance aligns with modern environmental requirements for electronic assemblies.

Why Choose UPM1H681MHD?

UPM1H681MHD positions itself as a reliable, high‑endurance electrolytic solution for engineers designing in harsh thermal and electrical environments. Its combination of low impedance, clear ripple current specifications, and extended 105 °C load life makes it suitable for systems that demand stable bulk capacitance and filtering over long service periods.

This part is particularly well suited to designers and procurement teams requiring components with automotive qualification and environmental compliance. Choosing the UPM1H681MHD supports robustness and predictable performance in power electronics, control modules, and on‑board power filtering applications.

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