UPW1V681MHD

The UPW1V681MHD is a radial-lead aluminum electrolytic capacitor from Nichicon’s UPW series designed for compact, high-capacitance filtering in switching power supplies and automotive electronics. It delivers 680 µF at 35 V in a small can-style package with low impedance and long-term endurance for demanding power applications.

Key Features

• Capacitance & Voltage — 680 µF rated capacitance at 35 V suitable for bulk energy storage and smoothing in power rails.
• Low Impedance — Specified impedance of 76 mΩ provides reduced ripple voltage and improved transient response in switching regulators.
• High Reliability & Lifetime — Endurance rated to 7000 hours at 105°C, supporting sustained performance under elevated operating temperatures.
• Automotive Qualification — AEC-Q200 rating indicates suitability for automotive electronics that require qualification-level components.
• Wide Temperature Range — Operating range from −55°C to +105°C for use across harsh environmental conditions.
• Ripple Current Performance — Rated ripple current of 1.245 A at 120 Hz and 1.66 A at 10 kHz for effective handling of both low- and high-frequency switching noise.
• Radial Lead Can Package — Robust radial lead mounting and compact dimensions (L: 2.0 cm × D: 1.25 cm) for through-hole assemblies and power modules.
• Standard Tolerance & Polarization — ±20% capacitance tolerance and polarized design consistent with power-supply capacitor requirements.

Typical Applications

• Switching Power Supplies — Bulk smoothing and output filtering to reduce ripple and improve regulator stability in desktop and embedded converters.
• Automotive Electronics — Energy storage and decoupling in vehicle power systems and control modules where AEC-Q200 qualification is required.
• Power Rail Filtering — Local decoupling for power rails subjected to high-frequency switching, leveraging its high ripple-current capability at 10 kHz.

Unique Advantages

• Compact high-capacitance solution: 680 µF in a miniature can reduces board space while maintaining necessary bulk storage for power designs.
• Low ESR impact: 76 mΩ impedance helps minimize voltage ripple and thermal losses in high-current switching environments.
• Long-term durability: 7000-hour life at 105°C enables reliable operation over extended duty cycles and elevated temperatures.
• Automotive-ready qualification: AEC-Q200 rating supports use in automotive-grade designs requiring qualified components.
• Broad temperature capability: −55°C to +105°C operation covers a wide range of industrial and automotive ambient conditions.
• Frequency-capable ripple handling: Specified ripple currents at 120 Hz and 10 kHz accommodate both low- and high-frequency filtering needs.

Why Choose UPW1V681MHD?

The UPW1V681MHD combines high capacitance density, low impedance, and long endurance in a compact radial-can package—making it well suited for designers of switching power supplies and automotive electronics who need dependable smoothing and decoupling components. Backed by Nichicon’s UPW series engineering, this part balances thermal robustness and ripple-current capability for stable power delivery in space-constrained assemblies.

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