UPM1K681MHD6

The UPM1K681MHD6 is an aluminum electrolytic capacitor from Nichicon’s UPM series, designed for low-impedance, high-reliability power applications. It is a polarized radial-lead can (φ18 × 30.5 mm) with 7.5 mm lead spacing and is supplied in bulk/bag packing for mass production.

Engineered for demanding environments, this part combines a 680 µF capacitance at an 80 V rating with a wide operating temperature range and robust endurance characteristics, making it suitable for automotive and other long-life power electronics designs.

Key Features

• Capacitance & Voltage: 680 µF nominal capacitance with an 80 V rated voltage and ±20% tolerance for bulk energy storage and smoothing.
• Temperature Range & Endurance: Specified for operation from −55°C to +105°C and rated for 5000 hours of load life at +105°C, supporting long-term high-temperature reliability.
• Low Impedance: Rated impedance of 65 mΩ, enabling effective decoupling and lower losses in power circuits.
• Ripple Current Handling: Ripple current ratings of 1.047 A at 120 Hz and 1.54 A at 200 kHz to accommodate AC ripple and switching-frequency stress.
• Package & Mounting: Radial lead, can-style package (φ18×30.5L) with 7.5 mm lead spacing and standard lead diameters for through-hole assembly.
• AEC-Q200 & RoHS Compliance: AEC-Q200 rating and RoHS compliance for regulated environments and automotive program qualification.
• Leakage and Loss Characteristics (Series Data): Series specifications include defined leakage current limits and loss angle characteristics to support predictable performance after voltage application and during lifetime tests.

Typical Applications

• Automotive power electronics: Bulk filtering and energy buffering in automotive control modules and power subsystems, leveraging the 80 V rating, 680 µF capacitance and AEC-Q200 qualification.
• DC power supplies and converters: Input/output smoothing and decoupling in DC–DC converters and power rails where sustained ripple handling and low impedance are required.
• Industrial control systems: Energy storage and noise suppression in industrial power and control electronics operating over a wide temperature range.

Unique Advantages

• Long high-temperature life: 5000 hours at +105°C provides predictable endurance for designs exposed to elevated operating temperatures.
• Compact energy storage: 680 µF in a φ18×30.5 mm can offers substantial capacitance in a small radial package for space-constrained boards.
• Low impedance for efficient power handling: 65 mΩ impedance reduces voltage drop and heat generation under ripple conditions.
• Frequency-flexible ripple capability: Specified ripple current values at both 120 Hz and 200 kHz support performance across low-frequency and high-frequency power designs.
• Automotive program readiness: AEC-Q200 qualification aligns the part with automotive development requirements where that standard is required.
• Production-friendly packaging: Bulk/no terminal forming with bag packing supports high-volume assembly and handling workflows.

Why Choose UPM1K681MHD6?

UPM1K681MHD6 delivers a balance of high capacitance, robust voltage rating and low impedance in a compact radial-lead can, suitable for designers targeting reliable power smoothing and energy storage in demanding thermal environments. Its endurance rating at +105°C, AEC-Q200 qualification and RoHS compliance make it a fit for programs that require traceable, long-life components.

This part is ideal for engineers and buyers specifying capacitors for automotive and industrial power electronics where predictable ripple performance, reduced losses and long-term stability are priorities. Supplied for mass production, it supports scalable manufacturing and consistent inventory planning.

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