UHE1J681MHD6

The UHE1J681MHD6 is a miniature, radial-lead aluminum electrolytic capacitor from Nichicon’s UHE series, designed for high-reliability, long-life operation. It delivers 680 µF capacitance at a 63 V rated voltage in a compact φ18 × 20 mm can with radial mounting.

Built for general-purpose electronic designs that require low impedance, defined ripple handling, and extended endurance, this part combines a wide operating temperature range (−40°C to +105°C) with a 10,000-hour endurance specification at 105°C for sustained performance in demanding environments.

Key Features

• Capacitance and tolerance — 680 µF nominal with a tolerance of −20% to +20% (measured at 120 Hz, 20°C).
• Rated Voltage — 63 V DC rated voltage for medium-voltage general-purpose designs.
• Low impedance — Specified impedance of 300 mΩ supports stable voltage behavior under load.
• Ripple current capability — Low-frequency ripple current of 975 mA at 120 Hz and high-frequency ripple current of 1.3 A at 10 kHz provide quantified performance across frequency ranges.
• Loss and leakage — Tangent of loss angle (tan δ) 0.09 (measured at 20°C, 120 Hz) and a measured leakage current of 428.4 µA.
• Long-life reliability — 10,000 hours endurance at 105°C (UHE series long-life specification) for sustained operation in elevated temperatures.
• Wide operating temperature — −40°C to +105°C rated operating range for broad environmental tolerance.
• Package and mounting — Radial lead can, size φ18 × 20L with 7.5 mm lead spacing (±0.5 mm); available in bulk or bag packing.
• Polarized — Polarized aluminum electrolytic design for correct polarity-aware circuits.
• RoHS compliant — Manufactured to meet RoHS requirements.

Typical Applications

• General-purpose electronic equipment — Provides bulk capacitance and energy storage where stable DC voltage support is required in general-purpose designs.
• Power filtering and decoupling — 680 µF capacitance combined with specified ripple current ratings helps smooth supply rails and reduce voltage ripple across a range of frequencies.
• Industrial and control electronics — Endurance of 10,000 hours at 105°C and wide temperature range support long-term operation in industrial applications.

Unique Advantages

• Quantified ripple handling: Specified low-frequency (975 mA at 120 Hz) and high-frequency (1.3 A at 10 kHz) ripple currents let designers size capacitors against measured ripple requirements.
• Measured low loss and leakage: tan δ of 0.09 and leakage current value provide predictable AC loss and DC leakage characteristics for reliable power-management calculations.
• Extended high-temperature life: 10,000-hour endurance at 105°C supports designs that require prolonged stability under elevated temperatures.
• Compact radial package: φ18 × 20 mm can with standard 7.5 mm lead spacing enables through-hole mounting while minimizing board space.
• Wide operating range: −40°C to +105°C rating ensures usable performance across common environmental conditions.
• Regulatory alignment: RoHS compliance supports environmental and regulatory requirements.

Why Choose UHE1J681MHD6?

UHE1J681MHD6 positions itself as a reliable, long-life aluminum electrolytic solution for general-purpose electronic designs that need substantial capacitance at a 63 V rating. Its combination of low impedance, defined ripple-current capability across low and high frequencies, and a 10,000-hour endurance at 105°C delivers measurable characteristics that designers can use directly in thermal and reliability planning.

This part is well suited to engineers and procurement teams seeking a compact, radial-lead capacitor with documented performance (capacitance, impedance, tan δ, leakage, and ripple ratings) and RoHS compliance for long-term, predictable operation in a variety of electronic assemblies.

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