UHE1V681MHD6

The UHE1V681MHD6 is a radial-lead, miniature aluminum electrolytic capacitor from Nichicon’s UHE series, offering a 680 µF capacitance at a 35 V rating. It is designed for general-purpose electronics that require a compact, low-impedance, polarized capacitor with extended high-temperature endurance.

Key value comes from its low impedance (120 mΩ), high ripple-current capability at both low and high frequencies, and long endurance at elevated temperature (10,000 hours at 105 °C for this case size and voltage range), making it suitable where sustained performance and reliability are required within the specified ratings.

Key Features

• Capacitance & Voltage — 680 µF nominal capacitance with a rated voltage of 35 V and capacitance tolerance of −20% to +20%.
• Low Impedance — Specified impedance of 120 mΩ supports lower voltage ripple under load.
• High Ripple-Current Capability — Low-frequency ripple current 1.425 A (120 Hz) and high-frequency ripple current 1.9 A (10 kHz), enabling effective handling of both bulk and high-frequency ripple within the rated conditions.
• Dielectric Loss (tan δ) — tan δ = 0.12 measured at 20 °C, 120 Hz for the 35 V rating, indicating controlled dissipation factor for stability in AC conditions.
• Leakage Current — Specified leakage current of 238 µA after application of rated voltage, supporting predictable standby and operating behavior.
• Extended Endurance — Life rating of 10,000 hours at 105 °C under the specified test conditions for this case size and voltage range, reflecting the UHE series’ high-reliability design.
• Temperature Range — Operates across −40 °C to +105 °C to cover a wide range of equipment ambient conditions.
• Compact Radial Package — Cylindrical can, ϕ12.5 × 20 mm length with 5 mm lead spacing (±0.5 mm), supplied bulk or bag-packed without terminal forming for through-hole radial mounting.
• Regulatory Status — RoHS compliant.

Typical Applications

• General Purpose Electronics — Suitable where a 35 V, 680 µF polarized aluminum electrolytic is required within the stated temperature and life specifications.
• Through-Hole Power Filtering — Radial-lead package and defined ripple-current ratings make it applicable for board-mounted filtering in designs that fit the ϕ12.5 × 20 mm footprint and 5 mm lead spacing.
• High-Temperature, Long-Life Designs — Use in equipment requiring continuous operation at elevated ambient temperatures up to 105 °C with a 10,000-hour endurance expectation under rated conditions.

Unique Advantages

• Predictable High-Temperature Reliability — Endurance specified at 10,000 hours at 105 °C for the applicable case size and voltage, enabling confident selection for long-life applications.
• Broad Frequency Ripple Handling — Separate ripple-current specifications at 120 Hz and 10 kHz (1.425 A and 1.9 A) allow designers to account for both low- and high-frequency ripple stresses.
• Low-Impedance Performance — 120 mΩ impedance reduces voltage variation under load and helps maintain stability in power circuits.
• Compact, Through-Hole Form Factor — ϕ12.5 × 20 mm can with 5 mm lead spacing fits space-constrained PCBs that require radial-lead electrolytic solutions.
• Clear Electrical Characteristics — Specified tan δ, leakage current, and tolerance values enable accurate design margins and predictable behavior in end products.
• RoHS Compliance — Meets RoHS directive requirements for restricted substances.

Why Choose UHE1V681MHD6?

The UHE1V681MHD6 pairs a high nominal capacitance with a 35 V rating in a compact, radial-lead aluminum can that delivers low impedance, strong ripple-current capacity, and defined long-term endurance at elevated temperature. It is positioned for designers who need a reliable, general-purpose electrolytic solution with measurable electrical parameters for predictable system behavior.

This part is well suited for engineers and procurement teams specifying through-hole capacitors for equipment that must operate across −40 °C to +105 °C and where extended life at high temperature and clear ripple/current handling figures are important. The combination of datasheet-backed electrical characteristics and RoHS compliance supports robust, maintainable designs.

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