UTHW6680MND

The UTHW6680MND from Nichicon is a high-voltage, miniature-sized aluminum electrolytic capacitor in the UTH series, designed for long-life operation in general-purpose power applications. It is a polarized, radial-lead, can-style capacitor rated at 420 V with a nominal capacitance of 68 µF and a ±20% tolerance.

Engineered for demanding high-voltage DC applications, the UTHW6680MND combines elevated ripple-current capability, robust leakage-current specifications, and extended endurance (5000 hours at 105°C) for reliable performance in power filtering and smoothing roles.

Key Features

• Capacitance and Tolerance: 68 µF nominal capacitance with ±20% tolerance at 120 Hz, 20°C for predictable decoupling and energy storage.
• High Voltage Rating: Rated for 420 V to support high-voltage DC filtering and smoothing applications.
• Ripple Current Performance: Rated ripple current of 540 mA at 120 Hz (low frequency) and 864 mA at 10 kHz (high frequency), supporting both mains-frequency and higher-frequency ripple conditions.
• Leakage and Loss Characteristics: Specified leakage current of 1242.4 µA for this part; datasheet leakage-current criteria are defined by 0.04CV+100 µA after 1 minute and 0.02CV+25 µA after 5 minutes at 20°C. Maximum tan δ is 0.20 at rated voltage.
• Long Life and Temperature Range: Endurance of 5000 hours at 105°C under DC bias plus rated ripple current, and rated for operation from −40°C to +105°C.
• Package and Mounting: Radial-lead, can-style construction with φ18×20L case size and 7.5 mm lead spacing for through-hole PCB mounting; supplied in bulk/bag for mass production builds.

Typical Applications

• High-voltage DC filtering: Smoothing and decoupling in DC bus and power-supply circuits where a 420 V rating is required.
• Power-supply energy storage: Bulk charge storage and transient handling in general-purpose power electronics.
• Industrial and commercial equipment: General-purpose filtering and smoothing in equipment that benefits from long-life electrolytic capacitors rated to 105°C.

Unique Advantages

• High-voltage capability: 420 V rating enables use in DC-link and high-voltage supply applications without additional series components.
• Extended endurance: 5000 hours at 105°C under rated conditions provides predictable long-term performance in elevated-temperature environments.
• Frequency-diverse ripple handling: Specified ripple currents at both 120 Hz and 10 kHz address low- and high-frequency ripple scenarios common in modern power designs.
• Clear electrical characterization: Leakage-current specification and tan δ limit (0.20) give engineers measurable parameters for design and reliability calculations.
• Compact radial can format: φ18×20L radial-can package with 7.5 mm lead spacing simplifies through-hole assembly and replacement in existing designs.

Why Choose UTHW6680MND?

UTHW6680MND is positioned for engineers who need a compact, high-voltage electrolytic capacitor with defined long-life performance. Backed by Nichicon’s UTH series design, it delivers the electrical characteristics—68 µF at 420 V, controlled leakage, defined tan δ, and rated ripple current—required for dependable DC filtering and bulk energy storage in general-purpose power electronics.

This capacitor is suited to designs that demand a balance of voltage capability, ripple handling across frequencies, and extended thermal endurance. It provides predictable, verifiable parameters that simplify component selection and lifetime planning for production environments.

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