UCPW6121MHD

The UCPW6121MHD is a Nichicon UCP-series aluminum electrolytic capacitor in a radial-lead, can-style package designed for general-purpose high-voltage applications. It pairs 120 µF capacitance with a 420 V rated voltage and a compact φ16 × 35.5 mm profile to deliver high-voltage bulk energy storage and smoothing in space-conscious designs.

Engineered for durability, this part offers a 10,000-hour rated lifetime at 105°C and an operating temperature range from −40°C to 105°C, making it suitable for long-life service in demanding thermal environments.

Key Features

• Capacitance & Voltage — 120 µF rated capacitance at 420 V with ±20% tolerance (120 Hz, 20°C) for stable high-voltage energy storage.
• Radial Can Package — Radial lead mounting, φ16 × 35.5 mm case size and 7.5 mm lead spacing for straightforward through-hole assembly and secure mechanical retention.
• High Temperature Endurance — Rated for 10,000 hours at 105°C (endurance condition), with specified recovery to meet capacitance, tan δ and leakage requirements after the lifecycle test.
• Ripple Handling & Loss — Low-frequency ripple current of 780 mA at 120 Hz and high-frequency ripple capability of 1.17 A at 10 kHz, with tan δ specified at 0.24 (measurement at 120 Hz, 20°C).
• Leakage Current — Specified leakage current of 2,116 µA (measured after 1 minute at 20°C), enabling predictable bias current considerations in design.
• Wide Operating Range — −40°C to 105°C operational range for use across varied thermal environments.
• Production & Packaging — Available in bulk/bag packaging and designated for mass production use.
• Polarized Design — Standard polarized aluminum electrolytic suitable where polarity is maintained in circuit design.

Typical Applications

• High-Voltage Power Supplies — Bulk smoothing and ripple reduction on DC rails where a 420 V rated capacitor is required.
• DC Bus & Energy Storage — Local energy reservoir and decoupling on high-voltage DC buses benefiting from 120 µF capacitance and specified ripple handling.
• Industrial Electronics — General-purpose high-voltage circuits in industrial equipment that require long-life electrolytic capacitance and robust thermal endurance.

Unique Advantages

• High Voltage Capability: 420 V rating enables use in higher-voltage circuits without series stacking or complex topologies.
• Long-Life Assurance: 10,000-hour endurance at 105°C provides predictable ageing characteristics for designs requiring extended service life.
• Strong Ripple Performance: Defined ripple current ratings at both low (780 mA at 120 Hz) and high frequency (1.17 A at 10 kHz) support effective smoothing across switching and line-frequency applications.
• Compact Radial Form Factor: φ16 × 35.5 mm can with 7.5 mm lead spacing offers a space-efficient through-hole solution for retrofit or new-board designs.
• Defined Electrical Loss and Leakage: Specified tan δ (0.24) and measured leakage current (2,116 µA) permit predictable thermal and bias-current budgeting in system design.
• Production-Ready Packaging: Bulk/bag packaging and mass-production status simplify procurement and volume assembly planning.

Why Choose UCPW6121MHD?

The UCPW6121MHD combines a high 420 V rating with substantial 120 µF capacitance in a compact radial electrolytic can, delivering a practical balance of energy storage, ripple handling and long-term thermal endurance. Its specified leakage, tan δ and ripple current values make electrical behavior predictable for designers planning bias, thermal and ripple budgets.

This part is well suited to engineers and procurement teams seeking a mass-production ready, general-purpose high-voltage electrolytic solution from Nichicon’s UCP series, where lifecycle stability and clear electrical specifications are important design criteria.

Request a quote or contact sales to inquire about pricing, lead times and volume availability for the UCPW6121MHD.