UPZW6390MHD

The UPZW6390MHD is a miniature, high-voltage aluminum electrolytic capacitor from Nichicon's UPZ series, designed as a high-reliability radial-lead can for general-purpose applications. It combines a 39 µF capacitance with a 420 V rated voltage and polarized construction to support high-voltage filtering and energy-storage requirements in compact assemblies.

Engineered for demanding thermal conditions, this capacitor supports operation from −40 °C to +105 °C and is specified for 2,000 hours at 105 °C under rated conditions, delivering predictable endurance in elevated-temperature environments.

Key Features

• Electrical Performance: 39 µF capacitance with a 420 V rated voltage and capacitance tolerance of ±20% (120 Hz, 20 °C) for predictable filtering and decoupling at high voltage.
• High-temperature Endurance: Rated for 2,000 hours at 105 °C under DC bias plus rated ripple current; after endurance testing, capacitance change remains within ±20% and leakage current remains at or below initial specified values.
• Ripple Current Capability: Rated ripple current of 310 mA at 120 Hz and 465 mA at 10 kHz (105 °C), supporting steady-state and higher-frequency ripple handling requirements.
• Thermal Range: Wide operating temperature range from −40 °C to +105 °C for stability across varied ambient conditions.
• Loss and Leakage Characteristics: Series specifications include a maximum tan δ of 0.20 at the 420 V rating and a leakage current defined by the series formula (≤ 0.04CV + 100 µA after 1 minute at 20 °C), enabling design-level verification of dissipation and insulation.
• Compact Radial Can Package: Radial, can-style construction with a lead spacing of 5 mm and physical size L: 3.05 × D: 1.25 cm for compact PCB layouts and through-hole assemblies.

Typical Applications

• Power Supplies: General-purpose high-voltage filtering and bulk energy storage where a 420 V, 39 µF polarized capacitor is required.
• Industrial Electronics: High-voltage decoupling and ripple suppression in industrial control and power circuitry operating across a wide temperature range.
• High-Voltage DC Circuits: Energy buffering, smoothing, and ripple control in DC-link and HV auxiliary circuits benefitting from the UPZ series’ high-voltage miniature form factor.

Unique Advantages

• High-voltage capability: 420 V rating allows use in HV power stages and DC-link applications without overspecifying capacitance.
• Thermal endurance: Specified 2,000-hour life at 105 °C provides predictable long-term behavior in elevated-temperature installations.
• Frequency-aware ripple handling: Published ripple current values at 120 Hz and 10 kHz help designers size capacitors for both mains-frequency and higher-frequency ripple conditions.
• Compact radial can form factor: Small L × D footprint and 5 mm lead spacing simplify placement in space-constrained through-hole assemblies.
• Verifiable electrical limits: Series leakage and tan δ specifications enable conservative, engineering-driven margining for reliability-focused designs.

Why Choose UPZW6390MHD?

The UPZW6390MHD positions itself as a compact, high-voltage aluminum electrolytic solution for engineers needing reliable performance in constrained spaces. With a 420 V rating, defined ripple current behavior across frequencies, and a 2,000-hour endurance at 105 °C, it is well suited to designs that require predictable electrical and thermal performance over time.

This part is appropriate for designers of power supplies, high-voltage DC circuits, and industrial electronics who prioritize quantified endurance and thermal limits, compact radial packaging, and clear leakage and dissipation specifications for robust system-level design decisions.

Request a quote or contact sales to discuss availability, pricing, and how UPZW6390MHD can be integrated into your next high-voltage design.