UPA0J392MHD

The UPA0J392MHD from Nichicon is a miniature radial aluminum electrolytic capacitor in the UPA series, designed for low impedance and high reliability in switching power supply applications. It provides 3.9 mF capacitance at a 6.3 V rating, in a compact radial can package suitable for general-purpose power filtering and ripple suppression.

Key value propositions include low impedance (44 mΩ), high ripple-current capability across frequency, and extended endurance at elevated temperature—attributes that support compact power designs that demand sustained performance.

Key Features

• Electrical Performance — 3.9 mF capacitance with a rated voltage of 6.3 V and polarization suited for DC power applications; capacitance tolerance is ±20%.
• Low Impedance — Specified impedance of 44 mΩ, helping reduce voltage ripple and improve transient response in power circuits.
• High Ripple Current Capability — Rated ripple currents of 1.938 A at 120 Hz and 2.28 A at 10 kHz support switching power supply filtering across common ripple frequencies.
• Compact Radial Package — Radial lead, can-style package with dimensions L: 2.5 × D: 1.25 cm and 5 mm lead spacing for efficient PCB placement in space-constrained designs.
• Wide Temperature & Endurance — Operating temperature range −55°C to +105°C and rated lifetime of 5000 hours at 105°C for long-term reliability under elevated-temperature stress.
• Environmental Compliance — RoHS compliant for regulatory and environmental conformance.
• Series Advantages — Part of the UPA series, noted for lower impedance and smaller case size compared with related series.

Typical Applications

• Switching Power Supplies — Bulk and output filtering to smooth ripple and support steady DC rails in switching regulators.
• General-Purpose Power Filtering — Decoupling and energy storage where a compact, polarized electrolytic with high ripple capability is required.
• Space-Constrained Power Modules — Compact radial can and short lead spacing make it suitable for designs where board area and height are limited.

Unique Advantages

• Low ESR/Impedance — 44 mΩ impedance helps minimize ripple voltage and improves overall power-supply stability.
• Frequency-Resilient Ripple Handling — Specified ripple current values at 120 Hz and 10 kHz provide quantifiable performance for both low- and high-frequency ripple environments.
• Compact Footprint — Small can dimensions (2.5 × 1.25 cm) and 5 mm lead spacing reduce PCB area without sacrificing capacitance.
• High-Temperature Endurance — 5000 hours at 105°C supports reliable operation in thermally challenging installations.
• Radial Through-Hole Convenience — Radial lead package simplifies assembly for through-hole production and prototyping workflows.
• RoHS Compliance — Meets RoHS requirements for regulated markets and environmental considerations.

Why Choose UPA0J392MHD?

UPA0J392MHD positions itself as a compact, low-impedance aluminum electrolytic capacitor tailored for switching power supplies and general-purpose power filtering where board space and ripple performance matter. Its combination of measurable ripple-current capability, low impedance, wide temperature range, and extended endurance at 105°C makes it appropriate for engineers seeking predictable, durable bulk capacitance in through-hole form factors.

This Nichicon UPA series part is well suited to designers and procurement teams building compact power modules, DC–DC converter outputs, and other applications that require reliable DC smoothing over the long term while maintaining a small physical footprint.

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