UPA1A392MHD

The UPA1A392MHD is a miniature, radial-lead aluminum electrolytic capacitor designed for switching power supplies and general-purpose power electronics. It delivers low impedance and high ripple-current capability in a compact radial can package, making it suitable for space-constrained power designs.

Key value comes from its combination of a 3.9 mF capacitance at 10 V rating, low impedance (44 mΩ), and long endurance at elevated temperature (5,000 hours at 105°C), while remaining RoHS compliant.

Key Features

• Electrical Performance — 3.9 mF capacitance rated at 10 V with an impedance of 44 mΩ, providing stable bulk energy storage and low-loss behavior in power circuits.
• High Ripple Current Capability — Rated ripple current of 1.938 A at 120 Hz and 2.28 A at 10 kHz supports high-frequency and low-frequency ripple handling in switching supplies.
• Compact Radial Can Package — Radial, can-style package with radial leads and 5 mm lead spacing; physical size L: 2.5 × D: 1.25 cm supports compact board layouts.
• Wide Temperature & Endurance — Operating temperature range –55°C to +105°C and a rated lifetime of 5,000 hours at 105°C for long-term reliability in demanding thermal environments.
• Polarized with Standard Tolerance — Polarized construction with a capacitance tolerance of ±20% suitable for typical power-supply decoupling and smoothing roles.
• Regulatory Compliance — Compliant with RoHS directive (2011/65/EU, (EU)2015/863), supporting environmentally constrained designs.
• Series-Level Advantage — Part of the UPA series, offering lower impedance than the UPW series for improved power-performance where specified.

Typical Applications

• Switching Power Supplies — Bulk and output-stage filtering where low impedance and high ripple current capacity reduce voltage ripple and improve transient response.
• General-Purpose Power Electronics — Decoupling and energy storage in compact power modules and board-level power subsystems that require reliable electrolytic capacitance.
• High-Ripple Current Environments — Circuits exposed to continuous ripple stress benefit from the capacitor’s elevated ripple ratings and endurance at 105°C.

Unique Advantages

• Low-Impedance Performance: 44 mΩ impedance reduces AC losses and improves voltage stability under load.
• Compact Footprint with High Capacity: 3.9 mF in a small radial can (L: 2.5 × D: 1.25 cm) enables space-efficient designs without sacrificing capacitance.
• High Ripple Handling Across Frequencies: Specified ripple currents at both 120 Hz and 10 kHz support mixed-frequency power environments.
• Proven High-Temperature Endurance: Rated for 5,000 hours at 105°C to support long-term reliability in hot operating conditions.
• RoHS Compliance: Meets current RoHS requirements for environmentally conscious product builds.
• Series-Level Optimization: Designed in the UPA family for lower impedance compared to UPW, where series comparison is a design consideration.

Why Choose UPA1A392MHD?

UPA1A392MHD is positioned for engineers who need a compact, reliable electrolytic capacitor for switching power supplies and general-purpose power circuits. Its combination of 3.9 mF capacitance, low 44 mΩ impedance, and robust ripple-current ratings make it a practical choice for reducing output ripple and supporting transient loads in tight layouts.

The part’s wide operating temperature range (–55°C to +105°C), 5,000-hour endurance at 105°C, radial-lead package, and RoHS compliance deliver a dependable component for medium-to-high stress applications where long-term stability and regulatory compliance matter.

Request a quote or contact sales to get pricing, availability, and application support for UPA1A392MHD.