UPJ1A392MHD6

The UPJ1A392MHD6 is a high-reliability, miniature aluminum electrolytic capacitor from Nichicon’s UPJ series. It is a radial-lead, polar capacitor with a nominal capacitance of 3.9 mF (3900 µF) rated at 10 V, designed for general-purpose power applications.

Built for demanding operating conditions, this part offers long endurance (5000 h at 105°C), elevated ripple-current capability, and a compact φ18 × 20 mm can with 7.5 mm lead spacing, making it suitable where durable power smoothing and low-impedance performance are required.

Key Features

• Capacitance & Voltage — 3.9 mF (3900 µF) nominal capacitance at a rated voltage of 10 V with capacitance tolerance of -20% to +20%.
• High Reliability Endurance — Endurance rating of 5000 hours at 105°C for sustained high-temperature operation.
• Low-loss Performance — Measured tangent of loss angle (tanδ) of 0.23 under the condition of 20°C, 120 Hz, 10 V, indicating controlled dissipation for power applications.
• High Ripple-Current Capability — Low-frequency ripple current of 1.656 A (120 Hz) and high-frequency ripple current of 1.84 A (specified at higher frequency), supporting robust filtering under AC ripple load.
• Leakage Current — Specified leakage current of 1170 µA after application of rated voltage, suitable for monitoring and design trade-offs in power systems.
• Compact Radial Can Package — φ18 × 20 mm can with 7.5 mm lead spacing (±0.5 mm lead-spacing tolerance); available in bulk or bag packing for assembly flexibility.
• Wide Operating Temperature — Rated for operation from -55°C to +105°C, enabling use across a wide temperature range.
• RoHS Compliant — Meets RoHS requirements for environmentally conscious designs.

Typical Applications

• Switching Power Supplies — Specifically noted in the UPJ series as suited for switching power supplies, providing low impedance and ripple handling for DC bus and output smoothing.
• General-Purpose Power Filtering — Use where bulk capacitance and endurance are needed for decoupling and smoothing on power rails.
• Industrial and Electronic Modules — Suitable for modules requiring sustained operation at elevated temperatures thanks to a 5000 h endurance at 105°C.

Unique Advantages

• High-energy bulk capacitance in a small can — 3.9 mF capacitance in a compact φ18 × 20 mm package reduces board area while providing significant charge storage.
• Designed for ripple-heavy environments — Rated ripple currents of 1.656 A (120 Hz) and 1.84 A (high frequency) enable effective smoothing under AC ripple loads.
• Long high-temperature life — 5000 hours at 105°C offers predictable long-term behavior in hot operating environments.
• Measurable low dissipation — Specified tanδ = 0.23 at 20°C, 120 Hz, 10 V provides a clear target for thermal and loss budgeting in designs.
• Standard radial-lead format — φ18 can with 7.5 mm lead spacing and available bulk or bag packing for simple through-hole assembly and prototyping.
• RoHS compliance — Facilitates integration into designs that require regulatory-compliant components.

Why Choose UPJ1A392MHD6?

The UPJ1A392MHD6 combines substantial bulk capacitance with design-focused reliability: a 3.9 mF, 10 V polarized capacitor engineered for low-impedance performance and sustained operation at elevated temperatures. Its specified ripple-current ratings, measured tanδ, and 5000-hour endurance at 105°C make it well suited to power supply and general-purpose filtering roles where predictable electrical behavior and thermal endurance matter.

This part is targeted at designers and procurement teams building switching power supplies, power distribution modules, and other systems that require compact, high-capacitance radial electrolytic capacitors with clear, verifiable specifications and RoHS compliance.

Request a quote or contact sales to discuss availability, lead times, and pricing for UPJ1A392MHD6.