UPW1A392MHD6

The UPW1A392MHD6 is a miniature aluminum electrolytic capacitor from Nichicon's UPW series, designed for compact power designs. It is a radial‑lead, polarized can-style capacitor optimized for low impedance, high ripple handling and long-term reliability in switching power applications.

Targeted at automotive and demanding power-supply environments, this part combines a 3.9 mF capacitance with a 10 V rating and AEC‑Q200 qualification to address space-constrained boards that require robust power filtering and decoupling.

Key Features

• Capacitance & Voltage — 3.9 mF capacitance with a 10 V rated voltage suitable for low-voltage power rails and DC‑DC converter outputs.
• Low Impedance — Specified impedance of 58 mΩ supports improved ripple attenuation and reduced voltage drop under load.
• High Ripple Current Capability — Rated ripple current of 1.879 A at 120 Hz and 2.21 A at 10 kHz to handle switching supply ripple across typical frequency ranges.
• Compact, Radial Package — Radial lead, can package with 7.5 mm lead spacing and compact dimensions (L: 2.0 × D: 1.6 cm) for dense board layouts.
• Wide Temperature Range — Operates from −55 °C to +105 °C, supporting a broad range of environmental conditions.
• Long High‑Temperature Lifetime — Rated for 8,000 hours at 105 °C, providing predictable endurance for continuous high-temperature operation.
• Leakage Current — Series specification: leakage current after 1 minute at 20 °C is ≤ 0.03 C·V (µA), enabling low standby losses in power systems.
• Loss Tangent (tan δ) — Series performance indicates a tan δ max of 0.19 at 10 V (measured at 120 Hz, 20 °C), useful for assessing AC dissipation.
• AEC‑Q200 Qualified — Rated to AEC‑Q200 for designs targeting automotive or similarly demanding reliability requirements.
• Polarized — Electrolytic, polarized design for use where correct polarity is maintained in the circuit.

Typical Applications

• Switching Power Supplies — Local bulk and output filtering in switching regulators where low impedance and high ripple current support stable regulation.
• Automotive Power Electronics — Power rail filtering and decoupling in automotive modules, leveraging AEC‑Q200 qualification and wide operating temperature range.
• DC‑DC Converters — Input/output smoothing and decoupling for compact converter designs that require high ripple endurance in a small footprint.

Unique Advantages

• Low ESR/Impedance: 58 mΩ impedance reduces ripple voltage and power loss, improving regulator performance and thermal behavior.
• Compact Footprint: Small can package and 7.5 mm lead spacing let designers save PCB area without sacrificing capacitance.
• High Ripple Handling Across Frequencies: Rated ripple currents at both 120 Hz and 10 kHz support filtering for a wide range of switching frequencies.
• Designed for Harsh Environments: −55 °C to +105 °C operating range and 8,000 h life at 105 °C deliver durable performance under thermal stress.
• Automotive-Grade Reliability: AEC‑Q200 rating provides traceable qualification for automotive and similarly stringent applications.
• Predictable Leakage Performance: Leakage current spec of ≤0.03 C·V (µA) after application of rated voltage provides consistent standby behavior.

Why Choose UPW1A392MHD6?

The UPW1A392MHD6 balances compact size with electrical performance—offering 3.9 mF at 10 V, low impedance, and robust ripple-current capability in a radial can package. Its AEC‑Q200 qualification, wide temperature range and long high‑temperature lifetime make it well suited to engineers designing compact switching power supplies and automotive power modules that require predictable, long‑term performance.

This capacitor is ideal for designs where board space is limited but reliable power filtering and high ripple endurance are essential. Specified characteristics such as impedance, ripple ratings, and leakage behavior enable straightforward integration and predictable system-level results.

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