UPJ1H391MHD6

The UPJ1H391MHD6 is a miniature, high-reliability aluminum electrolytic capacitor from Nichicon’s UPJ series. It is a radial-lead, polarized capacitor specified at 390 µF and 50 V, designed for general-purpose power applications.

Engineered for low impedance and long-term operation, this part delivers a 5000-hour endurance at 105°C, wide operating temperature range from -55°C to 105°C, and measurable ripple-handling capability for demanding power-supply and filtering roles.

Key Features

• Capacitance & Voltage: 390 µF rated capacitance with a 50 V rated voltage and a capacitance tolerance of -20% to +20% (measured at 20°C, 120 Hz).
• Low Loss / Dissipation Factor: tanδ = 0.10 specified at 20°C, 120 Hz, providing predictable loss characteristics for power applications.
• High Endurance: 5000 hours load life at 105°C, supporting extended operation under elevated temperature stress.
• Ripple Current Capability: 594 mA at 120 Hz (low frequency) and 990 mA at high frequency, enabling effective smoothing and decoupling in switching supplies.
• Leakage Current: Specified leakage current of 585 µA for predictable standby and bias behavior.
• Thermal Range & Stability: Rated to operate from -55°C to 105°C with specified impedance stability at low temperatures per the UPJ series data.
• Package & Mounting: Radial lead, can-style package with dimensions φ16 × 15 mm (diameter × length) and 7.5 mm lead spacing (±0.5 mm). Available in bulk/bag packing.
• Environmental Compliance: RoHS compliant as part of the UPJ series.

Typical Applications

• Switching Power Supplies: Low-impedance construction and rated ripple currents make this capacitor suitable for bulk filtering and output smoothing in switching regulators.
• DC–DC Converters: Compact φ16 × 15 mm size and high ripple capability support local decoupling and energy storage on converter outputs.
• Industrial Power Electronics: Extended 105°C endurance and wide temperature range suit general-purpose power filtering in industrial controllers and power modules.

Unique Advantages

• Long Load-Life at Elevated Temperature: 5000 hours at 105°C provides predictable aging and endurance for designs that operate hot or with continuous load.
• Measured Low Dissipation: tanδ = 0.10 at 20°C/120 Hz offers lower loss behavior, which helps maintain efficiency in power stages.
• High Ripple Handling: Dual ripple specifications (594 mA at 120 Hz and 990 mA at high frequency) give designers clear guidance for both mains-frequency and switching-frequency applications.
• Compact Radial Form Factor: φ16 × 15 mm can with 7.5 mm lead spacing provides a space-efficient footprint for through-hole assemblies.
• Predictable Leakage: Specified leakage current (585 µA) supports reliable biasing and standby performance in power circuits.
• RoHS Compliance: Meets RoHS requirements as stated for the UPJ series, supporting regulatory needs for many commercial and industrial designs.

Why Choose UPJ1H391MHD6?

UPJ1H391MHD6 is positioned for designers needing a compact, durable electrolytic capacitor with clear, application-oriented electrical parameters. Its combination of 390 µF capacitance, 50 V rating, low tanδ, and dual-frequency ripple specifications makes it suitable for power-supply filtering and decoupling in constrained through-hole assemblies.

Built on Nichicon’s UPJ series platform, this part offers long-term operational life at elevated temperatures and RoHS compliance, making it a practical choice for equipment designers seeking predictable performance and component longevity.

If you would like pricing or availability information, request a quote or submit an inquiry to receive a tailored response for your project requirements.