UAQ2G470MHD

The UAQ2G470MHD is a radial-lead aluminum electrolytic capacitor rated at 47 µF and 400 V, designed for general-purpose power applications requiring high voltage handling and elevated temperature capability. It features a φ16 × 35.5 mm can with 7.5 mm lead spacing and is optimized for circuits needing substantial ripple handling and stable operation across a wide temperature range.

Key engineered attributes include a wide operating temperature range of −40°C to +105°C, a 2000 hour endurance at 105°C under DC bias plus rated ripple current, RoHS compliance, and a safety pressure-relief vent. Note: this product is scheduled for discontinuation and is not recommended for new designs.

Key Features

• Capacitance & Voltage: 47 µF capacitance at a 400 V rated voltage, suitable for high-voltage DC smoothing and energy-storage tasks.
• Package & Mounting: Radial-lead, can-style package (φ16 × 35.5 mm) with 7.5 mm lead spacing for through-hole PCB mounting and robust mechanical retention.
• Temperature & Lifetime: Operating range −40°C to +105°C with a rated lifetime of 2000 hours at 105°C when subjected to DC bias plus rated ripple current.
• Ripple Current Performance: High ripple capability specified as 280 mA at 120 Hz and 448 mA at 10 kHz, supporting both low- and high-frequency ripple environments.
• Loss and Leakage: Tangent of loss angle (tan δ) max 0.15 (measured at 120 Hz, 20°C); leakage current meets the series formula 0.04·C·V + 100 μA (for this part: 852 μA) after 1 minute at 20°C.
• Safety Features: Improved safety measures for abnormal voltage conditions and a pressure-relief vent designed to operate without flames or dispersion of case pieces under specified test conditions.
• Regulatory: Compliant with RoHS directives (2011/65/EU, (EU)2015/863).

Typical Applications

• Power Supply Filtering: Bulk smoothing and high-voltage decoupling in power supplies where 400 V rating and elevated temperature endurance are required.
• PFC and Power Conversion: Support for ripple handling in power factor correction circuits and high-voltage converters operating at both line frequency and higher switching frequencies.
• Industrial Electronics: Energy storage and ripple management in industrial controls, instrumentation, and other general-purpose high-voltage electronics.

Unique Advantages

• High-Voltage Capability: 400 V rating enables use in higher-voltage DC circuits without parallel stacks or additional derating.
• Wide Temperature Endurance: −40°C to +105°C operating range combined with a 2000 h life at 105°C supports sustained operation in thermally demanding environments.
• Quantified Ripple Handling: Specified ripple currents at both 120 Hz and 10 kHz allow designers to size capacitors confidently for low- and high-frequency ripple conditions.
• Measured Leakage Specification: Leakage current consistent with the manufacturer’s formula (0.04·C·V + 100 μA) — 852 μA for this part — enabling predictable bias current budgeting.
• Built-in Safety Response: Pressure-relief vent and design features intended to mitigate hazardous failure modes under abnormal voltage stress.
• Regulatory Compliance: RoHS compliance supports use in assemblies requiring restricted substance adherence.

Why Choose UAQ2G470MHD?

UAQ2G470MHD brings together a 400 V rating, robust ripple performance, and wide temperature endurance in a straightforward radial-lead can package, making it suitable for designers addressing high-voltage smoothing and energy-storage needs in industrial and power-conversion systems. Its leakage and tan δ specifications provide predictable electrical behavior for bias and loss calculations, while the 2000 hour endurance rating at 105°C gives a measurable reliability baseline for thermal stress planning.

Because this product is scheduled for discontinuation and is not recommended for new designs, it is best suited for legacy replacement or maintenance of existing assemblies that already specify the UAQ series characteristics.

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