LKX2G471MESB50

The LKX2G471MESB50 is an aluminum electrolytic, snap-in terminal capacitor designed for audio equipment and switching power supplies. Built to a 105°C standard series and using selected materials for superior acoustic characteristics, it targets applications that require high-voltage smoothing and reliable long-term operation in power systems and audio circuits.

This radial, can-style capacitor provides 470 µF capacitance at a 400 V rating with polarized construction and snap-in mounting for secure board-level installation. It is RoHS compliant (2011/65/EU, (EU)2015/863).

Key Features

• Capacitance & Voltage: 470 µF rated capacitance at 400 V — suitable for high-voltage filtering and bulk energy storage in power supply rails.
• 105°C High-Temperature Rating: Operates over a temperature range of −25°C to +105°C for the 400 V class, supporting elevated-temperature environments.
• Endurance: Rated for 2000 hours at 105°C under D.C. bias plus rated ripple current; capacitance change is specified within ±20% after endurance testing.
• Ripple Performance: Rated ripple currents of 1.68 A at 120 Hz and 2.402 A at 50 kHz, with frequency coefficients provided in the LKX series datasheet to size for application-specific ripple spectra.
• Mounting & Package: Snap-in terminal, radial can package for robust board retention and efficient assembly in power chassis and supply modules.
• Tolerance & Polarization: Capacitance tolerance ±20% (at 120 Hz, 20°C); polarized electrolytic construction.
• Leakage Current Specification: Leakage current specified as I ≤ 3√3V (µA) after 5 minutes' application of rated voltage at 20°C, per datasheet definition.
• RoHS Compliance: Compliant to RoHS directive (2011/65/EU, (EU)2015/863).
• Physical Size: Package dimensions approximately L: 5 × D: 3 cm with a seated height maximum of 1.969 inch, enabling mechanical planning for enclosure and board layouts.

Typical Applications

• Audio Equipment: Use for power supply smoothing and energy storage in audio amplifiers and preamplifiers where selected materials help achieve superior acoustic performance.
• Switching Power Supplies: Bulk filtering and ripple attenuation on high-voltage rails in industrial and consumer switching supplies.
• General Purpose Power Filtering: Decoupling and bulk capacitance for high-voltage DC buses and power conversion stages requiring polarized electrolytic solutions.

Unique Advantages

• Designed for Elevated Temperatures: 105°C rating with a defined 2000-hour endurance, enabling deployment in thermally demanding power assemblies.
• Audio-Focused Materials: Selected materials and series construction intended to support high-quality acoustic performance in audio applications.
• High-Voltage Capability: 400 V rating provides margin for high-voltage filter and bulk storage needs without multiple lower-voltage caps in series.
• Practical Mounting: Snap-in terminal and radial can format simplify mechanical retention and assembly for chassis-mounted power modules.
• Measured Ripple Data: Published ripple current values at 120 Hz and 50 kHz, plus frequency coefficients in the series datasheet, help designers size capacitors to real-world ripple conditions.
• Regulatory Compliance: RoHS conformity supports use in products requiring lead-free and restricted-substance compliance.

Why Choose LKX2G471MESB50?

The LKX2G471MESB50 positions itself as a high-voltage, high-temperature aluminum electrolytic capacitor tailored for audio and switching power applications. With 470 µF at 400 V, snap-in mounting, defined ripple current ratings, and a 2000-hour endurance at 105°C, it is well suited for designs that need robust bulk capacitance and reliable long-term performance under thermal stress.

This part is appropriate for engineers specifying power rails and audio power stages where material selection and thermal endurance are important considerations. Its RoHS compliance and documented electrical characteristics make it straightforward to evaluate for procurement and system integration.

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