LGUW6271MELC

The LGUW6271MELC is a snap-in terminal aluminum electrolytic capacitor from Nichicon's LGU series. It delivers 270 µF capacitance at a 420 V rating in a radial can snap-in package intended for general-purpose power applications.

Engineered for elevated operating temperatures, the capacitor is specified for operation up to 105°C and is designed to withstand 3000 hours of rated ripple-current application at that temperature, offering long-term stability in demanding thermal environments.

Key Features

• Capacitance & Voltage: 270 µF capacitance with a 420 V rated voltage suitable for high-voltage general-purpose use.
• High-temperature Endurance: Rated for operation to 105°C and specified to endure 3000 hours with application of rated ripple current at 105°C.
• Ripple Current Performance: Defined ripple current capability of 1.22 A at 120 Hz and 1.745 A at 50 kHz, supporting both low- and high-frequency ripple conditions.
• Package & Mounting: Radial, can-style snap-in package for secure board retention and high-reliability power assemblies; polarization is identified.
• Temperature Range & Stability: Operating temperature range of −25 °C to +105 °C (per rated voltage) with capacitance tolerance of −20% to +20% (±20% at 120 Hz, 20 °C).
• RoHS Compliance: Compliant with RoHS directive (2011/65/EU, (EU)2015/863), meeting environmental substance restrictions.

Typical Applications

• General-purpose power systems: Bulk energy storage and smoothing on high-voltage rails where 420 V rating and 270 µF capacitance are required.
• Power conversion modules: Use in power supplies and converters that demand high-voltage capacitors with defined ripple-current capability and elevated temperature endurance.
• Industrial electronics: Applications requiring robust, snap-in mounted electrolytic capacitors rated for sustained operation at up to 105 °C.

Unique Advantages

• Proven high-temperature reliability: Specified endurance of 3000 hours at 105 °C under rated ripple current, supporting designs exposed to sustained thermal stress.
• High-voltage capability: 420 V rating enables deployment on higher-voltage DC rails without component substitution.
• Defined ripple performance: Published ripple current values at both 120 Hz and 50 kHz allow designers to match the component to expected ripple conditions.
• Secure snap-in mounting: Radial, can-style snap-in package simplifies mechanical assembly and provides reliable board retention in power assemblies.
• Environmental compliance: RoHS-compliant construction supports regulatory requirements for restricted substances.

Why Choose LGUW6271MELC?

The LGUW6271MELC combines high-voltage performance, defined ripple-current capability, and long-term high-temperature endurance in a snap-in aluminum electrolytic package. It is positioned for engineers designing general-purpose power and industrial electronics systems that require 420 V capability and reliable operation up to 105 °C.

This part is suitable for designs that value clear, verifiable electrical and thermal specifications—providing predictable behavior over long endurance periods and simplifying component selection for high-voltage power assemblies.

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