LAKW6121MELC25

The LAKW6121MELC25 is a snap‑in terminal aluminum electrolytic capacitor designed for high‑voltage, general‑purpose applications. This radial can (snap‑in) capacitor provides 120 µF capacitance at a 420 V rating with polarized construction for DC energy storage and smoothing.

Engineered for robust operation, the LAK series supports endurance at elevated temperatures and includes safety measures for abnormal overvoltage conditions—making it suitable for equipment that experiences voltage fluctuations and demanding operating environments.

Key Features

• Electrical Performance — 120 µF capacitance with ±20% tolerance and a rated voltage of 420 V for high‑voltage DC smoothing and energy storage.
• High Ripple Capability — Rated ripple currents of 750 mA at 120 Hz and 862.5 mA at 10 kHz to support AC ripple filtering under load.
• Thermal Endurance — Specified operating temperature range of −25 °C to +105 °C and endurance of 2000 hours at 105 °C under rated ripple/current conditions.
• Safety Features — Pressure relief vent designed to operate under abnormal overvoltage without flames or dangerous dispersion of parts.
• Package & Mounting — Snap‑in radial can package for secure board mounting and straightforward assembly in power modules and chassis builds.
• Reliability & Stability — Leakage current specified as I ≤ 3√(C·V) µA after 5 minutes at 20 °C; tan δ ≤ 0.20 at 120 Hz and 20 °C, with defined limits for capacitance, tan δ and leakage after endurance and shelf‑life tests.
• Environmental Compliance — RoHS‑compliant construction.

Typical Applications

• High‑voltage power supplies — DC smoothing and bulk storage in 420 V rails where stable capacitance and defined ripple handling are required.
• Industrial equipment exposed to voltage fluctuation — Energy buffering and filtering in systems subject to varying input or transient voltages.
• General‑purpose high‑voltage circuitry — Polarized capacitor for use in power modules, control cabinets and other assemblies requiring robust high‑voltage electrolytic capacitance.

Unique Advantages

• High voltage rating (420 V): Enables use in higher‑voltage DC circuits without needing series stacking or complex arrangements.
• Long endurance at elevated temperature: 2000 hours at 105 °C under rated conditions supports reliable operation in warm enclosures or high‑power assemblies.
• Designed for fluctuating voltage environments: Improved safety features and abnormal‑voltage tolerance reduce risk in applications with unstable supplies.
• Snap‑in radial package: Facilitates secure mechanical mounting and simplifies insertion into power assemblies and enclosures.
• Measured electrical stability: Defined limits for capacitance change, tan δ and leakage after endurance and shelf‑life testing offer predictable aging behavior for design planning.
• RoHS compliant: Meets environmental regulation requirements for lead‑free assembly processes.

Why Choose LAKW6121MELC25?

The LAKW6121MELC25 pairs a high 420 V rating with 120 µF capacitance and snap‑in packaging to deliver robust, serviceable high‑voltage capacitance for general‑purpose and industrial power designs. Its endurance at 105 °C and specified ripple ratings provide designers with verifiable performance figures for thermal and ripple stress planning.

This capacitor is appropriate for engineers specifying components for equipment subject to voltage fluctuations or elevated operating temperatures who require clear electrical limits, safety provisions and RoHS compliance from a single, board‑mountable component.

If you would like pricing, availability or technical support for design integration, request a quote or contact sales with your quantity and delivery requirements to receive a formal quotation.