LAK2G121MELB25ZB

The LAK2G121MELB25ZB from Nichicon is a snap‑in terminal aluminum electrolytic capacitor in the LAK series, offering 120 µF capacitance at a 400 V rating. It is a polarized, radial can (snap‑in) capacitor designed for general‑purpose applications where robust voltage tolerance and thermal endurance are required.

Key design points include an extended rated voltage range (200 V, 400 V and 420 V options), improved safety features for abnormally excessive voltage, and endurance to sustained ripple at elevated temperature—making it suitable for equipment operating in environments with fluctuating supply voltage.

Key Features

• Capacitance & Voltage: 120 µF rated at 400 V, with the LAK series offering extended voltage options including 200 V and 420 V.
• High‑temperature endurance: Rated for operation from −25 °C to +105 °C and specified to withstand 2000 hours of rated ripple current at 105 °C.
• Snap‑in radial can package: 25 mm diameter × 25 mm length radial can with snap‑in terminals for secure PCB mounting and mechanical retention.
• Ripple current capability: Specified ripple handling of 600 mA at 120 Hz and 690 mA at 10 kHz for applications subject to AC ripple on DC lines.
• Leakage and loss characteristics: Leakage current specified as I ≤ 3√(C·V) μA after 5 minutes at 20 °C; tan δ ≤ 0.20 at 120 Hz, 20 °C.
• Safety features: Improved safety design including a pressure relief vent that operates without dangerous conditions (no flames, ignition, or dispersion of parts) under abnormal voltage stress.
• Tolerance & polarity: Capacitance tolerance ±20% and polarized construction for DC applications.

Typical Applications

• General‑purpose equipment: Energy storage and smoothing in a wide range of general‑purpose electronic systems where a polarized high‑voltage capacitor is required.
• Voltage‑fluctuating environments: Equipment deployed in areas with supply variations—designed with improved safety features and extended voltage options to tolerate abnormal voltage stress.
• High‑temperature assemblies: Circuits exposed to elevated operating temperatures up to 105 °C, benefitting from the capacitor’s 2000‑hour endurance at rated ripple and high temperature.
• PCB snap‑in mounting: Applications that require robust mechanical retention on PCBs via snap‑in radial can terminals.

Unique Advantages

• Extended voltage flexibility: Availability across 200 V, 400 V and 420 V ratings lets designers select the appropriate voltage margin for their application.
• Proven high‑temperature reliability: Endurance rating of 2000 hours at 105 °C under rated ripple current supports long‑term stability in hotter environments.
• Safety‑oriented design: Pressure relief vent and enhanced safety measures reduce risk under abnormal overvoltage conditions.
• Measurable ripple performance: Specified ripple currents at 120 Hz and 10 kHz provide quantifiable guidance for thermal and reliability budgeting in power circuits.
• Clear electrical limits: Leakage current and tan δ specifications give predictable electrical behavior for design verification and quality control.

Why Choose LAK2G121MELB25ZB?

LAK2G121MELB25ZB positions itself as a robust, general‑purpose polarized aluminum electrolytic capacitor for designs that demand high voltage capability, thermal endurance and enhanced safety under abnormal voltage conditions. Its combination of a 400 V rating, 120 µF capacitance, snap‑in package and documented ripple and leakage specifications make it straightforward to integrate into designs where predictable behavior under stress is important.

This part is suited to engineers specifying capacitors for equipment operating in fluctuating voltage environments or higher ambient temperatures, where long endurance at rated ripple and clear safety features reduce design uncertainty and support long‑term reliability goals.

If you need pricing, availability or a formal quote for LAK2G121MELB25ZB, please request a quote or submit an inquiry to our sales team for further assistance and lead‑time information.