LAQ2G121MELB25

The LAQ2G121MELB25 is a snap-in terminal aluminum electrolytic capacitor designed for general-purpose power applications requiring a 400 V rated device with 120 µF capacitance. It combines a compact radial, can-type snap-in package with a high operating temperature rating and long endurance under rated ripple current.

Key value points include a 400 V working voltage, 105°C permissible temperature rating with 2000 hours endurance under rated ripple conditions, and engineered safety features for applications exposed to fluctuating voltages.

Key Features

• Capacitance & Tolerance: 120 µF nominal capacitance with ±20% tolerance at 120 Hz, 20°C, suitable for bulk energy storage and smoothing where defined capacitance tolerance is required.
• High Voltage Rating: 400 V rated voltage for higher-voltage DC bus applications.
• Temperature & Endurance: Rated for operation from −25°C to +105°C and qualified for 2000 hours at 105°C with DC bias plus rated ripple current applied.
• Ripple Current Performance: Specified low-frequency ripple current of 760 mA at 120 Hz and high-frequency ripple current of 874 mA at 10 kHz to support continuous ripple handling in power circuits.
• Dielectric Loss: tan δ (loss tangent) 0.20 max at 120 Hz, 20°C, enabling predictable dissipation characteristics in design.
• Leakage Current: Specified leakage current 650 µA (measured after rated voltage application conditions), allowing straightforward planning for standby and leakage budgets.
• Package & Mounting: Radial, can-type snap-in package (φ30 × 25 mm) in tray packing for straightforward PCB snap-in assembly.
• Safety Features: Improved safety design with a pressure relief vent intended to operate without creating flames or dispersion under abnormal voltage stress.
• RoHS Compliance: Series documentation indicates compliance with the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• 400 V DC Bus Filtering: Use where a 400 V rated, 120 µF polarized capacitor is required to stabilize DC bus voltage and provide bulk smoothing.
• High-Temperature Power Modules: Suitable for equipment operating up to 105°C where endurance under rated ripple current (2000 hours at 105°C) is needed.
• Equipment in Voltage-Fluctuating Environments: Designed for use in systems subject to fluctuating supply voltages, benefiting from the series’ improved safety features and extended voltage range options.

Unique Advantages

• High Voltage Capability: 400 V rating enables use on higher-voltage DC rails without requiring multiple parts or complex series arrangements.
• Long Endurance at Elevated Temperature: 2000 hours rated life at 105°C under DC bias plus rated ripple current provides predictable lifetime behavior in hot environments.
• Robust Ripple Handling: Specified ripple currents at both 120 Hz and 10 kHz support designs that face both low- and high-frequency ripple content.
• Compact Snap-In Package: φ30 × 25 mm radial snap-in can simplifies board mounting for power assemblies while keeping a small footprint.
• Safety-Minded Design: Pressure relief vent and improved safety features for abnormal over-voltage situations reduce risk of hazardous failure modes.
• Predictable Electrical Losses: tan δ ≤ 0.20 at 120 Hz and 20°C aids thermal and dissipation planning in power designs.

Why Choose LAQ2G121MELB25?

LAQ2G121MELB25 positions itself as a compact, high-voltage aluminum electrolytic solution for general-purpose power designs that require 400 V rating, substantial capacitance (120 µF), and reliable performance at elevated temperatures. Its combination of specified ripple current ratings, defined leakage current, and 2000-hour endurance at 105°C makes it suitable for engineers planning long-term operation under continuous ripple stress.

This part is appropriate for designers and procurement teams building power supplies, power conversion assemblies, and equipment operating in environments with voltage fluctuation or elevated ambient temperatures who need clear, verifiable specifications and a snap-in mounting form factor for straightforward PCB integration.

Please request a quote or submit a parts inquiry to our sales team to discuss pricing, lead time, or volume requirements for LAQ2G121MELB25.