LAS2G181MELZ40

The LAS2G181MELZ40 from Nichicon is a snap-in terminal aluminum electrolytic capacitor designed for general purpose applications that experience voltage fluctuations. It combines a smaller case footprint with enhanced ripple-current capability and safety measures for abnormally excessive voltage.

Engineered for demanding thermal conditions, this capacitor is rated for operation from -25°C to 105°C, specified for 2000 hours endurance at 105°C under rated ripple current, and is RoHS compliant.

Key Features

• Capacitance & Voltage — 180 µF nominal capacitance at a rated voltage of 400 V with ±20% tolerance for general-purpose energy storage and smoothing.
• Snap-in Radial Package — Snap-in terminal, radial can package for secure board retention and high-current applications where robust mechanical mounting is required.
• High Temperature Endurance — Rated for operation to 105°C and specified to withstand 2000 hours of rated ripple-current operation at 105°C, supporting long-term thermal stress.
• Ripple Current Performance — Specified ripple current of 950 mA at 120 Hz and 1.093 A at 100 kHz; frequency coefficients provided for scaling ripple-current allowance across frequencies.
• Electrical Loss and Low-Temperature Stability — Tangent of loss angle (tan δ) specified at a maximum of 0.20 (120 Hz, 20°C); impedance ratio Z(-25°C)/Z(+20°C) up to 8 for low-temperature behavior.
• Improved Safety for Abnormal Voltage — Designed with enhanced safety features and a pressure relief vent intended to operate without generating flames or dangerous dispersion under abnormal voltage conditions.
• Compliance — Conforms to the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• General-purpose power filtering — Bulk smoothing and ripple suppression in equipment where reliable DC filtering is required.
• Equipment subject to voltage fluctuations — Suited for systems operating in environments with variable supply conditions thanks to improved abnormal-voltage safety.
• High-temperature systems — Applications that require capacitors capable of sustained performance up to 105°C and long endurance under ripple stress.

Unique Advantages

• Proven high-temperature endurance: Rated to withstand 2000 hours of rated ripple current at 105°C, providing predictable long-term performance in hot environments.
• Enhanced ripple capability: Higher ripple-current ratings (950 mA at 120 Hz, 1.093 A at 100 kHz) support demanding AC-stress conditions without oversized packaging.
• Smaller case size: Smaller case sizes compared with related LAQ series parts, enabling more compact power assemblies.
• Safety-focused design: Pressure relief vent and improved abnormal-voltage measures reduce risk in applications with transient overvoltage exposure.
• Wide operating range: -25°C to 105°C operation makes the part versatile across many industrial and commercial environments.
• RoHS compliant: Meets current RoHS requirements for restricted substances.

Why Choose LAS2G181MELZ40?

The LAS2G181MELZ40 delivers a balance of compact packaging, elevated ripple-current capability, and thermally robust operation for designers needing durable DC smoothing in environments with variable voltage and elevated temperatures. Its snap-in radial form factor simplifies mounting for high-current board layouts while the safety features support reliable operation under abnormal voltage conditions.

This part is well suited for engineers and purchasers specifying capacitors for general-purpose power supplies and industrial equipment where long endurance at 105°C, predictable electrical characteristics, and RoHS compliance are required.

Request a quote or submit an inquiry to receive pricing, availability, and assistance integrating the LAS2G181MELZ40 into your design.