LAS2G271MELA40ZB

The LAS2G271MELA40ZB is a Nichicon LAS series aluminum electrolytic capacitor in a snap‑in terminal can, rated at 270 µF and 400 V. It is designed for general‑purpose power applications requiring high voltage handling, bulk capacitance and a compact snap‑in mounting.

Key value comes from its 105°C endurance (2000 hours under rated ripple conditions), improved safety features for abnormally excessive voltage, and a smaller case size with elevated ripple capability compared to the LAQ series — all while meeting RoHS requirements.

Key Features

• Capacitance & Voltage — 270 µF nominal capacitance with a 400 V rated voltage and ±20% tolerance, providing substantial energy storage for high‑voltage circuits.
• High‑Temperature Endurance — Specified to withstand 2000 hours of D.C. bias plus rated ripple current at 105°C, with defined limits for capacitance change, tan δ and leakage current after endurance testing.
• Ripple Current Performance — Rated ripple current of 1.3 A at 120 Hz and 1.495 A at 10 kHz, with frequency coefficients documented for higher frequency operation to guide thermal design.
• Safety Features — Improved safety design for abnormally excessive voltage conditions; pressure relief vent operation is specified to avoid dangerous outcomes under abnormal stress.
• Package & Mounting — Snap‑in terminal can (radial, can - snap‑in) offers secure PCB mounting and compact footprint: diameter 25 mm × length 40 mm (L: 4.0 cm × D: 2.5 cm).
• Operating Range & Polarization — Polarized capacitor rated for −25°C to +105°C operation, suitable where elevated ambient temperature and high DC voltage occur.
• Environmental Compliance — Compliant with RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• General‑purpose power filtering — Bulk smoothing and decoupling in high‑voltage power supplies and converters where 270 µF at 400 V is required.
• DC link and energy storage — Energy buffering in industrial and commercial power electronics operating near or up to 400 V DC.
• High‑temperature installations — Applications that require sustained ripple handling and stability at elevated ambient temperatures up to 105°C.

Unique Advantages

• Extended high‑temperature life: 2000‑hour endurance at 105°C under rated ripple conditions supports long service intervals and predictable ageing behavior.
• Improved safety under abnormal voltage: Specified pressure relief and safety performance reduce hazardous failure modes in overvoltage events.
• Compact snap‑in package: Smaller case size than comparable LAQ parts while delivering higher ripple current, saving board space without sacrificing performance.
• Frequency‑aware ripple capability: Published ripple current values and frequency coefficients allow designers to size thermal management for both low and high frequency ripple environments.
• RoHS compliant: Meets applicable environmental directives for use in regulated products and supply chains.

Why Choose LAS2G271MELA40ZB?

The LAS2G271MELA40ZB combines high voltage capability (400 V), substantial capacitance (270 µF) and a compact snap‑in can to address demanding general‑purpose power applications. Its documented endurance at 105°C and improved safety features make it suitable for designs where thermal stress and occasional voltage excursions are concerns.

Engineers and procurement teams will find this Nichicon LAS series part appropriate for industrial and commercial power designs that require reliable high‑voltage bulk capacitance, clear ripple current data across frequency, and RoHS compliance for regulated markets.

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