LQSW6271MELC25

The LQSW6271MELC25 is a Nichicon LQS series aluminum electrolytic capacitor in a snap-in terminal can, rated 270 µF at 420 V. It is engineered for high-speed charge–discharge environments and continuous operation up to 105°C.

Intended for industrial power electronics, the part is well suited to high-frequency regenerative circuits for AC servomotors and general inverters, equipment operating in voltage‑fluctuating areas, and rectifier circuits such as voltage doublers. It combines high-voltage energy buffering with elevated temperature and ripple-handling capability.

Key Features

• Capacitance & Voltage: 270 µF nominal capacitance at a rated voltage of 420 V, with tolerance ±20% at 120 Hz, 20°C.
• Snap‑in Terminal Package: Radial, can-type snap-in mounting for secure board installation and reliable mechanical retention.
• High‑Temperature Operation: Rated for operation from −25°C to +105°C to support demanding thermal environments.
• High‑speed Charge–Discharge Design: Part of the LQS series specified for high-speed charge–discharge performance, suited to regenerative and switching applications.
• Endurance at Elevated Temperature: Specified lifetime of 3000 hours at 105°C under rated conditions.
• Ripple Current Capability: Rated ripple currents of 1.25 A at 120 Hz and 1.788 A at 50 kHz for both low‑ and high‑frequency filtering and buffering.
• Polarized Electrolytic: Polarized construction appropriate for DC link, rectifier and energy‑storage roles in power circuits.
• RoHS Compliant: Conforms to the RoHS directive (2011/65/EU, (EU)2015/863).
• Compact Footprint: Package size approximately L: 2.5 × D: 3.5 cm for power-dense board layouts.

Typical Applications

• AC Servomotor Drives: Energy buffering and regenerative voltage handling in servo inverter DC links and braking circuits.
• General Inverters: DC link and smoothing capacitor for industrial inverters where high ripple and charge–discharge robustness are required.
• Voltage‑Doubler Rectifiers: Use in rectifier circuits that require high‑voltage DC storage and repeated charge–discharge cycles.
• Industrial Equipment in Fluctuating Voltage Environments: Stabilizing and energy‑absorbing capacitor for systems exposed to large or rapid voltage swings.

Unique Advantages

• High‑voltage energy storage: 420 V rating provides margin for 400 V‑class power systems and DC link applications.
• Designed for repeated charge–discharge: LQS series specification targets high‑speed charge–discharge behavior suitable for regenerative circuits.
• Thermal durability: Rated to 105°C with a 3000‑hour endurance specification, supporting continuous operation in hot industrial environments.
• Broad ripple performance: Specified ripple current at both 120 Hz and 50 kHz enables effective filtering across low and high switching frequencies.
• Secure snap‑in mounting: Radial snap‑in can simplifies assembly and provides a mechanically robust connection for power boards.
• Regulatory compliance: RoHS conformity for use in designs that require restricted‑substance compliance.

Why Choose LQSW6271MELC25?

The LQSW6271MELC25 delivers a balance of high‑voltage storage, elevated temperature capability and engineered charge–discharge endurance tailored to industrial power electronics. Its combination of 420 V rating, 270 µF capacitance and specified ripple currents addresses common needs in inverter DC links, regenerative drives and rectifier circuits.

This part is appropriate for design teams and procurement sourcing capacitors for robust industrial applications that demand thermal reliability, repeated charge–discharge performance and RoHS compliance. Choosing the LQSW6271MELC25 supports systems that require compact power filtering and energy buffering in demanding electrical environments.

Request a quote or contact sales to obtain current pricing, lead times and availability for LQSW6271MELC25.