LQS2V271MELB25

The LQS2V271MELB25 is a snap-in terminal aluminum electrolytic capacitor from Nichicon's LQS series, rated at 270 µF and 350 V. It is designed for high-speed charge–discharge environments and high-frequency regenerative voltage conditions.

Optimized for inverter and motor-drive systems, this radial can (snap-in) capacitor offers high-temperature operation up to 105°C and specifications targeted at applications with fluctuating voltages and demanding ripple current requirements.

Key Features

• Core Type – Aluminum Electrolytic, Snap-in Terminal Radial can with snap-in mounting for secure through-hole installation and mechanical stability.
• Electrical Rating 270 µF nominal capacitance at a rated voltage of 350 V with ±20% tolerance.
• High-Temperature Operation Rated operating temperature range −25°C to +105°C with endurance specified for 3000 hours at 105°C.
• High-Speed Charge–Discharge Endurance Specified endurance for charge–discharge behavior: performance maintained after 50 million charge–discharge cycles (6 Hz, ΔV = rated voltage + 0.35 V) at room temperature per datasheet limits.
• Ripple Current Capability Rated ripple current of 1.1 A at 120 Hz and 1.573 A at 50 kHz to support high-frequency applications.
• Leakage and Dissipation Characteristics Leakage current and tan δ limits are defined in the LQS series specifications (leakage I ≤ 3√CV μA after 5 minutes at 20°C; tan δ max. 0.15 at 350–420 V).
• RoHS Compliant Conforms to RoHS directives (2011/65/EU, (EU)2015/863).
• Compact Footprint Physical size L: 2.5 cm × D: 3 cm for power-dense board layouts.
• Polarized Designed as a polarized electrolytic capacitor for DC applications.

Typical Applications

• AC Servomotor Drives Supports high-frequency regenerative voltage in servo systems where rapid charge–discharge performance is required.
• General Inverters and Motor Drives Suited for inverter DC-link and support circuits in systems exposed to fluctuating voltages.
• Voltage Doubler Rectifier Circuits Intended for rectifier circuits of voltage doubler topologies that require robust high-voltage capacitance.
• Industrial Equipment in Fluctuating-Voltage Environments Designed for equipment operating in areas with voltage variability, leveraging high-temperature endurance and ripple handling.

Unique Advantages

• High-Temperature Endurance: Rated for 3000 hours at 105°C, providing predictable performance under elevated operating temperatures.
• Designed for Repeated Charge–Discharge: Specified to meet capacitance, tan δ and leakage requirements after 50 million charge–discharge cycles at room temperature, supporting demanding regenerative applications.
• High-Frequency Ripple Handling: Specified ripple current values at 120 Hz and 50 kHz enable use in both low- and high-frequency power conversion tasks.
• Secure Snap-In Mounting: Snap-in terminal and radial can package ensure robust mechanical retention for through-hole power assemblies.
• Regulatory Compliance: RoHS compliance supports deployments where restricted-substance conformity is required.

Why Choose LQS2V271MELB25?

The LQS2V271MELB25 combines a high-voltage 350 V rating with 270 µF capacitance in a snap-in aluminum electrolytic package engineered for high-speed charge–discharge and high-frequency regenerative environments. Its defined endurance at elevated temperature (3000 hours at 105°C) and explicit charge–discharge lifecycle specifications make it suited for industrial power conversion, inverter and servo applications that demand thermal robustness and repeatable performance.

Engineers designing inverter DC-link stages, motor drive systems, or voltage-doubler rectifiers will find the LQS2V271MELB25 a specification-driven component that aligns with the LQS series datasheet parameters from Nichicon.

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