LQSW6151MELZ35

The LQSW6151MELZ35 is a high-voltage, snap-in aluminum electrolytic capacitor from Nichicon’s LQS series. It delivers 150 µF capacitance at a 420 V rating in a radial, can-type snap-in package designed for high-speed charge–discharge and demanding power-electronics environments.

Engineered for power conversion and regenerative circuits, this capacitor is suited to AC servomotor drives, inverters and equipment exposed to fluctuating voltages, offering high-temperature endurance and verified charge–discharge reliability.

Key Features

• Voltage & Capacitance: 150 µF nominal capacitance rated at 420 V for high-voltage power applications.
• High-speed charge–discharge capability: Designed for rapid charge–discharge operation; series-level endurance testing includes 50 million charge–discharge cycles (6 Hz) with defined post-test electrical limits.
• High-temperature endurance: Operating temperature range −25 °C to 105 °C and specified endurance of 3000 hours at 105 °C under DC bias plus rated ripple current.
• Snap-in radial can package: Snap-in terminal type and radial can construction for secure board mounting in power assemblies.
• Ripple current performance: Rated ripple current of 840 mA at 120 Hz and 1.201 A at 50 kHz to support AC and high-frequency ripple conditions.
• Polarized design with standard tolerance: Polarized capacitor with capacitance tolerance of −20% to +20% at 120 Hz, 20 °C.
• Regulatory compliance: Compliant to the RoHS directive (2011/65/EU, (EU)2015/863).
• Compact footprint: Physical size L: 3.5 × D: 2.2 cm for dense power-electronics layouts.

Typical Applications

• Servo drives and motor control: Supports high-frequency regenerative voltage in AC servomotor circuits to stabilize DC bus and absorb regenerative energy.
• Inverters and general-purpose converters: Used in inverter DC link and energy-storage sections where high-voltage, high-temperature performance is required.
• Voltage-doubler rectifier circuits: Suitable for rectifier circuits in voltage doubler topologies requiring reliable high-voltage capacitance.
• Equipment in fluctuating-voltage environments: Built for systems exposed to varying supply conditions where sustained ripple and transient endurance are important.

Unique Advantages

• High-voltage capability: 420 V rating enables use in DC bus and high-voltage power stages without series stacking.
• Verified charge–discharge reliability: Series endurance testing (50 million cycles at 6 Hz) demonstrates suitability for repetitive regenerative and switching stresses.
• Thermal robustness: Rated for continuous operation to 105 °C with 3000-hour endurance under specified conditions, reducing the need for overspecification.
• Strong ripple handling: Distinct ripple current ratings at 120 Hz and 50 kHz allow designers to size for both low-frequency and high-frequency ripple environments.
• Space-efficient form factor: Radial snap-in can design simplifies assembly and secures mechanical retention in power modules.
• RoHS compliance: Meets RoHS (2011/65/EU, (EU)2015/863) requirements for environmentally conscious designs.

Why Choose LQSW6151MELZ35?

LQSW6151MELZ35 combines high-voltage performance, verified high-speed charge–discharge endurance and elevated temperature tolerance, making it a practical choice for engineers building rugged power-electronics systems such as inverters, servo drives and voltage-doubler rectifiers. Its snap-in radial can package and measured ripple-current capability simplify integration into DC bus and energy-storage sections while supporting compact board layouts.

This Nichicon LQS-series capacitor is targeted at designs that require sustained electrical performance under thermal and ripple stress, offering predictable long-term behavior through defined endurance and charge–discharge test criteria.

Request a quote or contact sales to discuss pricing, lead times and application-specific support for the LQSW6151MELZ35.