LQR2W682MSEHBB

The LQR2W682MSEHBB is a screw‑terminal aluminum electrolytic capacitor from Nichicon's LQR series designed for high‑speed charge/discharge and high‑voltage applications. It provides 6800 µF (6.8 mF) capacitance at a 450 V rating in a radial can with screw terminals, targeted for power electronics equipment that requires regenerative energy handling and robust DC bus performance.

Common use cases include AC servomotor regenerative circuits, general inverters, equipment operating in areas with fluctuating voltage, and rectifier circuits such as voltage doublers. The part is RoHS‑compliant and engineered for continuous operation up to 85 °C.

Key Features

• High Capacitance / High Voltage — 6800 µF nominal capacitance at a 450 V rated voltage supports large DC bus energy storage and smoothing for high‑voltage power stages.
• High‑speed Charge/Discharge — Screw terminal construction and LQR series design are suited to high‑frequency regenerative voltage conditions typical in servo and inverter systems.
• Ripple Current Performance — Rated ripple current of 23.3 A at 120 Hz and 32.62 A at 10 kHz supports substantial AC ripple handling across low and high frequency regimes.
• Low ESR — Equivalent series resistance of 150 mOhm at 120 Hz helps limit heating under ripple and improves overall capacitor efficiency in power applications.
• Operating Temperature and Endurance — Rated for −25 °C to +85 °C with an endurance rating of 5000 hours at 85 °C under DC bias plus rated ripple current.
• Mechanical / Mounting — Radial can package with screw terminals for secure, low‑resistance connections in cabinet and chassis installations.
• Environmental Compliance — Compliant with the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• AC Servomotor Regeneration — Energy buffering and smoothing for high‑frequency regenerative voltage in servo drives.
• General Inverter DC Bus — Bulk DC link capacitance for inverter systems requiring high voltage and large capacitance.
• Voltage Doubler Rectifiers — Use in rectifier circuits where voltage doubling and large DC storage are required.
• Equipment in Fluctuating Voltage Areas — Stabilizes power rails and absorbs transient energy in installations subject to voltage swings.

Unique Advantages

• High Energy Storage at 450 V: Large 6800 µF capacitance at 450 V provides significant DC bus energy capacity for power conversion systems.
• Screw Terminal Robustness: Screw terminals enable secure, low‑impedance connections well suited to high current and industrial environments.
• Wide Ripple Frequency Support: Rated ripple currents at both 120 Hz and 10 kHz make this capacitor adaptable to low‑frequency rectifier ripple and higher‑frequency switching environments.
• Controlled ESR: 150 mOhm ESR at 120 Hz reduces internal dissipation and heat generation under ripple loading.
• Engineered Endurance: 5000 hours at 85 °C under rated conditions gives predictable longevity for continuous power system duty.
• Regulatory Compliance: RoHS conformity supports use in regions requiring restricted substances compliance.

Why Choose LQR2W682MSEHBB?

The LQR2W682MSEHBB positions itself as a purpose‑built power capacitor for engineers designing high‑voltage DC link and regenerative systems. Its combination of 6800 µF capacitance, 450 V rating, screw‑terminal construction, and documented ripple and endurance figures make it suitable for inverter, motor drive, and rectifier designs where reliable energy storage and high‑frequency charge/discharge behavior are required.

Backed by Nichicon's LQR series specifications and RoHS compliance, this part delivers measurable electrical and mechanical characteristics for robust system integration and predictable long‑term performance in industrial power electronics applications.

If you would like pricing, lead‑time information, or to request a quote for LQR2W682MSEHBB, please submit a quote request or contact sales to discuss availability and application details.