LQR2V682MSEHBB

The LQR2V682MSEHBB is a screw-terminal aluminum electrolytic capacitor designed for high-speed charge–discharge and demanding power applications. This radial can package delivers 6.8 mF at 350 V with polarized operation and is intended for use in industrial power electronics where voltage fluctuation and regenerative energy are present.

Typical use cases include AC servomotor regenerative circuits, general inverters, voltage-doubler rectifiers and equipment operating in voltage-fluctuating environments. The part combines a high voltage rating, measured ripple-current performance and endurance characteristics for reliable DC-link and smoothing duties.

Key Features

• Capacitance & Voltage — 6.8 mF (6800 µF) rated capacitance with a 350 V nominal rating; capacitance tolerance ±20% at 120 Hz, 20°C.
• Screw-Terminal Radial Can — Robust screw terminal mounting (nominal bolt M5 in series drawings) for secure connections in power assemblies; radial can package simplifies mechanical installation.
• Operating Temperature & Lifetime — Rated for −25°C to +85°C with an endurance specification of 5000 hours at 85°C under D.C. bias plus rated ripple current.
• High-Speed Charge–Discharge — Series-level specification identifies suitability for high-speed charge–discharge applications at 85°C.
• Ripple Current Performance — Specified ripple current 22.9 A at 120 Hz and 32.06 A at 10 kHz, supporting high-frequency and low-frequency ripple handling in power circuits.
• Endurance & Charge–Discharge Durability — Meets endurance criteria after 5000 hours at 85°C and after 20 million charge–discharge cycles (ΔV = rated × 0.3, 3 Hz), with limits on capacitance change, tan δ increase and leakage current.
• Leakage Current & Low-Temperature Stability — Leakage current limit after 5 minutes not more than 3√(V) µA or 5 mA (whichever is smaller); impedance ratio Z(−25°C)/Z(+20°C) = 8 for low-temperature performance.
• Polarized, Marking & Compliance — Polarized capacitor with white printing on a dark brown sleeve; RoHS compliant (2011/65/EU,(EU)2015/863).
• Physical Size — Package dimensions L: 13.0 × D: 7.62 cm with a maximum seated height of 5.118 inch, suitable for cabinet and chassis DC-link placements.

Typical Applications

• AC servomotor regenerative circuits — Energy absorption and smoothing during regenerative braking where high-speed charge–discharge capability is needed.
• General inverters and motor drives — DC-link and ripple smoothing in inverter topologies subject to fluctuating line or load conditions.
• Voltage-doubler rectifier circuits — Bulk capacitance for rectifier stages in designs that use voltage-doubler topologies.
• Equipment in voltage-fluctuating environments — Provides capacitance and endurance for systems exposed to variable supply conditions.

Unique Advantages

• High voltage rating for DC-link use: 350 V nominal rating provides headroom for medium-voltage power systems and rectifier circuits.
• Designed for high-speed cycling: Series-level 85°C high-speed charge–discharge characterization addresses applications with frequent energy reversals.
• Measured ripple capability: Specified ripple currents at both low and high frequencies (120 Hz and 10 kHz) support a range of switching and line-frequency conditions.
• Durability under stress: Endurance and charge–discharge test results (5000 h at 85°C; 20 million cycles at ΔV = 0.3×rated) help ensure long-term stability of capacitance, tan δ and leakage.
• Secure mechanical connection: Screw-terminal design with series-specified bolt sizing simplifies assembly and improves retention in chassis-mounted power modules.
• Regulatory compliance: RoHS compliance supports modern manufacturing and end-product regulatory requirements.

Why Choose LQR2V682MSEHBB?

The LQR2V682MSEHBB positions itself as a practical DC-link and smoothing capacitor for industrial power electronics, combining 6.8 mF at 350 V with screw-terminal reliability and endurance data that address high-frequency regenerative and voltage-fluctuating applications. Its specified ripple currents, low-temperature impedance behavior and charge–discharge endurance make it suitable for designers building inverter drives, servo systems and rectifier stages that require predictable capacitor behavior over time.

This part is suited to engineers and procurement teams seeking a RoHS-compliant, polarized screw-terminal electrolytic capacitor with documented endurance and ripple performance for industrial power designs. The series-level test criteria and physical mounting options provide a clear specification basis for system integration and long-term use.

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