LQR2G272MSEGBN

The LQR2G272MSEGBN is a screw‑terminal aluminum electrolytic capacitor designed for high-voltage DC bus and regenerative power applications. It combines a 400 V rated voltage with 2.7 mF (2700 µF) capacitance in a radial can with M5 screw terminals for robust electrical and mechanical connections.

Engineered for industrial power electronics, this capacitor targets inverter/servo systems, rectifier and voltage‑doubler circuits, and equipment operating in locations with fluctuating voltages. Its combination of high ripple capability, long endurance at elevated temperature, and low ESR provides reliable energy buffering and smoothing in demanding environments.

Key Features

• Capacitance and Voltage — 2.7 mF (2700 µF) rated at 400 V for DC bus and energy storage applications.
• High Ripple Current Capability — 11.5 A low‑frequency ripple current at 120 Hz and 16.1 A high‑frequency ripple current at 10 kHz, enabling effective handling of both mains‑frequency and high‑frequency switching ripple.
• Low ESR — Equivalent series resistance of 150 mΩ (measured at 120 Hz) to minimize loss and heating under ripple load.
• Loss Angle (tan δ) — tan δ = 0.15 (measurement at 120 Hz, 20°C), indicating predictable dissipation characteristics.
• Endurance — 5000 hours at 85°C under rated conditions; capacitors meet specified limits for capacitance change, tan δ and leakage after endurance test.
• Leakage Current — Specified leakage current 3110 µA (measured after 5 minutes at 20°C), providing known standby loss behavior.
• Robust Mechanical Package — Radial can with screw terminals (φ63.5 × 90 mm) and M5 bolts for secure mounting and reliable electrical contact.
• RoHS Compliant — Conforms to RoHS directive requirements.

Typical Applications

• AC Servo and Inverter DC Bus — Energy buffering and smoothing for regeneration and discharge events in servo drives and general inverters.
• Rectifier and Voltage‑Doubler Circuits — Bulk capacitance for rectifier outputs, including applications using voltage doubler topologies.
• Industrial Power Supplies — High‑voltage filtering and ripple handling in industrial converters and power conditioning equipment.
• Equipment in Fluctuating Voltage Environments — Stabilization of DC rails where line voltage varies or transient energy must be absorbed.

Unique Advantages

• High DC Voltage Rating: 400 V rating provides margin for high‑voltage DC bus designs and regenerative systems.
• High Ripple Endurance: Combined low‑ and high‑frequency ripple ratings (11.5 A at 120 Hz, 16.1 A at 10 kHz) support both line‑frequency and switching‑frequency stress.
• Predictable Thermal and Electrical Behavior: 150 mΩ ESR and tan δ = 0.15 give designers quantifiable dissipation and heating characteristics for thermal management planning.
• Long Operational Life: 5000 hours endurance at 85°C provides a durable solution for continuous industrial operation under rated conditions.
• Robust Termination and Mounting: Screw‑terminal construction with M5 bolts and a φ63.5 × 90 mm can enables secure electrical connections and straightforward mechanical installation.
• Regulatory Compliance: RoHS compliance supports environmentally conscious designs and procurement requirements.

Why Choose LQR2G272MSEGBN?

LQR2G272MSEGBN is positioned for engineers needing a high‑voltage, high‑ripple aluminum electrolytic capacitor with proven endurance and measurable electrical characteristics. Its combination of 400 V rating, 2.7 mF capacitance, low ESR, and robust screw‑terminal construction makes it suitable for industrial converters, regenerative drives, and rectifier circuits where reliable energy buffering and ripple mitigation are required.

This part is appropriate for designs that demand clear thermal and electrical parameters for system sizing and long‑term operation. With RoHS compliance and production status, it offers a dependable component choice for production‑scale power electronics applications.

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