LNC2H392MTEH

The LNC2H392MTEH is a screw-terminal, polarized aluminum electrolytic capacitor rated at 3.9 mF (3900 µF) and 500 V, designed for industrial power electronics. It targets inverter circuitry and high-frequency regenerative voltage applications such as AC servomotors and general inverters where high ripple-current capability and fast charge–discharge handling are required.

Engineered for robust field performance, the capacitor offers a compact screw-terminal can package with stud/bolt mounting and is specified for a 5000‑hour load life under rated ripple current at 85°C. It is RoHS compliant (2011/65/EU, (EU)2015/863).

Key Features

• Electrolytic construction — Polarized aluminum electrolytic capacitor optimized for power applications requiring large DC capacitance.
• Capacitance & rated voltage — 3.9 mF (3900 µF) at 500 V with ±20% tolerance for bulk energy storage in high-voltage rails.
• High ripple current — Rated ripple current of 19.9 A at 120 Hz and 27.86 A at 100 kHz to support inverter and regenerative loads.
• Temperature and load life — Operates from −40°C to +85°C with a specified load life of 5000 hours at 85°C under rated ripple conditions.
• Package & mounting — Radial can with screw terminals and stud bolt mount; physical size φ76.2 × 120 mm (L: 12 x D: 7.62 cm), HeightSeatedMax 4.724 in for secure chassis installation.
• Reliability and endurance — Leakage current after 5 minutes is limited to 3√(V) µA or 5 mA (whichever is smaller); insulation resistance >100 MΩ at DC 500 V; AC 2500 V proof between terminal and bracket; specified endurance for 50 million charge–discharge cycles (ΔV = 0.3×Vrated, 3 Hz).
• Series-level performance — Part of the LNC series noted for being smaller-sized with higher ripple-current capability compared to LNX/LNK series variants.
• Regulatory compliance — Compliant with RoHS directives (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial inverter power supplies — Bulk DC storage and smoothing in inverter front-ends for motor drives and industrial converters.
• AC servomotor regenerative circuits — Handles high-frequency regenerative voltage and rapid charge–discharge cycles in servo applications.
• High-frequency switching systems — Supports circuits exposed to high ripple current and fast transient loading, benefiting from the capacitor’s high ripple ratings and endurance.

Unique Advantages

• High ripple-current capability: Allows designers to manage significant AC ripple at both low and high switching frequencies, reducing thermal stress on the capacitor.
• Compact screw-terminal package: φ76.2 × 120 mm can with stud mounting provides a robust mechanical and electrical connection for high-current power assemblies.
• Long elevated-temperature life: 5000 hours at 85°C under rated ripple current supports reliable service in industrial environments.
• Charge–discharge endurance: Qualification for 50 million charge–discharge cycles (ΔV = 0.3×Vrated) demonstrates suitability for repetitive regenerative and pulsed-power use cases.
• Verified electrical safety margins: Insulation resistance and voltage-proof test values help ensure safe separation between terminals and bracket in installed systems.
• RoHS compliance: Meets current RoHS standards for environmentally constrained designs.

Why Choose LNC2H392MTEH?

The LNC2H392MTEH is positioned for engineers building inverter-based power systems and regenerative drives who need a high-voltage, high-capacitance solution with strong ripple-current handling and proven endurance. Its screw-terminal can and stud-mount design simplify installation in industrial power racks while providing the electrical robustness demanded by repetitive charge–discharge and regenerative conditions.

For projects that require a combination of 500 V rating, substantial capacitance (3.9 mF), long life at elevated temperature, and explicit ripple-current specifications across frequency, the LNC2H392MTEH delivers verifiable performance and regulatory compliance for industrial deployments.

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