LNUN7222MTEG

The LNUN7222MTEG is a screw‑terminal aluminum electrolytic capacitor designed for high‑voltage industrial power applications. It delivers 2.2 mF nominal capacitance at a rated DC voltage of 525 V in a compact, radial can with stud/bolt mounting.

Engineered for inverter circuitry and high‑frequency regenerative voltage in AC servomotors and general inverters, the LNUN7222MTEG offers high ripple handling and a 5000‑hour load life at 105 °C for robust performance in demanding power‑electronic environments.

Key Features

• High Voltage & Capacitance — 2.2 mF nominal capacitance rated to DC 525 V, suitable for high‑voltage DC link and energy storage roles.
• Wide Temperature Range & Endurance — Operating range –40 °C to 105 °C with a rated load life of 5000 hours at 105 °C under ripple current.
• High Ripple Current Capability — Handles 9.2 A at 120 Hz and 12.88 A at 10 kHz, supporting both low‑ and high‑frequency ripple environments.
• Stud Bolt Mount & Screw Terminals — Radial can package with screw terminals and stud/bolt mounting for secure electrical and mechanical connections in power assemblies.
• Charge‑Discharge Endurance — Designed to cope with high‑speed charge/discharge loading; datasheet specifies endurance for extensive charge‑discharge cycling.
• Polarized Design & Tolerance — Polarized capacitor with ±20% capacitance tolerance (120 Hz, 20 °C).
• Insulation & Voltage Proof — Insulation resistance greater than 100 MΩ at DC 500 V between terminal and bracket; voltage proof AC 2500 V for 1 minute between terminal and bracket.
• Environmental Compliance — RoHS compliant (2011/65/EU, (EU)2015/863).
• Compact Mechanical Footprint — Physical size L: 13.5 × D: 6.35 cm with stud mounting; height seated max specified for assembly planning.

Typical Applications

• Industrial Inverters — DC link and energy buffering in inverter power supplies where high voltage and sustained ripple handling are required.
• AC Servomotor Drives — High‑frequency regenerative circuits that require capacitors capable of fast charge/discharge and high ripple currents.
• Regenerative Power Electronics — Systems that capture and return energy (regeneration) benefit from the LNUN7222MTEG's high voltage rating and charge‑discharge endurance.

Unique Advantages

• High‑voltage capability: Rated to DC 525 V to support DC link and energy storage needs in high‑voltage power designs.
• Compact alternative to larger series: Smaller sized than comparable LNT series parts while maintaining high voltage performance for tighter layouts.
• Designed for harsh thermal environments: Rated for continuous operation up to 105 °C and a 5000‑hour ripple‑current life at that temperature.
• Broad ripple performance: Specified ripple current at both 120 Hz (9.2 A) and 10 kHz (12.88 A) supports multi‑frequency power systems.
• Robust electrical safety margins: High insulation resistance and AC voltage proof between terminal and bracket simplify insulation design considerations.
• RoHS compliance: Meets applicable RoHS directives for use in regulated markets.

Why Choose LNUN7222MTEG?

The LNUN7222MTEG combines high voltage (DC 525 V), substantial capacitance (2.2 mF), and a compact screw‑terminal radial can to address demanding industrial power electronics where space, thermal endurance, and ripple handling matter. Its 5000‑hour life at 105 °C and charge‑discharge endurance make it well suited for inverter, servo, and regenerative applications that require reliable DC link performance.

This part is a practical choice for engineers specifying capacitors for high‑voltage DC energy storage and ripple suppression in industrial systems, providing verifiable electrical and mechanical characteristics to support robust design and procurement decisions.

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