LGR2G181MELB35

The LGR2G181MELB35 is an aluminum electrolytic capacitor in a snap‑in can package offering 180 µF capacitance at a 400 V rating. It is part of Nichicon’s LGR long‑life assurance series and is designed for general purpose applications that require high voltage handling and extended high‑temperature endurance.

Built to withstand elevated operating conditions, this capacitor delivers specified performance up to 105°C with a 10,000‑hour endurance rating, and it is RoHS compliant for regulatory compatibility.

Key Features

• Capacitance and Voltage — 180 µF nominal capacitance with a 400 V rated voltage, suitable for high‑voltage smoothing and energy storage in general purpose designs.
• Long‑life Assurance — Endurance specified for 10,000 hours at 105°C under rated ripple and DC bias, with capacitance change within ±25% after the endurance test.
• High Temperature Range — Rated for operation from –25°C to 105°C, supporting applications that require elevated ambient temperature tolerance.
• Snap‑in Mounting — Radial can with snap‑in terminals for secure board installation and mechanical stability in through‑hole assemblies.
• Ripple Current Capability — Rated ripple current of 900 mA at 120 Hz and 1.287 A at 50 kHz, supporting AC ripple handling across common power frequencies.
• Polarized Electrolytic — Polarized device with ±20% capacitance tolerance at 120 Hz, 20°C.
• RoHS Compliant — Meets RoHS directive requirements as indicated by manufacturer documentation.
• Compact Can Dimensions — Physical size approximately L: 3.5 cm × D: 3.0 cm, provided in a radial, snap‑in can package for space‑efficient board layouts.

Typical Applications

• General Purpose Power Electronics — Provides smoothing and energy storage in power supplies and converters where 400 V ratings and long‑life performance are required.
• Industrial Equipment — Suited for industrial systems that operate at elevated temperatures and require capacitors with extended endurance.
• High‑Voltage Power Filtering — Used for bulk filtering and ripple suppression in high‑voltage circuits that demand stable capacitance over time.

Unique Advantages

• Extended Endurance: 10,000‑hour rating at 105°C provides predictable long‑term performance under sustained high‑temperature ripple conditions.
• High Voltage Handling: 400 V rating enables use in higher‑voltage power rails without needing multiple components in series.
• Effective Ripple Management: Specified ripple current values at 120 Hz and 50 kHz support reliable ripple suppression across a range of operating frequencies.
• Secure Snap‑in Mounting: Snap‑in radial can terminals offer robust mechanical fixation for through‑hole assemblies and ease of PCB integration.
• Regulatory Compatibility: RoHS compliance supports deployments where restricted‑substance conformity is required.
• Predictable Tolerance: ±20% capacitance tolerance at 120 Hz and 20°C gives clear expectations for design margining and BOM planning.

Why Choose LGR2G181MELB35?

The LGR2G181MELB35 positions itself as a high‑voltage, long‑life aluminum electrolytic solution for general purpose designs that require sustained performance at elevated temperatures. Its combination of 180 µF capacitance, 400 V rating, and a 10,000‑hour endurance at 105°C makes it suitable for power electronics and industrial applications where predictable aging and ripple handling are important design criteria.

Engineers specifying this part benefit from a clear set of electrical and environmental specifications—polarized operation, defined ripple current ratings, RoHS compliance, and a compact snap‑in radial can package—supporting reliable integration and lifecycle planning in production systems.

Request a quote or contact sales to discuss availability, lead times, and how LGR2G181MELB35 can meet your high‑voltage, long‑life design requirements.