LGR2W271MELC45

The LGR2W271MELC45 is a Nichicon LGR series aluminum electrolytic capacitor in a snap‑in radial can designed for general‑purpose, high‑voltage applications. It combines a 270 µF capacitance with a 450 V rated voltage and a polarized snap‑in mounting for secure PCB installation.

Engineered for long life at elevated temperatures, this capacitor offers 10,000 hours endurance at 105°C, RoHS compliance, and ripple current capability across low and high frequencies—making it suitable for power systems that require robust DC smoothing and energy buffering.

Key Features

• Capacitance & Rated Voltage — 270 µF nominal capacitance rated at 450 V with a tolerance of ±20%.
• High‑temperature Long Life — Endurance specified at 10,000 hours at 105°C with defined limits for capacitance change (within ±25%), tan δ, and leakage current after the endurance test.
• Operating Temperature Range — −25°C to +105°C suitable for high‑voltage applications within the specified category temperature range.
• Ripple Current Performance — Rated ripple current figures include 1.19 A at 120 Hz and 1.702 A at 50 kHz, with frequency coefficients provided for additional frequency points in the LGR series data.
• Snap‑In Radial Can Package — Snap‑in terminal type in a radial can, designed for secure mounting; physical size L: 4.5 × D: 3.5 cm and a maximum seated height of 1.772 inch.
• Electrical Reliability Parameters — Polarized type with leakage current specified as I ≤ 3√CV (µA) after 5 minutes at 20°C; tan δ maximum of 0.20 for the 450 V rating.
• Compliance & Series — RoHS compliant and part of the Nichicon LGR long‑life assurance series; other terminations are available upon request.

Typical Applications

• Industrial power supplies — Bulk smoothing and filtering in high‑voltage general‑purpose power supplies that require 450 V working voltage and extended operating life.
• DC‑link and power conversion — Energy buffering and decoupling in converter circuits where 270 µF at 450 V and robust ripple handling are needed.
• Energy systems and power conditioning — Use in mains‑level DC circuits and power conditioning modules where long‑term stability at 105°C is important.

Unique Advantages

• Long life at elevated temperature: Specified 10,000 hours at 105°C reduces replacement intervals in continuous‑duty applications.
• High voltage capability: 450 V rating supports mains‑level and high‑voltage DC designs without series stacking.
• Broad ripple performance: Documented ripple current values at 120 Hz and 50 kHz plus frequency coefficients for the series help predict performance across common power frequencies.
• Secure, serviceable mounting: Snap‑in radial can package provides reliable PCB retention for high‑vibration or high‑current assemblies.
• Standards‑oriented electrical limits: Clear leakage, tan δ and impedance behavior are specified, enabling predictable design margins and endurance planning.
• RoHS compliant: Meets RoHS requirements for restricted substances.

Why Choose LGR2W271MELC45?

The LGR2W271MELC45 positions itself as a reliable, high‑voltage aluminum electrolytic solution for designers who need 270 µF at 450 V with verified long‑term performance at elevated temperatures. Its endurance specification, documented ripple capabilities, and clear electrical limits make it a practical choice for general‑purpose power electronics, DC‑link circuits, and energy buffering applications.

As part of Nichicon’s LGR series, this snap‑in radial can capacitor offers a combination of form factor, long life, and compliance characteristics that help engineers balance performance and maintainability in medium‑ and high‑voltage designs. Other termination options are available upon request for design flexibility.

Request a quote or submit an inquiry for pricing and availability of the LGR2W271MELC45 to receive lead‑time and volume information.