LGC2H681MELC55

The LGC2H681MELC55 is a Nichicon LGC series large-can aluminum electrolytic capacitor with snap-in terminals, rated 680 µF at 500 V. It is a long-life, high-voltage snap-in type designed for general-purpose use and for equipment downsizing where a smaller case footprint is required.

Key value comes from its 105°C endurance specification (5000 hours), robust ripple-current handling across low and high frequencies, and RoHS compliance — delivering proven performance for applications that require sustained high-voltage filtering and energy buffering.

Key Features

• Capacitance & Rated Voltage — 680 µF nominal capacitance with a rated voltage of 500 V and tolerance ±20% (120 Hz, 20°C).
• High-temperature Long Life — Endurance specified at 5000 hours at 105°C under rated DC bias plus rated ripple current, with capacitance and leakage requirements defined after test recovery to 20°C.
• Ripple Current Capability — Low-frequency ripple current 2.44 A (120 Hz) and high-frequency ripple current 3.489 A (50 kHz) to support AC ripple and filtering demands across a wide frequency range.
• Leakage and Dissipation — Measured leakage current of 1740 µA; tangent of loss angle (tan δ) up to 0.25 (120 Hz, 20°C) for predictable loss characteristics.
• Compact Snap‑In Package — φ35 × 55 mm can with snap-in radial terminals; tray packing and mass-production availability for repeatable assembly.
• Wide Operating Range & Polarization — Polarized electrolytic capacitor rated for −40°C to +105°C operation and compliant with RoHS (2011/65/EU, (EU)2015/863).

Typical Applications

• General Purpose — Intended for general-purpose applications that require a 500 V, 680 µF snap-in electrolytic capacitor with long-life performance.
• Equipment Downsizing — One-rank smaller case size compared to the LGX series, making it suitable where reduced component footprint is needed.
• High-Temperature Long-Life Systems — Designed for systems operating up to 105°C with 5000-hour endurance under rated conditions.

Unique Advantages

• 500 V rating in a compact can — Provides high-voltage capacitance (680 µF) in a φ35 × 55 mm snap-in package to support high-voltage circuitry without a large footprint.
• Long endurance at elevated temperature — 5000 hours at 105°C assures predictable aging behavior for designs requiring extended high-temperature reliability.
• Broad ripple handling — Specified ripple current values for both low (2.44 A at 120 Hz) and high frequencies (3.489 A at 50 kHz) help in AC filter and smoothing applications across frequency ranges.
• Clear electrical limits — Leakage current and tan δ specifications (1740 µA and 0.25 max at 120 Hz/20°C) provide measurable parameters for margining and thermal design.
• RoHS compliant and production-ready — Compliant with RoHS directives and available in tray packing for volume assembly.

Why Choose LGC2H681MELC55?

The LGC2H681MELC55 positions itself as a compact, long-life snap-in aluminum electrolytic capacitor for engineers who need 500 V capacitance with reliable performance at elevated temperatures. Its combination of a 680 µF value, 105°C/5000-hour endurance, and defined ripple-current capability makes it suitable for designs emphasizing longevity and compactness.

This part is well suited to procurement and design teams looking for a mass-production ready capacitor from the Nichicon LGC series that balances high-voltage capability, measurable leakage and dissipation characteristics, and RoHS compliance for straightforward integration into general-purpose and downsized equipment.

If you would like pricing, availability, or to request a formal quote for LGC2H681MELC55, please submit a quotation request or specification inquiry to our sales desk with your required quantity and delivery schedule.