LGX2D681MELZ40

The LGX2D681MELZ40 is a snap‑in terminal aluminum electrolytic capacitor from Nichicon's LGX series. It delivers 680 µF capacitance at a 200 V rating in a compact φ22 × 40 mm can, targeting general-purpose power electronics and DC link/rectifier applications.

Designed for long life at elevated temperature, this part supports demanding ripple conditions while maintaining low leakage and predictable dissipation characteristics, making it suitable for switching power supplies and inverter rectifier circuits.

Key Features

• Capacitance and tolerance — 680 µF with ±20% tolerance (measured at 120 Hz, 20°C), providing stable bulk capacitance for power‑supply smoothing and energy storage.
• Rated voltage — 200 V DC rating for higher‑voltage power rails and rectifier circuits.
• High ripple current capability — Rated low‑frequency ripple current 1.73 A at 120 Hz and high‑frequency ripple current 2.595 A at 50 kHz, enabling reliable handling of both mains and switching ripple.
• Long endurance at 105°C — Specified 5000 hours life at 105°C when subjected to DC bias plus rated ripple current, for extended reliability in elevated‑temperature environments.
• Controlled dissipation factor — tan δ (DF) max 0.15 measured at 20°C, 120 Hz, for predictable ESR behavior in filter and smoothing applications.
• Low leakage — Leakage current 1,100 µA (per product specification), supporting efficient power designs.
• Snap‑in radial can package — φ22 × 40 mm snap‑in can with tray packing; secure mount for through‑hole board assemblies and easy handling in production.
• Operating range and compliance — Rated for −25°C to +105°C and RoHS‑compliant.

Typical Applications

• Inverter rectifier circuits — Bulk smoothing and ripple absorption on the DC side of general inverters, benefitting from the 200 V rating and high ripple capacity.
• Switching power supplies — DC link and output smoothing where long life at elevated temperature and controlled dissipation are required.
• Industrial power electronics — Energy storage and filtering in industrial supplies and control equipment exposed to higher operating temperatures.
• General purpose power filtering — Use as a compact, high‑voltage electrolytic for decoupling and bulk capacitance in a variety of power designs.

Unique Advantages

• Validated high‑temperature endurance: 5000 hours at 105°C under rated ripple and DC bias provides predictable long‑term performance for thermal‑challenging installations.
• Robust ripple handling: Combined low‑ and high‑frequency ripple ratings (1.73 A at 120 Hz, 2.595 A at 50 kHz) allow the capacitor to address both mains and switching noise without compromising lifetime.
• Compact snap‑in form factor: φ22 × 40 mm radial can with snap‑in terminals offers a secure board mount and space‑efficient solution for through‑hole assemblies.
• Stable electrical characteristics: Low tan δ (0.15 at 20°C, 120 Hz) and defined tolerance help ensure consistent ESR/impedance behavior across production runs.
• Low leakage current: 1,100 µA leakage supports efficient power conversion and helps minimize standby losses in DC systems.
• RoHS compliant and production ready: Mass production status and RoHS compliance simplify procurement and regulatory alignment.

Why Choose LGX2D681MELZ40?

LGX2D681MELZ40 is positioned for designers who need a reliable, long‑life aluminum electrolytic for mid‑voltage power systems. Its combination of 200 V rating, 680 µF capacitance, high ripple capability, and 5000‑hour endurance at 105°C makes it well suited to inverter rectifiers, switching power supplies, and industrial power filtering where thermal stress and ripple are primary concerns.

The snap‑in radial can balances a compact footprint with secure mechanical mounting for through‑hole PCBs, while controlled electrical parameters (tan δ, leakage, tolerance) provide predictable behavior across production and field use. Available in tray packing and in mass production, this capacitive solution supports both prototype and volume manufacturing needs.

Request a quote or submit an inquiry for pricing and lead‑time information on the LGX2D681MELZ40 to evaluate it for your next power electronics design.