LAQ2D681MELA40ZB

The LAQ2D681MELA40ZB is an aluminum electrolytic, snap-in terminal capacitor from Nichicon's LAQ series. It provides 680 µF capacitance at a 200 V rating in a radial snap-in can (φ25 × 40 mm), designed for general-purpose power applications where high voltage capability and robust ripple handling are required.

Designed for mass production with tray packing, this part delivers specified ripple current performance at both low and high frequencies, controlled leakage current, and 2 000 hours of endurance at 105°C for reliable long-term operation in demanding temperature environments.

Key Features

• Capacitance & Voltage — 680 µF nominal capacitance with a 200 V rated voltage and ±20% tolerance, suitable for medium‑voltage reservoir and filtering duties.
• Snap-in Radial Package — Snap-in terminal, radial can package (φ25 × 40 mm) for secure board mounting and efficient assembly in mass-production environments.
• High Ripple Handling — Rated ripple current of 1.75 A at 120 Hz and 2.1 A at 10 kHz to support AC ripple smoothing across a range of switching frequencies.
• Controlled Leakage — Specified leakage current of 1 100 µA to help maintain predictable bias and discharge behavior after voltage application.
• Wide Operating Temperature — Rated for operation from −25°C to +105°C to cover a broad range of ambient conditions.
• Endurance and Reliability — 2 000 hours life at 105°C under rated voltage and ripple stress; after endurance testing, capacitance change remains within ±20% and leakage current remains at or below initial specified values.
• Safety Vent — Pressure relief vent designed to operate under abnormal conditions without generating flames or hazardous case dispersion.

Typical Applications

• General-purpose power filtering — Bulk smoothing and decoupling on 200 V rails where 680 µF capacitance and controlled ripple handling are required.
• High-voltage power rails — Energy storage or reservoir capacitance for circuits operating at or near 200 V.
• High-frequency ripple suppression — Supports switching supplies and converters by delivering 2.1 A ripple current capability at 10 kHz.
• Mass-production assemblies — Tray-packed snap-in format suitable for high-volume manufacturing and automated assembly processes.

Unique Advantages

• 200 V rating with substantial capacitance — Enables consolidation of bulk capacitance on medium-voltage rails while preserving board space with a compact φ25 × 40 mm can.
• Dual-frequency ripple performance — Specified ripple current at both 120 Hz and 10 kHz supports designs that span line-frequency and switching-frequency ripple conditions.
• Endurance at elevated temperature — 2 000 hours rated life at 105°C provides predictable aging and performance retention in thermally demanding environments.
• Predictable leakage behavior — Specified leakage current figure aids in power budgeting and bias stability after voltage application.
• Snap-in mounting for robust assembly — Radial, snap-in terminals deliver mechanical stability and simplified board insertion for production builds.
• Built-in safety venting — Pressure relief mechanism reduces the risk of hazardous failure modes under abnormal conditions.

Why Choose LAQ2D681MELA40ZB?

The LAQ2D681MELA40ZB balances medium‑voltage capability and large capacitance in a compact, snap‑in aluminum electrolytic package from Nichicon's LAQ series. Its dual-frequency ripple specifications, controlled leakage current, and 2 000‑hour endurance at 105°C make it a practical choice for general‑purpose power systems and high-volume assemblies that require predictable long-term performance.

This part is suited for engineers and procurement teams specifying capacitors for 200 V rails where a dependable bulk capacitor with snap‑in mounting and tray packing for mass production is required. The combination of electrical specifications and mechanical form factor supports reliable integration into existing designs and manufacturing flows.

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