LAS2W680MELZ25ZB

The LAS2W680MELZ25ZB is a snap‑in terminal aluminum electrolytic capacitor in Nichicon’s LAS series, specified at 68 µF and 450 V. It is designed for general‑purpose power applications where compact high‑voltage capacitance, extended ripple endurance and improved safety under abnormal voltage conditions are required.

Key engineering attributes include a snap‑in radial can package (φ22 × 25 mm), rated operation from −25 °C to +105 °C, 2000 hours endurance with rated ripple current at 105 °C, and RoHS compliance. The LAS series provides smaller case sizes and higher ripple current capability compared with the LAQ series, making it suitable for equipment exposed to fluctuating voltages.

Key Features

• Capacitance & Voltage: 68 µF nominal capacitance at a rated voltage of 450 V with ±20% tolerance.
• Thermal range & Endurance: Operating temperature −25 °C to +105 °C; endurance specified as 2000 hours when D.C. bias plus rated ripple current is applied at 105 °C.
• Ripple current capability: Rated ripple currents of 600 mA at 120 Hz and 690 mA at 10 kHz; series frequency coefficients: 50 Hz = 0.88, 60 Hz = 0.90, 120 Hz = 1.00, 1 kHz = 1.10, 10 kHz+ = 1.15.
• Package & Mounting: Snap‑in radial can package, dimensional footprint L: 2.5 × D: 2.2 cm for board‑level snap‑in mounting.
• Leakage & dissipation: Leakage current per datasheet: I ≤ 3√C (µA) after 5 minutes’ application of rated voltage at 20 °C; tangent of loss angle (tan δ) ≤ 0.20 at 120 Hz, 20 °C.
• Low‑temperature stability: Impedance ratio Z(−25 °C)/Z(+20 °C) maximum of 8, supporting performance at lower ambient temperatures.
• Safety features: Improved safety design for abnormally excessive voltage; pressure relief vent operation is specified to prevent dangerous conditions under fault scenarios.
• Regulatory compliance: RoHS directive compliant (2011/65/EU, (EU)2015/863).

Typical Applications

• Power supplies: Smoothing and bulk filtering in high‑voltage DC link and power conversion stages where stable capacitance at 450 V is required.
• Industrial equipment: Use in machinery and control systems that experience fluctuating line voltages and require capacitors with extended ripple endurance.
• Commercial power electronics: Filtering and energy‑storage roles in equipment exposed to variable mains conditions or frequent voltage swings.

Unique Advantages

• High ripple endurance: Rated for 2000 hours of rated ripple current at 105 °C, enabling longer service life in demanding thermal and ripple environments.
• Compact snap‑in package: Smaller case size (φ22 × 25 mm) with snap‑in terminals for secure board mounting while conserving PCB area.
• Enhanced safety under abnormal voltage: Designed with improved safety features and a pressure relief vent to reduce risk if exposed to excessive voltage.
• Predictable frequency behavior: Published frequency coefficients allow designers to scale rated ripple current across 50 Hz to 10 kHz and above.
• Wide operating temperature: Rated operation from −25 °C to +105 °C supports use across varied environmental conditions.
• RoHS compliance: Meets RoHS directive requirements for environmentally restricted substances.

Why Choose LAS2W680MELZ25ZB?

The LAS2W680MELZ25ZB positions itself as a reliable, compact high‑voltage electrolytic solution for designs that demand 450 V capacitance with extended ripple endurance and enhanced safety behavior. Its snap‑in radial can and smaller case size make it suitable for equipment where board space and robust mounting matter.

This part is especially appropriate for engineers designing power supplies, industrial controls and commercial power electronics that operate under fluctuating voltages and require predictable performance across frequency and temperature. The LAS series specification—covering endurance, leakage, dissipation factor and safety—helps provide long‑term, verifiable performance in those applications.

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