LHT2W681MELC60

The LHT2W681MELC60 is an aluminum electrolytic capacitor in a snap-in, radial can package, rated 450V and 680µF with ±20% tolerance. It is designed for general-purpose applications that require high-voltage bulk capacitance and wide operating temperature capability.

Key performance attributes include operation from −40°C to +125°C, a rated ripple current of 2430 mArms at 120 Hz (125°C), and a 3000-hour endurance at 125°C, delivering stable electrical performance in high-temperature environments while meeting RoHS requirements.

Key Features

• Electrical Capacity: 680 µF nominal capacitance with ±20% tolerance at 120 Hz, 20°C for bulk energy storage and decoupling.
• High Voltage Rating: 450 V rated voltage for high-voltage power systems and DC bus applications.
• Wide Temperature Range: Specified operation from −40°C to +125°C to support elevated-temperature equipment requirements.
• High Ripple Handling: Rated ripple current 2430 mArms at 120 Hz (125°C); frequency ripple coefficients allow up to 3.475 A at 50 kHz per datasheet frequency scaling.
• Low Dissipation Factor: Tangent of loss angle (tan δ) 0.20 max at 120 Hz, 20°C for predictable AC performance.
• Leakage and Endurance: Maximum leakage current 1.65 mA and endurance of 3000 hours at 125°C under DC bias plus rated ripple current.
• Package & Mounting: Snap-in terminal, radial can format sized 35 mm diameter × 60 mm length for secure PCB mounting and high-current board-level connections.
• RoHS Compliant: Conforms to RoHS Directive (2011/65/EU, (EU)2015/863).

Typical Applications

• General-purpose power filtering: Bulk energy storage and smoothing in high-voltage power supplies where a 450 V, 680 µF polarized capacitor is required.
• High-temperature equipment: Systems that operate at elevated ambient temperatures benefit from the −40°C to +125°C rating and 3000-hour endurance at 125°C.
• High-ripple power modules: Power conversion and rectifier circuits that demand substantial ripple handling, leveraging the 2430 mArms (120 Hz) rating and higher-frequency ripple coefficients.

Unique Advantages

• High-voltage capability: 450 V rating enables use on higher-voltage DC busses without derating.
• Temperature robustness: −40°C to +125°C range and 3000-hour endurance at 125°C support long-term operation in hot environments.
• Strong ripple performance: Rated ripple current and frequency coefficients support both low- and high-frequency ripple conditions.
• Board-level secure mounting: Snap-in terminals provide reliable mechanical and electrical connection for heavy-current applications.
• Predictable AC characteristics: Specified tan δ and leakage current provide measurable parameters for design verification and reliability planning.
• Regulatory compliance: RoHS conformity simplifies environmental compliance for product designs.

Why Choose LHT2W681MELC60?

The LHT2W681MELC60 combines high-voltage capacitance, substantial ripple-handling capability, and wide temperature endurance in a snap-in radial can package. It is well suited for designs that need a durable, high-capacitance polarized capacitor operating up to 125°C with defined leakage and dissipation characteristics.

This part is appropriate for engineers specifying capacitors for high-voltage power circuits, high-temperature equipment, or any general-purpose application where documented ripple, tan δ, and long-term endurance are required. Its RoHS compliance and clear datasheet parameters aid in design verification and lifecycle planning.

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