LAK2D181MELZ25ZB

The LAK2D181MELZ25ZB is a snap-in terminal aluminum electrolytic capacitor rated at 200 V with 180 µF capacitance. It is a radial, can-style snap-in component designed for general-purpose power and industrial applications where robust high-voltage filtering and energy smoothing are required.

Built for elevated-temperature operation and voltage-fluctuating environments, the LAK series provides extended voltage capability and safety features for abnormal over-voltage conditions while meeting RoHS (2011/65/EU, (EU)2015/863) requirements.

Key Features

• Rated Capacitance and Voltage: 180 µF at 200 V nominal with ±20% tolerance, suitable for bulk filtering and decoupling in higher-voltage circuits.
• High-temperature Endurance: Designed to withstand 2000 hours application of rated ripple current at 105°C, with capacitance change within ±20% after the endurance test.
• Ripple Current Performance: Specified ripple current of 700 mA at 120 Hz and 840 mA at 10 kHz, enabling effective AC ripple handling across common power frequencies.
• Safety and Over-voltage Behavior: Improved safety features for abnormally excessive voltage; pressure relief vent designed to operate without flames, ignitions, or dangerous dispersion of parts.
• Electrical Characteristics: Leakage current specified as I ≤ 3√CV (µA) after 5 minutes at 20°C; tan δ 0.20 max at 120 Hz, 20°C.
• Package & Mounting: Radial, can-style snap-in package with nominal dimensions φ22 × 25 mm (D × L) and polarized configuration for secure PCB insertion and mechanical stability.
• Operating Range & Compliance: Rated for -25°C to +105°C operation and compliant with RoHS directives (2011/65/EU, (EU)2015/863).

Typical Applications

• Voltage-fluctuating industrial equipment: Provides stable filtering and energy buffering where supply voltage varies, leveraging the series’ suitability for fluctuating-voltage environments.
• High-voltage power supplies: Bulk smoothing and ripple suppression in 200 V-class power supply stages using snap-in mounting for secure board installation.
• General-purpose power electronics: Use in assemblies requiring robust high-temperature endurance and reliable leakage/tan δ characteristics.

Unique Advantages

• Long-duration thermal reliability: 2000-hour rated ripple current endurance at 105°C reduces the need for frequent replacements in high-temperature deployments.
• Designed for higher-voltage systems: 200 V rating with a 180 µF capacitance provides substantial energy storage for mid-to-high-voltage DC rails.
• Measurable ripple capability: Clear ripple current specs at both low and high frequencies (700 mA at 120 Hz, 840 mA at 10 kHz) allow predictable thermal and performance planning.
• Safety-focused construction: Pressure relief vent and enhanced over-voltage behavior reduce risks under abnormal voltage stress.
• RoHS compliance: Conforms to applicable RoHS directives for easier integration into modern regulatory-compliant designs.

Why Choose LAK2D181MELZ25ZB?

LAK2D181MELZ25ZB positions itself as a reliable, high-voltage snap-in electrolytic solution for designers who need predictable ripple handling and long-term performance at elevated temperatures. Its combination of 200 V rating, 180 µF capacitance, and 2000-hour endurance at 105°C makes it a fit for equipment operating in demanding thermal and voltage-fluctuating environments.

This part is well suited to engineers and procurement teams specifying durable radial snap-in capacitors for power conversion, industrial power systems, and other general-purpose high-voltage applications where safety features and RoHS compliance are required.

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