LASW6151MELZ40ZB

The LASW6151MELZ40ZB is a snap-in terminal aluminum electrolytic capacitor offering 150 µF capacitance at a 420 V rated voltage in a compact φ22 × 40 mm can. Designed for general-purpose high-voltage applications, it provides high-temperature endurance and robust ripple-current capability for equipment operating in environments with fluctuating voltages.

As part of the Nichicon LAS series, this capacitor combines snap-in mounting for secure panel/board retention with series-level safety design features and RoHS compliance for use in industrial and power-electronics systems.

Key Features

• Capacitance and Voltage: 150 µF nominal capacitance with a 420 V rated voltage, suitable for high-voltage DC filtering and energy-storage roles.
• Snap-in Terminal Package: Radial, can-style snap-in mounting provides secure mechanical retention for power assemblies and simplified installation in power supplies and industrial modules.
• High-Temperature Endurance: Rated operating temperature range −25 °C to +105 °C with an endurance specification of 2000 hours at 105 °C under DC bias plus rated ripple current.
• Loss Characteristics: Tangent of loss angle (tan δ) of 0.20 maximum at 120 Hz and 20 °C, supporting predictable dissipation characteristics in AC superposition conditions.
• Ripple Current Capability: Rated ripple currents of 820 mA at 120 Hz and 943 mA at 10 kHz, with published frequency coefficients that raise the allowable ripple at higher frequencies.
• Safety Feature: Pressure relief vent design for controlled operation under abnormal over-voltage conditions as specified by the LAS series safety performance.
• Size: Compact form factor with dimensions approximately 22 mm diameter by 40 mm length (L: 4.0 cm × D: 2.2 cm), enabling space-efficient high-voltage designs.
• RoHS Compliance: Conforms to RoHS directive (2011/65/EU, (EU)2015/863), suitable for regulated supply-chain requirements.

Typical Applications

• Power Supplies: High-voltage DC filtering and bulk smoothing in switch-mode and linear power supplies where reliable ripple handling is required.
• Industrial Power Equipment: Energy buffering and decoupling in equipment exposed to voltage fluctuations, leveraging the part’s endurance at elevated temperatures.
• General-Purpose High-Voltage Filtering: Use in circuits needing compact capacitive storage at 420 V for noise reduction and transient suppression.

Unique Advantages

• High-Voltage Energy Storage: 150 µF at 420 V provides substantial capacitance for high-voltage DC applications without large footprint increases.
• Durable Under High Temperature: 2000-hour rated lifetime at 105 °C supports long-term stability in demanding thermal environments.
• Robust Ripple Performance: Specified ripple current at both low and high frequencies (820 mA at 120 Hz, 943 mA at 10 kHz) and frequency coefficients to maximize allowable ripple at higher frequencies.
• Secure Mounting: Snap-in radial can package simplifies assembly and improves mechanical integrity in power modules and chassis-mounted systems.
• Series-Level Safety Design: Pressure relief venting and abnormal-voltage safeguards reduce risk of hazardous failure modes under over-voltage conditions.
• Regulatory Compliance: RoHS conformity helps meet environmental restrictions for commercial and industrial product lines.

Why Choose LASW6151MELZ40ZB?

LASW6151MELZ40ZB positions itself as a practical, compact solution for designers needing reliable high-voltage capacitance with strong thermal endurance and ripple handling. Its snap-in can package and series-level safety features make it well suited to industrial power supplies and equipment operating in voltage-fluctuating environments.

This capacitor is ideal for engineers specifying components for robust, long-life power-electronics systems where predictable endurance at up to 105 °C, RoHS compliance, and high-voltage performance are required.

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