LAR2W151MELB25

The LAR2W151MELB25 is a Nichicon LAR series aluminum electrolytic capacitor in a snap-in radial can package. It delivers 150µF nominal capacitance at a 450V rating, polarized, and is designed for general-purpose electronic equipment where high-voltage electrolytic capacitance and robust ripple handling are required.

Key value comes from its high-temperature endurance and safety-focused design: the part withstands 2000 hours of rated ripple current at 105°C and incorporates performance characteristics that reduce short incidence under overvoltage conditions. The device is RoHS compliant.

Key Features

• Capacitance & Voltage — 150µF nominal capacitance at a rated voltage of 450V, ±20% tolerance (120Hz, 20°C).
• Snap-in Radial Can Package — Snap-in terminal type in a radial can configuration for secure mechanical mounting and through-hole PCB assembly.
• High-Temperature Endurance — Specified to withstand 2000 hours of DC bias plus rated ripple current at 105°C; capacitance change within ±20% and leakage current remains within initial limits after endurance testing.
• Ripple Current Performance — Rated ripple current: 790 mA at 120Hz (low frequency) and 1.13 A at 50 kHz (high frequency); frequency coefficients for ripple current are provided in the LAR series datasheet.
• Overvoltage Safety Behavior — Designed to reduce incidence of short when exposed to 1.5× rated voltage (limited current = 1A); safety test shows more than 60% passing under defined conditions (pressure relief vent operates normally or does not open for 10 minutes without short and flame).
• Leakage Current Specification — Leakage current after 5 minutes at 20°C follows I ≤ 3√(C·V) µA (where C is µF and V is volts), per the datasheet.
• Low-Temperature and Loss Characteristics — Tangent of loss angle (tan δ) max of 0.20 at 450V (measured at 120Hz, 20°C); impedance increases at low temperatures are specified (e.g., Z(-25°C)/Z(+20°C) up to 8 for 400–450V range).
• Operating Range & Compliance — Polarized capacitor with operating temperature range of −25°C to +105°C and RoHS compliance (2011/65/EU, (EU)2015/863).

Typical Applications

• General-purpose power filtering — Used where a high-voltage electrolytic capacitor is required to handle rated ripple currents at elevated temperatures.
• Industrial and commercial electronics — Suitable for general-purpose circuits in equipment that require polarized high-voltage capacitance with proven endurance characteristics.
• High-voltage smoothing and decoupling — Applies in circuits that need stable capacitance and leakage specifications under DC bias and ripple conditions up to the rated voltage.

Unique Advantages

• High-temperature endurance: 2000-hour rating at 105°C under rated ripple current supports long-term operation in thermally demanding environments.
• Overvoltage safety behavior: Reduced short incidence under 1.5× rated voltage (limited current) enhances circuit-level safety and reliability.
• Clear ripple current data: Defined ripple current values at 120Hz and 50kHz let designers size the component confidently for filtering and smoothing tasks.
• Measurable leakage limits: Leakage current bound by I ≤ 3√(CV) µA provides predictable behavior after voltage application and during end-of-life evaluations.
• RoHS compliant: Conforms to applicable RoHS directives for environmental and regulatory compliance.

Why Choose LAR2W151MELB25?

The LAR2W151MELB25 combines high-voltage capability (450V) with a 150µF capacitance in a robust snap-in radial can, making it a practical choice for general-purpose high-voltage circuits that require clear ripple and endurance specifications. Its 2000-hour endurance at 105°C and documented overvoltage safety behavior provide engineers with verifiable performance metrics for reliability planning.

This part is suited to designers and purchasers who need a proven electrolytic solution with specified ripple handling, leakage limits, and low-temperature impedance data — backed by Nichicon's LAR series specifications and RoHS compliance.

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