LAR2W181MELA35

The LAR2W181MELA35 is an aluminum electrolytic, snap‑in terminal capacitor designed for high‑voltage, general‑purpose power applications. It provides 180 µF capacitance at a 450 V rating with ±20% tolerance and is specified for continuous operation up to 105°C.

Engineered for durability under thermal and ripple stress, this snap‑in radial can is sized for panel or chassis mounting and offers long endurance—withstanding 2000 hours application of rated ripple current at 105°C—while also incorporating features to reduce short incidence under overvoltage conditions. The part is RoHS compliant.

Key Features

• High Voltage Capability — Rated for 450 V to support high‑voltage DC bus and power conversion circuits.
• Capacitance and Tolerance — 180 µF with ±20% tolerance at 120 Hz, 20°C for predictable energy storage and filtering.
• 105°C Endurance — Specified to withstand 2000 hours of rated ripple current at 105°C, supporting elevated temperature operation.
• Snap‑In Radial Package — Snap‑in terminal, radial can package (L: 3.5 × D: 2.5 cm) for secure mounting and straightforward assembly into power racks or chassis.
• Ripple Current Performance — 870 mA at 120 Hz and 1.244 A at 50 kHz frequency data points for reliable AC ripple handling in power circuits.
• Leakage Current Specification — Leakage current meets I ≤ 3√(C·V) µA after 5 minutes at 20°C, enabling predictable leakage behavior for design margin calculations.
• Permissible Overvoltage Safety — Designed to reduce short incidence when subjected to 1.5× rated voltage; safety testing shows more than 60% passing under the specified overvoltage condition (limited current = 1 A).
• Regulatory Compliance — Compliant to the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• High‑Voltage Power Supplies — Bulk energy storage and smoothing for high‑voltage DC rails where 450 V capability is required.
• Power Conversion Systems — DC bus filtering and ripple suppression in inverters, converters and industrial power electronics operating up to 105°C.
• Industrial Equipment — General‑purpose use in chassis‑mounted or panel assemblies that require snap‑in mounting and robust high‑temperature endurance.

Unique Advantages

• High‑temperature reliability: Rated endurance of 2000 hours at 105°C under rated ripple current, helping designs tolerate elevated ambient temperatures.
• Clear ripple specifications: Published ripple current values at 120 Hz and 50 kHz allow accurate thermal and lifetime budgeting in power designs.
• Safety‑focused design: Permissible overvoltage behavior and reduced short incidence under 1.5× rated voltage improve overall system fault tolerance.
• Simplified mechanical integration: Snap‑in radial can form factor provides secure mounting for chassis or panel installations without complex hardware.
• Predictable leakage behavior: Leakage current defined by I ≤ 3√(C·V) µA after 5 minutes supports reliable power loss and standby current calculations.
• RoHS compliant: Meets RoHS directives for use in regulated markets and environmentally conscious designs.

Why Choose LAR2W181MELA35?

The LAR2W181MELA35 combines high voltage capability (450 V) with substantial capacitance (180 µF) in a snap‑in aluminum electrolytic package engineered for prolonged operation at elevated temperatures. Its endurance rating (2000 hours at 105°C under rated ripple) and defined ripple/ leakage characteristics make it well suited to power conversion and industrial applications where thermal and electrical stress are design drivers.

This capacitor is a fit for engineers and procurement teams specifying robust, general‑purpose components for high‑voltage DC systems. With built‑in safety considerations for overvoltage events and RoHS compliance, it offers a balanced combination of performance, reliability, and regulatory conformance for long‑running power electronics designs.

Request a quote or contact the sales team to discuss availability, lead times, and volume pricing for the LAR2W181MELA35.