LAR2W151MELZ40

The LAR2W151MELZ40 is a snap‑in terminal aluminum electrolytic capacitor in a radial can package, rated 450 V with 150 µF capacitance and ±20% tolerance. It is designed for general‑purpose high‑voltage applications that require a compact, high‑voltage smoothing or filtering capacitor with robust thermal and ripple endurance.

Key value propositions include a 105°C temperature rating with 2000 hours endurance under rated ripple current, a snap‑in mounting format for secure board retention, and safety‑focused construction that reduces the incidence of shorting under overvoltage conditions. The part is RoHS compliant.

Key Features

• High Voltage & Capacitance — 450 V rated voltage with 150 µF capacitance for high‑voltage smoothing and energy storage in compact form (φ22 × 40 mm; L: 4.0 cm × D: 2.2 cm).
• Snap‑In Radial Can Package — Snap‑in terminal type provides secure, rugged board mounting in power assemblies and panelized PCBs.
• High‑Temperature Endurance — Withstands 2000 hours application of rated ripple current at 105°C, supporting sustained operation in elevated ambient temperatures.
• Ripple Current Performance — Specified ripple current of 790 mA at 120 Hz and 1.13 A at 50 kHz; frequency coefficients for the 400/450 V group include 50 Hz: 0.77, 60 Hz: 0.82, 120 Hz: 1.00 and ≥50 kHz: 1.43.
• Safety‑Oriented Overvoltage Behavior — Designed to reduce short incidence when subjected to overvoltage (rated voltage × 1.5); safety performance testing shows a majority of parts pass defined overvoltage conditions without short or flame.
• Electrical Stability & Loss — Leakage current specified as I ≤ 3√CV (µA) after 5 minutes at 20°C; tangent of loss angle (tan δ) maximum 0.20 at the 450 V rating (measured at 120 Hz, 20°C).
• Temperature Range — Rated for operation from −25°C to +105°C for the 400/450 V variants in the series.
• RoHS Compliant — Meets RoHS directive requirements (2011/65/EU,(EU)2015/863).

Typical Applications

• High‑voltage power supplies — Bulk filtering and smoothing where a 450 V working voltage and 150 µF capacitance are required.
• DC link and energy storage — Local energy buffering and decoupling in power conversion circuits benefiting from high ripple endurance at 105°C.
• Industrial power electronics — Use in general‑purpose industrial converters and power modules that require secure snap‑in mounting and elevated temperature operation.

Unique Advantages

• Proven high‑temperature endurance: 2000 hours at 105°C under rated ripple current improves reliability in thermally demanding applications.
• Measured ripple capability across frequencies: Specified ripple currents and frequency coefficients allow designers to compute effective ripple handling at common switching and mains frequencies.
• Reduced short incidence under overvoltage: Design and safety testing reduce the likelihood of shorting when exposed to 1.5× rated voltage with limited current, improving fail‑safe behavior.
• Compact high‑voltage form factor: 450 V rating in a φ22 × 40 mm can offers significant capacitance density for space‑constrained high‑voltage designs.
• Clear electrical limits and stability metrics: Specified leakage current formula, tan δ limits, and low‑temperature impedance ratios support predictable design margins.
• RoHS compliance: Simplifies regulatory handling for products sold in regions requiring RoHS conformity.

Why Choose LAR2W151MELZ40?

The LAR2W151MELZ40 is positioned for engineers seeking a robust, high‑voltage electrolytic capacitor that combines 450 V capability with meaningful capacitance and documented endurance at 105°C. Its snap‑in radial can package, quantified ripple current performance, and safety‑focused overvoltage behavior make it well suited to demanding general‑purpose power applications where long‑term thermal and electrical stability matter.

This part is a practical choice for design teams building mid‑to‑high‑voltage power supplies, DC link stages, and industrial converter systems that require verifiable performance data and RoHS compliance from a known capacitor series.

If you would like pricing or availability information or wish to request a quote for LAR2W151MELZ40, please submit a quote request or contact sales to start the process.