LAR2W331MELC35

The LAR2W331MELC35 is a snap‑in terminal aluminum electrolytic capacitor engineered for high‑voltage, general‑purpose power applications. It provides 330 µF capacitance at a 450 V rating in a compact φ35 × 35 mm can with snap‑in mounting for robust board retention.

Designed for elevated operating conditions, this capacitor withstands 2000 hours of rated ripple current at 105°C and includes construction features to reduce short incidence under overvoltage stress. It is RoHS compliant for use in lead‑restricted designs.

Key Features

• Capacitance & Voltage — 330 µF nominal capacitance with a rated voltage of 450 V; capacitance tolerance ±20% at 120 Hz, 20°C.
• High‑temperature Endurance — Specified to endure 2000 hours when DC bias plus rated ripple current is applied at 105°C; capacitance change remains within ±20% after the endurance test.
• Overvoltage Safety — Construction reduces short incidence when exposed to overvoltage (rated voltage × 1.5); safety test shows more than 60% passing under specified overvoltage conditions (limited current = 1 A) with defined venting behavior.
• Ripple Current Performance — Rated ripple current: 1.38 A at 120 Hz and 1.973 A at 50 kHz. Frequency coefficients for 400/450 V parts are provided (e.g., 0.77 at 50 Hz, 1.00 at 120 Hz, 1.43 at 50 kHz+), enabling frequency‑dependent sizing.
• Temperature Range & Low‑temp Stability — Operating range −25°C to +105°C for this voltage class; impedance ratio Z(−25°C)/Z(+20°C) = 8 for 400/450 V ratings (data for low‑temperature behavior included in the series specifications).
• Leakage & Loss Characteristics — Leakage current specification: I ≤ 3√(C·V) µA after 5 minutes at 20°C (C in µF, V in V). Tangent of loss angle (tan δ) maximum for 450 V parts is 0.20 at 120 Hz, 20°C.
• Package & Mounting — Radial, can‑type snap‑in package (φ35 × 35 mm / 3.5 × 3.5 cm) for secure mechanical mounting and straightforward PCB integration.
• RoHS Compliance & Identification — Compliant with RoHS directive; parts are printed with white lettering on a black sleeve for clear identification.

Typical Applications

• General‑purpose power filtering — Bulk smoothing and DC link energy storage in high‑voltage power circuits where a 450 V rated snap‑in capacitor is required.
• Industrial power electronics — High‑voltage filtering and ripple handling in industrial power supplies and converters that operate at elevated temperature.
• High‑frequency ripple management — Applications requiring reliable ripple current performance across a range of frequencies, supported by the series frequency‑coefficient data.

Unique Advantages

• High‑voltage capability: 450 V rating supports demanding DC link and smoothing applications without up‑rating multiple lower‑voltage parts.
• Proven high‑temperature endurance: 2000 hours at 105°C under rated ripple conditions provides a clear reliability baseline for elevated operating environments.
• Measured ripple‑current data: Explicit ripple current values at 120 Hz and 50 kHz and series frequency coefficients simplify thermal and lifetime calculations across operating frequencies.
• Overvoltage mitigation: Series safety design reduces short incidence under 1.5× rated voltage stress and meets defined pass criteria in overvoltage testing.
• Compact, secure mounting: Snap‑in radial can (φ35 × 35 mm) enables strong mechanical attachment for robust boards and assemblies.
• RoHS compliant: Meets lead‑restriction requirements for regulated markets.

Why Choose LAR2W331MELC35?

The LAR2W331MELC35 positions itself as a reliable, high‑voltage snap‑in electrolytic solution for designs that require 450 V capacitance with demonstrated high‑temperature endurance. Its published endurance, leakage, tan δ, ripple current, and frequency‑coefficient specifications provide the engineering data needed to size and validate capacitors for demanding power applications.

This part is suited to designers and procurement teams seeking a RoHS‑compliant, mechanically secure capacitor with verified performance under long‑term ripple and overvoltage conditions. The documented electrical and safety characteristics help reduce risk and simplify verification in production designs.

Request a quote or submit a quote request for pricing and lead‑time information for LAR2W331MELC35 to evaluate it for your next design.