LKX2E331MESY40

The LKX2E331MESY40 is a 330 µF, 250 V polarized aluminum electrolytic capacitor in a snap‑in radial can designed for power filtering in audio equipment and switching power supplies. Built to operate across –40°C to 105°C with a 2000‑hour endurance rating at 105°C, it targets general‑purpose power applications that require sustained ripple handling and low leakage.

Key Features

• Capacitance & Voltage — 330 µF rated capacitance with a 250 V nominal voltage and ±20% tolerance at 120 Hz, 20°C.
• High ripple capability — Rated ripple current of 1.2 A at 120 Hz (low frequency) and 1.8 A at 50 kHz (high frequency), supporting power‑supply smoothing and decoupling across common switching and line frequencies.
• Endurance & Temperature Range — Life specification of 2000 hours at 105°C with performance recovery to meet endurance limits after DC bias plus rated ripple current; operating range −40°C to +105°C.
• Low leakage — Specified leakage current of 860 µA, limiting standby losses and reducing bias current impact in power circuits.
• Audio‑oriented materials — Series materials selected to achieve superior acoustic sound, suitable for audio equipment power stages and related applications.
• Package & Mounting — φ20 × 40 mm radial can with snap‑in terminals for secure PCB mounting; supplied in tray packing for volume assembly.
• Regulatory — RoHS compliant.

Typical Applications

• Audio equipment power rails — Bulk filtering and smoothing for amplifier and preamplifier supply rails where materials are selected for acoustic performance.
• Switching power supplies — Output and intermediate bus filtering in switch‑mode power supplies that require sustained ripple handling at both low and high frequencies.
• General power filtering — Decoupling and energy storage in industrial and commercial power electronics where temperature endurance and low leakage are important.

Unique Advantages

• Designed for sustained ripple — Defined ripple current ratings at 120 Hz and 50 kHz provide measurable performance for both low‑frequency line and high‑frequency switching environments.
• Engineered for elevated temperatures — 2000 hours endurance at 105°C supports reliable operation in thermally demanding power designs.
• Low leakage impact — Specified 860 µA leakage current helps minimize bias losses and supports stable DC performance.
• Audio-focused material selection — Materials chosen to enhance acoustic characteristics, making this capacitor suitable for audio power stages where sound quality matters.
• Snap‑in radial can — Robust mechanical mounting and tray packing streamline PCB assembly and production handling.
• RoHS compliance — Meets environmental regulatory requirements for lead‑free designs.

Why Choose LKX2E331MESY40?

LKX2E331MESY40 delivers a balanced combination of capacitance, voltage rating, and ripple performance for power supply and audio applications that operate across a wide temperature range. Its 2000‑hour endurance at 105°C, controlled leakage, and snap‑in mounting make it well suited for designs where long‑term thermal resilience and robust PCB installation are required.

This part is a fit for engineers and procurement teams specifying components for audio equipment, switching power supplies, and general power filtering tasks where measurable ripple capability, RoHS compliance, and tray packing for production are priorities.

Request a quote or submit an RFQ to evaluate LKX2E331MESY40 for your next power‑supply or audio project; our team can provide pricing, availability, and support information upon request.