LKX2E122MESC40

The LKX2E122MESC40 is a snap‑in, radial can aluminum electrolytic capacitor designed for audio equipment and switching power supplies. It delivers 1.2 mF capacitance at a 250 V rating with materials selected to support superior acoustic sound quality.

Engineered for general‑purpose power filtering and smoothing, this RoHS‑compliant unit offers robust temperature and lifetime performance suitable for demanding electronic power circuits.

Key Features

• Capacitance & Voltage — 1.2 mF capacitance rated at 250 V, suitable for bulk energy storage and decoupling in power supply rails.
• Snap‑in Mounting — Snap‑in terminal radial can package for secure mechanical retention and straightforward PCB assembly.
• Acoustic‑oriented Materials — Selected materials to achieve superior acoustic sound, intended for audio equipment applications.
• Temperature Range — Operating from −40°C to +105°C, matching the series’ 105°C standard for 200–250 V parts.
• Endurance — Rated for 2000 hours at 105°C under rated conditions to support reliable long‑term operation in higher‑temperature environments.
• Ripple Current Capability — 2.3 A at 120 Hz (low frequency) and 3.45 A at 50 kHz (high frequency) to handle AC ripple in switching supplies.
• Tolerance — Capacitance tolerance of −20% to +20% (measured at 120 Hz, 20°C), for predictable design margins.
• Compact Footprint — Size dimension L: 4 × D: 3.5 cm for dense power assemblies where board area is constrained.
• Regulatory — Compliant with the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Audio equipment power supplies — Bulk filtering and smoothing in switching supplies where material selection supports improved acoustic performance.
• Switching power supplies — Energy storage and ripple handling on high‑voltage rails for converters and regulators.
• General purpose power filtering — Decoupling and bulk capacitance in industrial and consumer power assemblies requiring 250 V ratings.

Unique Advantages

• Audio‑focused material set: Materials chosen to enhance acoustic sound quality, making this part suitable for audio‑sensitive designs.
• High temperature endurance: 2000 hours at 105°C provides extended operational reliability under sustained thermal stress.
• Robust ripple handling: Specified ripple currents at both low (120 Hz) and high (50 kHz) frequencies support switching supply and amplifier demands.
• Secure snap‑in mounting: Radial snap‑in can design simplifies assembly and offers strong board retention for power modules.
• Wide operating range: −40°C to +105°C allows deployment across a broad set of environmental conditions.
• RoHS compliant: Meets current RoHS requirements for environmentally regulated designs.

Why Choose LKX2E122MESC40?

The LKX2E122MESC40 combines a high 250 V rating and 1.2 mF capacitance with design choices targeted at audio applications, making it a practical choice for engineers building switching power supplies and power stages for audio equipment. Its specified ripple capabilities, wide operating temperature range, and extended endurance at 105°C provide predictable performance in demanding power environments.

This capacitor is well suited for designers who need reliable bulk energy storage and ripple suppression while maintaining material selection that supports acoustic performance. The combination of snap‑in packaging and RoHS compliance supports streamlined assembly and regulatory alignment for commercial and industrial products.

If you would like pricing, availability, or a formal quote for LKX2E122MESC40, please request a quote or contact our sales team with your project details and quantity requirements.