LKSA2123MESB

The LKSA2123MESB is a snap-in terminal aluminum electrolytic capacitor in Nichicon's LKS series, developed for audio equipment and general-purpose electronic designs. It provides 12 mF capacitance at a 42 V rating in a compact radial can with snap-in mounting for PCB assembly.

Built for applications requiring polarized energy storage and smoothing, the part combines a design focused on audio tone quality with electrical characteristics suitable for power supply filtering and decoupling in consumer and professional audio systems.

Key Features

• Capacitance & Voltage — 12 mF (12,000 μF) nominal capacitance rated at 42 V with ±20% tolerance, suitable for bulk filtering and energy storage on power rails.
• Audio-oriented Performance — Specified as a snap-in type for audio equipment with a stated effect of tone-quality improvement when replacing smaller standard products.
• Package & Mounting — Radial can, snap-in terminal package designed for secure PCB mounting and straightforward assembly.
• Ripple Current — Rated low-frequency ripple handling of 3.8 A at 120 Hz, supporting power-supply smoothing in audio circuits.
• Environmental & Lifetime — RoHS compliant and specified lifetime of 1000 hours at 85°C; operating temperature range is −40°C to +85°C.
• Polarized Electrolytic — Polarized capacitor for DC power applications where polarity is maintained.

Typical Applications

• Audio Equipment — Bulk filtering and power smoothing in amplifiers, preamps and audio power supplies where improved tonal response is desired.
• Power Supply Filtering — Energy storage and decoupling on DC rails for consumer and professional electronics requiring stable supply rails.
• General-Purpose Electronic Equipment — Polarized capacitor roles such as reservoir and smoothing in a variety of circuit topologies.

Unique Advantages

• Audio-focused design — The LKS series is described as delivering smaller size with improved tone quality versus similar standard parts, supporting component upgrades in audio designs.
• High ripple capability — 3.8 A ripple current rating at 120 Hz enables effective handling of low-frequency ripple in power supplies.
• Compact snap-in form factor — Radial snap-in can simplifies board mounting while providing robust mechanical retention.
• Wide operating range — Operates from −40°C to +85°C, with a 1000-hour endurance at 85°C for predictable performance in defined environments.
• Regulatory compliance — RoHS compliant (2011/65/EU, (EU)2015/863), supporting environmentally conscious designs.

Why Choose LKSA2123MESB?

LKSA2123MESB targets designers seeking a polarized, snap-in aluminum electrolytic capacitor that addresses audio-specific needs while providing solid electrical performance for power filtering and energy storage. Its 12 mF / 42 V rating, 3.8 A ripple capability, and stated tone-quality benefits make it a practical upgrade option for audio circuits and general-purpose power rails.

The combination of a compact radial snap-in package, RoHS compliance, a −40°C to +85°C operating range and a 1000-hour rated life at 85°C provides a clear specification set for procurement and design-in decisions where predictable electrical and environmental behavior is required.

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