LKS1H392MESY

The LKS1H392MESY is a snap-in terminal aluminum electrolytic capacitor from Nichicon’s LKS series, sized for smaller audio equipment designs. It is a polarized, radial can snap-in capacitor rated at 3.9 mF and 50 V, intended for general-purpose use with a focus on audio applications where replacement from a small standard product may produce an effect on tone quality.

Engineered for compact assemblies, the component combines a compact footprint with specified ripple handling and defined endurance characteristics for reliable operation in audio and general-purpose electronics.

Key Features

• Capacitance & Voltage — Rated capacitance of 3.9 mF with a 50 V DC rating, suitable for energy storage and filtering in mid-voltage audio and power circuits.
• Package & Mounting — Radial, can-style snap-in package designed for snap-in mounting to printed circuit boards, enabling robust mechanical retention in compact assemblies.
• Size — Compact dimensions (L: 4 × D: 2 cm) for space-constrained designs that need higher capacitance in a smaller footprint.
• Electrical Tolerance & Polarity — Capacitance tolerance of ±20% and polarized construction; intended for circuits that accept polarized electrolytic capacitors.
• Ripple Handling — Low-frequency ripple current rating of 2.3 A at 120 Hz, providing defined AC current capability for smoothing and decoupling tasks.
• Operating Temperature & Endurance — Specified operating range of −40°C to +85°C with a rated life of 1000 hours at 85°C under rated voltage conditions.
• Leakage Current Specification — Leakage current conforms to the datasheet formula: after 5 minutes at 20°C the leakage is not more than 3√CV (μA) [C: μF, V: V].
• RoHS Compliance — Compliant to the RoHS directive (2011/65/EU,(EU)2015/863), meeting restricted-substance requirements.

Typical Applications

• Audio Equipment — Use in power supply filtering and decoupling for audio amplifiers and preamplifiers where a compact, higher-capacitance snap-in option is needed and tone-quality improvements are desired when replacing smaller standard parts.
• Power Supply Smoothing — Bulk energy storage and smoothing in general-purpose power supplies for consumer and professional electronics.
• Signal Conditioning — Decoupling and supply stabilization in electronic modules where polarized aluminum electrolytic capacitors are appropriate.

Unique Advantages

• Compact high-capacitance option: 3.9 mF in a 4 × 2 cm envelope provides higher stored energy without a large footprint, useful for space-constrained board designs.
• Snap-in mounting reliability: Radial snap-in terminals deliver strong mechanical retention for vertical can installation in chassis and PCB assemblies.
• Defined ripple capability: 2.3 A ripple current at 120 Hz gives designers a measurable AC handling parameter for filter and smoothing designs.
• Endurance specified at 85°C: 1000-hour rated life at 85°C under rated voltage provides predictable long-term performance parameters for thermal budgeting.
• RoHS-compliant construction: Enables use in products that must meet restricted-substance environmental requirements.
• Leakage current defined by formula: Leakage current specification using the 3√CV formula allows straightforward verification during design and testing.

Why Choose LKS1H392MESY?

The LKS1H392MESY balances compact form factor and electrical capability for audio and general-purpose electronic designs that require a polarized, snap-in aluminum electrolytic capacitor. With a 3.9 mF / 50 V rating, defined ripple current, and a specified 1000-hour endurance at 85°C, it is suited to engineers seeking predictable performance and environmental compliance in a smaller-sized snap-in package.

This part is appropriate for designers of audio equipment and other electronics who need higher capacitance in limited space while maintaining clear, datasheet-backed electrical and lifetime parameters. Nichicon’s LKS series documentation provides the measured characteristics and endurance limits necessary for reliable integration and long-term planning.

Request a quote or contact sales to discuss pricing and availability for the LKS1H392MESY and to obtain any additional technical information required for your design review.