LKG1H332MESBCK

The LKG1H332MESBCK is an aluminum electrolytic, snap-in terminal capacitor from Nichicon’s LKG series, specified at 3300 µF and 50 V. It is designed for high-grade audio equipment with an emphasis on high-fidelity and HD audio performance.

As a TYPE-III grade unit, this snap-in, radial can capacitor features construction choices targeted at preserving tone quality for demanding audio applications while offering industry-standard endurance and temperature characteristics.

Key Features

• Capacitance & Voltage — Rated capacitance of 3300 µF with a rated voltage of 50 V, tolerance ±20% (measured at 120 Hz, 20°C).
• Audio-grade TYPE-III Construction — TYPE-III classification aimed at the highest tone quality grade; the datasheet notes TYPE-III uses gold-plated terminals to reduce drag and support high-tone-quality needs for HD audio equipment.
• Package & Mounting — Snap-in terminal, radial can package (φ30 × 50L / L: 5 × D: 3 cm) for secure panel or chassis mounting in power sections of audio equipment.
• Operating Temperature & Endurance — Operating range −40°C to +85°C with endurance specified as 1000 hours at 85°C under rated voltage; capacitors meet specified endurance characteristics after restoration to 20°C.
• Ripple Current — Ripple current specified as 3.3 A at 120 Hz, suitable for smoothing and reservoir duties in audio power supplies at line frequency rectification.
• Leakage & Reliability — Leakage current specification: after 5 minutes at rated voltage and 20°C, leakage is not more than 3√(C·V) μA (C in μF, V in V), supporting predictable bias behavior.
• Low-temperature Stability — Impedance limits at low temperature: Z(−25°C)/Z(+20°C) ≤ 4 and Z(−40°C)/Z(+20°C) ≤ 12 (measurement at 120 Hz), helping maintain performance in cold environments.
• Regulatory Compliance — RoHS compliant (2011/65/EU, (EU)2015/863).

Typical Applications

• High-grade audio amplifiers — Energy reservoir and smoothing in amplifier power supplies where low-noise, stable biasing supports high-fidelity output.
• HD audio equipment — Power rail decoupling and bulk filtering in digital-to-analog converter systems and source components requiring tonal integrity.
• Audio power supply modules — Filtering and ripple reduction on rectified 120 Hz rails, leveraging the specified ripple current capability.

Unique Advantages

• Audio-oriented tone preservation: TYPE-III grade construction with gold-plated terminal design is specified to prioritize high-tone-quality performance for HD audio use cases.
• Robust ripple handling: Rated ripple current of 3.3 A at 120 Hz supports effective smoothing in line-frequency rectified power supplies.
• Wide operational temperature window: −40°C to +85°C operation covers typical environmental profiles for professional and consumer audio equipment.
• Defined endurance: 1000 hours at 85°C under rated voltage with post-test limits on capacitance, tan δ, and leakage provide traceable lifecycle expectations.
• Predictable leakage behavior: Leakage current limit of 3√(C·V) μA (after 5 minutes at 20°C) aids in reliable circuit biasing and design margining.
• RoHS compliance: Conforms to applicable RoHS directives for use in regulated assemblies.

Why Choose LKG1H332MESBCK?

The LKG1H332MESBCK is positioned for audio-focused designs that require a combination of substantial bulk capacitance, snap-in mounting robustness, and construction choices targeted at tonal fidelity. Its TYPE-III grade and gold-plated terminal approach address the needs of HD audio equipment and high-grade amplifiers where sound quality is a priority.

With explicit endurance and leakage specifications, a clear operating temperature range, and ripple-current capability stated for 120 Hz operation, this capacitor is well suited to engineers specifying power supply bulk and smoothing components in professional and high-end consumer audio systems.

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