LAQ2G470MELZ25ZB

The LAQ2G470MELZ25ZB is a snap-in terminal aluminum electrolytic capacitor from Nichicon’s LAQ series. It delivers 47 µF capacitance at a 400 V rated voltage in a smaller-sized radial, can-style snap-in package designed for general-purpose applications.

Engineered for elevated operating conditions, this part supports an operating temperature range of -25°C to 105°C and endurance specified at 2000 hours at 105°C under rated DC bias plus rated ripple current, providing reliable performance where high-voltage smoothing and energy storage are required.

Key Features

• Capacitance & Voltage — 47 µF capacitance with a 400 V rated voltage, suitable for high-voltage DC applications within the LAQ series.
• High Temperature Performance — Rated for operation from -25°C to 105°C, with endurance specified as 2000 hours at 105°C under DC bias plus rated ripple current.
• Snap-in Radial Package — Snap-in terminal, radial can package for secure board mounting and straightforward installation in power assemblies.
• Ripple Current Ratings — 350 mA at 120 Hz and 402.5 mA at 10 kHz, supporting AC ripple handling across common power frequencies.
• Leakage Current Spec — Series leakage current defined by I ≤ 3√C μA after 5 minutes at 20°C (C in μF), providing a measurable guideline for leakage behavior.
• Polarized Construction — Polarized aluminum electrolytic design for DC energy-storage and smoothing functions.
• Compact Dimensions — Smaller-sized footprint with dimensions L: 2.5 cm × D: 2.2 cm and a seated height maximum of 2.5 cm for space-constrained layouts.
• Tolerance — Capacitance tolerance of -20% to +20% at 120 Hz, 20°C.
• Safety Performance — Designed with a pressure relief vent that operates under abnormal conditions to avoid dangerous outcomes such as flames or case dispersion.

Typical Applications

• General-purpose power supplies — High-voltage smoothing and DC-link energy storage where a 400 V, 47 µF polarized capacitor is required.
• Industrial equipment — Use in assemblies that demand operation up to 105°C and robust endurance under continuous DC bias and ripple.
• Power conversion modules — Filtering and ripple suppression in converters and power conditioning circuits that require snap-in mounting and compact size.

Unique Advantages

• High-voltage capability: 400 V rating enables use in higher-voltage DC systems without changing topology.
• Thermal endurance: 2000-hour endurance at 105°C under rated conditions supports long-term reliability in elevated-temperature environments.
• Compact snap-in packaging: Smaller-sized radial can with snap-in terminals saves board space while providing secure mechanical attachment.
• Measured ripple performance: Specified ripple currents at 120 Hz and 10 kHz allow designers to assess thermal and ripple-handling limits against application profiles.
• Defined leakage behavior: Leakage current spec (I ≤ 3√C μA) gives a clear expectation for leakage after initial voltage application, aiding design verification.
• Built-in safety venting: Pressure relief vent reduces risk during abnormal voltage conditions, supporting safer system behavior.

Why Choose LAQ2G470MELZ25ZB?

LAQ2G470MELZ25ZB combines a 400 V rating and 47 µF capacitance in a smaller-sized snap-in aluminum electrolytic package engineered for general-purpose power applications. Its specified thermal range and 2000-hour endurance at 105°C make it well suited to designs that require sustained performance under elevated temperature and DC bias conditions.

This part is a practical choice for engineers seeking a compact, polarized capacitor with explicit ripple, leakage, and safety performance specifications to support reliable power filtering and energy storage in industrial and power-conversion environments.

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