LGU1E183MELB

The LGU1E183MELB from Nichicon is an aluminum electrolytic, snap-in terminal capacitor specified for general-purpose electronic applications. It provides 18 mF capacitance at a 25 V rating in a polarized, radial snap‑in can designed for robust power-handling and board-mounted installations.

Designed to operate from −40°C to 105°C and to withstand 3000 hours of rated ripple current at 105°C, this part targets designs that require sustained ripple endurance and bulk capacitance in a compact snap‑in package. The device is RoHS compliant.

Key Features

• Capacitance & Voltage — 18 mF nominal capacitance with a 25 V rated voltage and ±20% tolerance (measured at 120 Hz, 20°C).
• High-temperature Endurance — Endurance specified for 3000 hours at 105°C with D.C. bias plus rated ripple current applied; meets the LGU series endurance criteria.
• Ripple Current Performance — Rated ripple current values of 3.56 A at 120 Hz and 4.094 A at 50 kHz, supporting substantial AC ripple handling in power circuits.
• Operating Temperature Range — Specified for −40°C to +105°C operation, aligning with high ambient temperature applications within the LGU series limits.
• Leakage Current Specification — Leakage current defined by the LGU series: I ≤ 3 CV (μA) after 5 minutes’ application of rated voltage at 20°C (C = rated capacitance in μF, V = voltage in V).
• Tangent of Loss Angle (tan δ) — Series specification includes tan δ limits; for 25 V rated parts the maximum tan δ is 0.40 (measured at 120 Hz, 20°C).
• Polarized, Snap‑In Package — Radial can with snap‑in terminals for secure board mounting and mechanical stability; package dimensions L: 4 × D: 3 cm and maximum seated height 1.575 inch are defined for installation planning.
• Regulatory Compliance — RoHS directive compliant (2011/65/EU, (EU)2015/863).

Typical Applications

• General-purpose electronic equipment — Bulk capacitance and ripple endurance for circuits that require a polarized 18 mF, 25 V snap‑in electrolytic capacitor.
• Power supply filtering — Use where sustained rated ripple current at elevated temperature (3000 h at 105°C) is needed to stabilize DC rails and filter AC ripple.
• Industrial and stationary power modules — Board-mounted snap‑in installation for assemblies that benefit from durable, high-capacitance components specified for long-term thermal stress.

Unique Advantages

• Proven high-temperature endurance — 3000 hours at 105°C under rated ripple current provides a clear specification for long-term thermal stress performance.
• Strong ripple handling — Explicit ripple current ratings at 120 Hz and 50 kHz enable designers to evaluate suitability for both low- and high-frequency ripple environments.
• Large bulk capacitance in a compact snap‑in can — 18 mF in a radial snap‑in package supports high-density board layouts while maintaining mechanical retention.
• Measurable electrical loss and leakage specs — Series tan δ and leakage current formulas allow direct calculation of expected electrical behavior under standard test conditions.
• RoHS compliance — Meets applicable RoHS directives for restricted substances, simplifying regulatory considerations for many markets.

Why Choose LGU1E183MELB?

LGU1E183MELB combines substantial bulk capacitance, defined ripple current capability, and a snap‑in radial package to address power-rail smoothing and bulk energy storage needs where elevated ambient temperatures and sustained ripple are design drivers. The part’s endurance rating at 105°C and clear electrical specifications let engineers quantify long-term performance and reliability within their designs.

This Nichicon LGU series part is suited to engineers and procurement teams specifying robust, general-purpose electrolytic capacitors for board-mounted power stages and module assemblies that require documented thermal and ripple endurance plus RoHS compliance.

If you would like pricing, lead-time or to request a quote, please contact sales to discuss availability and specification details for LGU1E183MELB.