LGJ2G121MELB20

The LGJ2G121MELB20 is a snap-in terminal aluminum electrolytic capacitor offering 120 µF capacitance at a 400 V rating in a low-profile radial can package. It is designed for general-purpose applications where a polarized, high-voltage aluminum electrolytic with elevated temperature capability is required.

Built for operation up to 105°C and featuring snap-in mounting, this part targets designs that need compact high-voltage bulk capacitance combined with defined ripple and leakage characteristics for reliable system integration.

Key Features

• Core electrical characteristics — 120 µF capacitance with tolerance of −20% to +20% and polarized construction; rated for 400 V.
• Temperature and endurance — Operating temperature range −25°C to +105°C and a rated lifetime of 3000 hours at 105°C, supporting sustained high-temperature use.
• Package and mounting — Snap-in terminal, radial can package with low-profile sizing (dimensions: L: 2 × D: 3 cm and seated height maximum 2 cm) for space-conscious board layouts.
• Ripple current specification — Rated ripple current of 860 mA at 120 Hz and 1.23 A at 50 kHz, with frequency coefficients that increase with frequency (up to approximately 1.43 at 50 kHz or more for 400–450 V series values) to support AC performance planning.
• Leakage and dissipation — Leakage current defined as I ≤ 3√CV (µA) after 5 minutes at 20°C; tangent of loss angle (tan δ) maximum 0.15 measured at 120 Hz, 20°C for 200–400 V ratings.
• Marking — Printed with white characters on a black sleeve for clear identification.

Typical Applications

• General-purpose power equipment — Suited for general-purpose applications that require 120 µF at 400 V in a snap-in, radial can form factor.
• General-purpose electronic assemblies — Applicable where a polarized aluminum electrolytic with defined ripple and leakage specs is needed in a compact, low-profile package.
• High-temperature general-purpose installations — Appropriate for equipment operating up to 105°C, supported by a 3000-hour rated lifetime at that temperature.

Unique Advantages

• High-voltage, mid-capacitance offering — The 400 V rating combined with 120 µF capacitance addresses designs that need substantial DC voltage capability in a single component.
• Compact low-profile design — Low-profile radial can and snap-in mounting permit dense board layouts without sacrificing capacitance or voltage rating.
• Defined AC performance — Published ripple current values at both low and high frequencies plus frequency coefficients enable predictable thermal and ripple planning.
• Temperature endurance — Rated for operation to 105°C with a 3000-hour lifetime at that temperature, supporting sustained elevated-temperature deployments.
• Measurable leakage and dissipation limits — Leakage current and tan δ specifications (including the I ≤ 3√CV formula and tan δ max) facilitate verification against system requirements.

Why Choose LGJ2G121MELB20?

The LGJ2G121MELB20 delivers a focused combination of 120 µF capacitance and 400 V rating in a snap-in, low-profile aluminum electrolytic package engineered for general-purpose applications requiring reliable performance at elevated temperatures. Its specified ripple, leakage, and tan δ characteristics allow engineers to design with predictable electrical behavior.

This part is well suited to designs that demand compact high-voltage bulk capacitance with clear, verifiable electrical and thermal specifications. It offers long-term value through defined endurance at 105°C and a packaging style that simplifies board-level mounting for high-voltage applications.

Request a quote or submit a quotation request to receive pricing and availability information for the LGJ2G121MELB20 and to discuss suitability for your design needs.