LGY1E123MELZ45

The LGY1E123MELZ45 is an aluminum electrolytic capacitor in a snap‑in terminal radial can designed for long‑life, high‑reliability applications. It is part of Nichicon’s LGY series, engineered for continuous operation up to 105°C and intended for industrial power supplies and ballast applications where sustained ripple handling and durability are critical.

Key value propositions include a 12 mF capacitance at 25 V rating, a snap‑in mounting for robust board retention, long life assurance validated to 5000 hours at 105°C, and RoHS compliance.

Key Features

• Capacitance & Voltage: 12 mF capacitance rated at 25 V, with capacitance tolerance of ±20% (−20% to +20%).
• High‑temperature Long Life: Endurance specified for 5000 hours at 105°C under DC bias plus rated ripple current; capacitance change within ±25% after the endurance test.
• Ripple Current Capability: Rated ripple current of 2.6 A at 120 Hz and 2.99 A at 50 kHz; frequency coefficient of rated ripple current is provided in the series data (e.g., 120 Hz = 1.00, 50 kHz or more = 1.15).
• Operating Temperature Range: Specified for −40°C to +105°C operation.
• Loss and Leakage Characteristics: Tangent of loss angle (tan δ) max for 25 V is 0.40 (measured at 120 Hz, 20°C). Leakage current follows the series formula I ≤ 3√CV (µA) after 5 minutes at 20°C.
• Package & Mounting: Radial, can-type with snap‑in terminals for secure board mounting; physical size L: 4.5 × D: 2.2 cm.
• Polarized Design & Compliance: Polarized aluminum electrolytic construction; RoHS directive compliant (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial Power Supplies: Bulk energy storage and smoothing where 25 V rating and high ripple endurance at elevated temperatures are required.
• Ballast Circuits: Filtering and ripple management in ballast designs, leveraging the long life assurance at 105°C.
• General Purpose Power Electronics: DC link, decoupling and energy buffering in equipment that demands durable electrolytic solutions with snap‑in retention.

Unique Advantages

• Validated Long Life: 5000 hours endurance at 105°C ensures predictable performance in continuous high‑temperature operation.
• Robust Ripple Handling: Specified ripple current ratings at both low and high frequencies (2.6 A at 120 Hz, 2.99 A at 50 kHz) support effective filtering under real‑world ripple loads.
• Clear Performance Limits: Leakage and loss specifications (I ≤ 3√CV after 5 minutes; tan δ limits) provide measurable parameters for design and verification.
• Snap‑In Mechanical Reliability: Radial snap‑in can package provides secure board mounting for industrial assemblies.
• Wide Operating Range: −40°C to +105°C rating covers demanding thermal environments common in industrial electronics.
• Regulatory Compliance: RoHS conformity supports usage in regulated markets and simplifies end‑product compliance tracking.

Why Choose LGY1E123MELZ45?

The LGY1E123MELZ45 positions itself as a durable, high‑temperature aluminum electrolytic capacitor tailored for industrial power electronics and ballast applications. With a 25 V rating, 12 mF capacitance, defined ripple current capability across frequencies, and endurance demonstrated for 5000 hours at 105°C, it delivers verifiable behavior for designs that require long operational life under thermal and ripple stress.

This part is suitable for engineering teams and procurement focused on robustness and predictable lifecycle performance. Its combination of clear electrical limits, snap‑in mounting, and RoHS compliance supports reliable integration into industrial power supplies and related systems where long‑term stability matters.

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