LGJ2E151MELY20

The LGJ2E151MELY20 is an aluminum electrolytic capacitor in Nichicon’s LGJ series designed as a snap-in terminal type with a low-profile can. It delivers 150 µF capacitance at a 250 V rating and is polarized for general-purpose power-circuit use.

Engineered for elevated temperature operation and robust ripple handling, this snap-in 20 × 20 mm (φD × L) package is intended for applications that require compact bulk capacitance, reliable high-temperature performance, and straightforward snap-in mounting.

Key Features

• Electrical Performance — 150 µF capacitance with a 250 V rated voltage and ±20% tolerance (measured at 120 Hz, 20°C).
• Ripple Handling — Rated ripple 660 mArms at 120 Hz; frequency coefficient of rated ripple allows higher ripple capability at higher frequencies (e.g., 990 mA at 50 kHz reported for the part).
• High-Temperature Operation — Rated for operation from −40°C to +105°C for 200–250 V versions; designed for sustained performance up to 105°C.
• Reliability / Lifetime — Specified lifetime of 3000 hours at 105°C, providing predictable end-of-life planning for high-temperature applications.
• Leakage & Loss — Leakage current specification follows I ≤ 3√CV (µA) after 5 minutes at 20°C; tangent of loss angle (tan δ) for 200–400 V is specified with a max of 0.15 at 120 Hz, 20°C.
• Package & Mounting — Low-profile radial can (snap-in) package, compact 20 × 20 mm footprint for space-constrained board layouts and robust snap-in mounting.
• Polarized Design — Conventional electrolytic polarity for bulk energy storage and DC filtering in power circuitry.

Typical Applications

• Power supply smoothing and bulk storage — Provides bulk capacitance and ripple suppression for general-purpose power circuits within its 250 V rating.
• DC link and filtering — Snap-in mounting and 150 µF capacitance support filtering duties where a compact, high-temperature-capable electrolytic is required.
• Industrial equipment — Designed for general-purpose use in elevated-temperature environments up to 105°C and for designs that benefit from snap-in mechanical retention.

Unique Advantages

• Compact low-profile footprint — 20 × 20 mm can size provides significant bulk capacitance in a small radial snap-in package to save board area.
• High-temperature endurance — 3000-hour rating at 105°C supports reliable operation in demanding thermal environments.
• Robust ripple capacity — 660 mArms at 120 Hz with higher-frequency capability (reported 990 mA at 50 kHz) for effective ripple management across a range of switching frequencies.
• Clear electrical limits — Leakage current and tan δ are specified (I ≤ 3√CV after 5 minutes; tan δ max 0.15 at 120 Hz for 200–400 V), enabling predictable design margins.
• Snap-in mechanical retention — Snap-in terminals simplify board assembly for through-hole power designs and provide secure mounting.

Why Choose LGJ2E151MELY20?

LGJ2E151MELY20 combines a compact low-profile 20 × 20 mm can with 150 µF of capacitance at 250 V, delivering a balance of bulk energy storage, ripple capability, and high-temperature endurance for general-purpose power-circuit designs. Its snap-in package simplifies mounting while supporting reliable operation up to 105°C and a specified 3000-hour lifetime at that temperature.

This part is well-suited to engineers specifying rugged, space-efficient electrolytic solutions for power filtering and DC-link applications where clear electrical limits (leakage, tan δ) and frequency-dependent ripple performance are required.

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