LLG2E681MELZ45

The LLG2E681MELZ45 is an aluminum electrolytic capacitor from Nichicon's LLG series, offered in a snap-in terminal radial can for through-hole mounting. It provides 680 µF nominal capacitance at a 250 V rated voltage and is designed as a smaller-sized option within the LLG family to support equipment downsizing.

Targeted for general-purpose applications, this capacitor combines a compact footprint with defined ripple-current ratings and endurance specifications to meet common power-related needs in constrained assemblies.

Key Features

• Capacitance & Voltage: 680 µF nominal capacitance with a 250 V rated voltage and capacitance tolerance of ±20% (at 120 Hz, 20°C).
• Snap‑in Radial Can Package: Snap-in terminal type in a radial, can-style package for secure PCB mounting; size dimensions L: 4.5 × D: 2.2 cm and a Maximum seated height of 1.772 inch.
• Operating Temperature & Endurance: Rated for operation from −40°C to +85°C with an endurance of 2000 hours at 85°C under DC bias plus rated ripple current (capacitance and electrical characteristics restored to meet specified limits after test).
• Ripple Current Ratings: Rated ripple current of 2.5 A at 120 Hz and 3.75 A at 100 kHz, specified for thermal and performance planning.
• Electrical Stability & Loss: Tangent of loss angle (tan δ) applicable to this voltage range is specified (tan δ max. 0.15 for 160–400 V); low-temperature impedance stability is specified in the datasheet (Z(−25°C)/Z(+20°C) max. 4 for 160–250 V).
• Leakage Current: Initial leakage current defined by I ≤ 3√CV (µA) after 5 minutes' application of rated voltage at 20°C, enabling predictable bias behavior.
• Environmental Compliance: RoHS compliant (2011/65/EU, (EU)2015/863).

Typical Applications

• General‑purpose power assemblies: Provides 680 µF bulk capacitance at 250 V for smoothing and energy-storage roles in general-purpose circuits.
• Space‑constrained equipment: One rank smaller case size than LLS makes it suited for equipment downsizing where PCB space is limited.
• Through‑hole power modules: Snap‑in radial can package supports robust through‑hole mounting in power and industrial assemblies.

Unique Advantages

• Compact high‑voltage bulk capacitance: 680 µF at 250 V in a smaller LLG package delivers significant capacitance without large case dimensions.
• Designed for downsizing: One-rank smaller case than LLS helps minimize board area in space-limited designs.
• Defined high‑temperature endurance: 2000 hours at 85°C under rated conditions provides a clear reliability expectation for thermal planning.
• Specified ripple capability: Rated ripple currents (2.5 A @120 Hz, 3.75 A @100 kHz) allow designers to size cooling and thermal margins accurately.
• Predictable leakage behavior: Leakage current specified by the I ≤ 3√CV formula after voltage application supports confident biasing decisions.
• RoHS compliance: Meets applicable RoHS directives for environmental regulatory requirements.

Why Choose LLG2E681MELZ45?

The LLG2E681MELZ45 is positioned for designers who need a compact, 250 V-rated aluminum electrolytic capacitor with substantial bulk capacitance and clear electrical and endurance specifications. Its snap-in radial can and one-rank-smaller LLG package make it a practical choice when reducing board footprint is a priority while retaining defined ripple and lifetime characteristics.

This part suits general-purpose power assemblies and space-constrained equipment where predictable leakage, loss specifications, and RoHS compliance are required. The documented endurance and ripple ratings support component selection and thermal planning in production designs.

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