LLG2G681MELB45

CAP ALUM 680UF ±20% 400V SNAP-IN
Part Description

680 µF 400 V ±20% Aluminum Electrolytic Capacitor, Snap-In

Quantity 1,113 Available (as of November 3, 2026)
Product CategoryAluminum Electrolytic Capacitors
Part SeriesLLG
ManufacturerNichicon
Manufacturing StatusMass Production
Manufacturer Standard Lead TimeContact Us
Datasheet

Specifications & Environmental

ApplicationsGeneral PurposeCapacitance680 µFECCNEAR99
ESRN/AHeight Seated (Max)4.7 cmHTS Code8532.22.0040
ImpedanceN/ALead SpacingN/ALifetime @ Temp2000 h @ 85°C
Moisture Sensitivity LevelN/AMounting MethodSnap InOperating Temperature-25°C - 85°C
Package / CaseRadial, Can - Snap-InPolarizationPolarRatingsN/A
REACH ComplianceREACH UnaffectedRipple Current High Frequency3.847 A @ 100 kHzRipple Current Low Frequency2.69 A @ 120 Hz
RoHS ComplianceCompliantSize / Dimension45 x 30 mmSurface Mount Land SizeN/A
Tolerance-20%~20%Voltage400 V

Overview of LLG2G681MELB45 – Aluminum Electrolytic Capacitor, 400 V, 680 µF, Snap‑In

The LLG2G681MELB45 is a Nichicon LLG series aluminum electrolytic capacitor in a snap‑in terminal radial can. It delivers 680 µF capacitance at a 400 V rating in a compact, polarized package intended for general‑purpose electronic designs.

Designed one rank smaller than the LLS series to support equipment downsizing, the part is RoHS compliant and specified for operation from −25 °C to +85 °C with an endurance rating of 2000 hours at 85 °C.

Key Features

  • Capacitance & Voltage — 680 µF rated capacitance at 400 V, providing a high voltage/capacitance combination in a single component.
  • Snap‑in Radial Can Package — Snap In mounting, radial can package for through‑hole board installation and mechanical retention.
  • Compact Footprint — Case sized one rank smaller than LLS, enabling smaller assemblies and equipment downsizing; physical size L: 4.5 × D: 3 cm.
  • Operating Temperature Range — Specified for −25 °C to +85 °C for reliable performance across typical industrial and commercial environments.
  • Endurance & Reliability — Rated lifetime of 2000 hours at 85 °C under DC bias plus rated ripple current, with defined acceptance criteria for capacitance, tan δ, and leakage current.
  • Ripple Current Capability — Rated ripple current of 2.69 A at 120 Hz and 3.847 A at 100 kHz to support applications with AC content on the DC bus.
  • Polarized, General‑Purpose — Polar capacitor intended for general‑purpose applications where polarized electrolytic capacitance is required.
  • RoHS Compliant — Conforms to RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

  • General‑purpose electronics — Use where a 400 V, 680 µF polarized electrolytic capacitor is needed for bulk capacitance in compact designs.
  • Compact equipment designs — One rank smaller case size than LLS helps reduce board space and enable equipment downsizing.
  • Board‑mounted high‑voltage modules — Snap‑in radial can style provides secure through‑hole mounting for assemblies requiring high voltage capacitance.

Unique Advantages

  • Space‑saving form factor: One rank smaller case than the LLS series reduces PCB area for more compact systems.
  • High voltage / high capacitance pairing: 400 V rating combined with 680 µF supports designs that need substantial energy storage at elevated voltages.
  • Robust ripple handling: Specified ripple currents at both 120 Hz and 100 kHz provide measurable performance for AC‑coupled DC applications.
  • Defined endurance: 2000 hours at 85 °C under rated conditions with clear post‑test acceptance criteria for capacitance, tan δ, and leakage current.
  • Snap‑in convenience: Radial can snap‑in terminals offer secure mechanical retention for through‑hole assemblies.
  • Regulatory compliance: RoHS compliance simplifies selection for designs requiring restricted‑substance conformity.

Why Choose LLG2G681MELB45?

LLG2G681MELB45 balances high voltage capability and substantial capacitance in a snap‑in, compact package that supports equipment downsizing and reliable board mounting. Its specified endurance at 85 °C and verified ripple current ratings make it suitable for designers who require measurable, documented performance for general‑purpose high‑voltage applications.

This Nichicon LLG series part is appropriate for engineering teams and procurement seeking a RoHS‑compliant, polarized aluminum electrolytic capacitor with clear datasheet parameters for temperature range, endurance, and ripple performance.

Request a quote or contact sales to discuss availability, pricing, and lead times for the LLG2G681MELB45.

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