680uF 450V Snap-in Aluminum Electrolytic Capacitor – 35×50 / 35×55 / 35×60mm

Polarized 680µF (680MFD) 450VDC aluminum electrolytic capacitor, snap-in mount, Ø35mm body with 50mm / 55mm / 60mm height options, 10mm lead spacing. Available cross-referenced to Nichicon GU / GG / LQ class and equivalent snap-in series.

Specifications

• Capacitance: 680µF (marked 680MFD), ±20%
• Rated Voltage: 450V DC (use ≤80% of rating for continuous rail)
• Mounting: Snap-in, through-hole PCB, 2-pin / 4-pin
• Body: Ø35 × 50mm / 55mm / 60mm
• Pin Pitch: 10mm standard
• Temp: 85°C (LQ class) / 105°C (GU / GG class)
• Life: 2000h~5000h @ rated temp (series dependent)
• Polarity: Polarized – “−” stripe + vent on negative side

Series Cross-reference

• GU: Nichicon 105°C, 3000h, standard snap-in industrial[3](@ref)
• GG: Nichicon 105°C, high ripple, 2000~3000h, e.g. LGG2W681MELC50 (35×50)[1,10](@ref)
• LQ: Nichicon 85°C economy / fast-discharge flash use, e.g. 35×55 LQ class[7](@ref)
• Cross options: TDK B43601/B43644, Rubycon USG/HXH, CDE 380LQ, Chemi-Con KMR[2,11,5,4,8](@ref)

Typical Applications

• SMPS bulk capacitor after rectifier
• Inverter / motor drive DC-link
• UPS and welding machine energy buffer
• Class AB amplifier reservoir / tube amp B+ filter
• LED power supply, comms power, industrial PSU repair

Size Selection

• 35×50mm – most common, fits LGG2W681MELC50 / USG / KMR footprints[1,5,8](@ref)
• 35×55mm – alternate height for EPCOS B43644 / LQ replacements[11,17](@ref)
• 35×60mm – taller can, same Ø35 footprint, check chassis clearance before fit

Replacement Notes

• Same Ø35 + 10mm pitch → drop-in by hole pattern; verify height.
• Going from 85°C LQ to 105°C GG/GU is safe upgrade (longer life, lower ESR).
• Never swap polarized snap-in into signal/coupling path.
• Observe polarity: reverse connect = vent rupture.

Condition

100% brand new, dry storage, no bulge/no leak, leads straight. RoHS series on request.