68PR500KLFTB vs 68PR500KLF vs 68PR500LF

 
PartNumber68PR500KLFTB68PR500KLF68PR500LF
DescriptionTrimmer Resistors - Through Hole 1/2W 500K Ohms 10% MULTI TURNTrimmer Resistors - Through Hole 1/2W 500K Ohms 10% MULTI TURNTrimmer Resistors - Through Hole 500 ohm 10% 3/8" Squ
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