what kind of capacitor is this? what kind of capacitor is this? knowlittle (Materials) (OP) 10 Jan 14 09:16 It is flat and rectangle, 20 mm x 10 mm x 7 mm. Markings are "PM644J 400V?h" 6.4 microFarad capacitor. But it has 4 leads, 2 at each end. Thanks. RE: what kind of capacitor is this? MacGyverS2000 (Electrical) 10 Jan 14 12:04 A picture is worth 1,000 words here... and context for the item in question (such as what the circuit does, where it resides int he circuit, etc.) would also be useful. Dan - Owner http://www.Hi-TecDesigns.com RE: what kind of capacitor is this? mcgyvr (Mechanical) 10 Jan 14 14:25 ^^what he said.. maybe a start/run cap ??? RE: what kind of capacitor is this? Comcokid (Electrical) 10 Jan 14 17:48 From the size, value, and voltage, it sounds like a rectangular film capacitor. I do believe some are made with two leads at each end for vibration purposes. If it is potted on the bottom where the leads are, then it probably is a rectangular film. RE: what kind of capacitor is this? knowlittle (Materials) (OP) 13 Jan 14 23:19 Here is the photo. Sorry for doing it earlier. My work computer wouldn't let me attach photo. RE: what kind of capacitor is this? VE1BLL (Military) 14 Jan 14 07:49 The link that you've posted is: "...eng-tips.com/home/rust/Desktop/SAM_0026.jpg" I don't think that the link is correct.