Hi guys,
I'm trying to find a reasonably priced 22uF capacitor that can handle at least 640 mA (RMS) current. I'd be looking for a rating of 100V or higher. This is my first time really dealing with capacitors that have some pretty tight specifics, so I'm not too sure. This capacitor is for the coupling capacitor of a SEPIC converter. I looked at electrolytics first, but it seems that these guys can't take large ripple currents very well; nowhere near the minimum that I require.
Ceramics seem like the next best route, but they're very expensive! I've temporarily settled on 3 of these guys:
http://ca.mouser.com/ProductDetail/AVX/SK051E685ZAA/?qs=VXdo/Jq4YRQKVrDwhYLrjg==
Is this reasonable? I wasn't able to find any information on RMS current capabilities. It seems rather expensive too, but I don't mind spending the money if it's what I really need.
Just wondering if you had any suggestions on the capacitor selection. I was also wondering if there is a "rule of thumb" for the current handling capabilities of the average ceramic cap.
Thanks
I'm trying to find a reasonably priced 22uF capacitor that can handle at least 640 mA (RMS) current. I'd be looking for a rating of 100V or higher. This is my first time really dealing with capacitors that have some pretty tight specifics, so I'm not too sure. This capacitor is for the coupling capacitor of a SEPIC converter. I looked at electrolytics first, but it seems that these guys can't take large ripple currents very well; nowhere near the minimum that I require.
Ceramics seem like the next best route, but they're very expensive! I've temporarily settled on 3 of these guys:
http://ca.mouser.com/ProductDetail/AVX/SK051E685ZAA/?qs=VXdo/Jq4YRQKVrDwhYLrjg==
Is this reasonable? I wasn't able to find any information on RMS current capabilities. It seems rather expensive too, but I don't mind spending the money if it's what I really need.
Just wondering if you had any suggestions on the capacitor selection. I was also wondering if there is a "rule of thumb" for the current handling capabilities of the average ceramic cap.
Thanks