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Is electrolytic capacitor and alternative forTantalum ??

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boiler95

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hi Guys,

i have one doubt. I'm building a unipolar stepper driver. (Linistepper). It required a 10uF, 25V Tantalum Capacitors, and 2.2uF, 35V Tantalum. I'm not finding Tantalum capacitor type. Is it fine if i use a Electrolytic type ? Will i have any issues ?

Thanks and Regards,
Srivatsa
 

picgak

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generally low uf electrolitic cap has High ESR, you have to search for High quality Electrolitics if you want to use one
 

jiripolivka

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Tantalum capacitors are also electrolytic devices; other electrolytics use aluminum as the base material.
For the application like yours, the switching process is slow so any electrolytic might work. The IC or semiconductor devices used in the driver may be sensitive to a leakage, this is why tantalum capacitors are often preferred.
 

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