EEVblog Electronics Community Forum

Electronics => Beginners => Topic started by: tecnovist on July 29, 2019, 09:03:36 am

Title: what diode to use 7
Post by: tecnovist on July 29, 2019, 09:03:36 am

cool thanks i need to polarity protect my phone  battery car charger  a its no jumper leads if i get get it round wrong way it kills it .. .i need to know the best diode to use and how it where to place it .. thanks

Title: Re: what diode to use 7
Post by: CiscERsang on July 29, 2019, 09:41:59 am

Quote from: tecnovist on July 29, 2019, 09:03:36 am

cool thanks i need to polarity protect my phone  battery car charger  a its no jumper leads if i get get it round wrong way it kills it .. .i need to know the best diode to use and how it where to place it .. thanks

https://www.vishay.com/docs/88715/sb110.pdf (https://www.vishay.com/docs/88715/sb110.pdf)


https://www.youtube.com/watch?v=IrB-FPcv1Dc (https://www.youtube.com/watch?v=IrB-FPcv1Dc)

Title: Re: what diode to use 7
Post by: Flump on July 29, 2019, 11:17:45 am

I miss Afrotechmods his videos were always easy to understand and well made.

Title: Re: what diode to use 7
Post by: Zero999 on July 29, 2019, 12:39:21 pm

Use a Schottky diode. It will drop more voltage, than a MOSFET, but is much easier to use. I'd recommend the 1N5820/1N5821/1N5822, simply because they're cheap.

https://www.vishay.com/docs/88526/1n5820.pdf (https://www.vishay.com/docs/88526/1n5820.pdf)