HellasTechn
- Apr 14, 2013
- 1,579
- Joined
- Apr 14, 2013
- Messages
- 1,579
Good day everyone !
Lately i had many problems with smd devices, my main issue is to identify them so i can measure them. To be more specific, all PCB's use theese SOT-23 smd devices. I have come across a large number of markings on them and honestly i find it very hard to identify them. Today i was repairing a really cheap 18650 battery charger (had nothing better to do) and i see this SOT-23 marked Y1, so i Googled Y1 sot-32 and find this page : http://www.s-manuals.com/smd/y1 that says sot-32 Y1 is a zener diode. BUT here on this site http://www.hz-dz.net/UploadFiles/20095279518624.pdf i see a sot-32 Y1 transistor.
So what is going on with theese smd devices ? how can we positively identify them since there is nothing on them to even suggest the manufacturer ?
Lately i had many problems with smd devices, my main issue is to identify them so i can measure them. To be more specific, all PCB's use theese SOT-23 smd devices. I have come across a large number of markings on them and honestly i find it very hard to identify them. Today i was repairing a really cheap 18650 battery charger (had nothing better to do) and i see this SOT-23 marked Y1, so i Googled Y1 sot-32 and find this page : http://www.s-manuals.com/smd/y1 that says sot-32 Y1 is a zener diode. BUT here on this site http://www.hz-dz.net/UploadFiles/20095279518624.pdf i see a sot-32 Y1 transistor.
So what is going on with theese smd devices ? how can we positively identify them since there is nothing on them to even suggest the manufacturer ?