Aan Posted June 7, 2006 Report Share Posted June 7, 2006 Hi,I need help to indentify an unknown component, the component i havethe first letter is blur and it's hard to read, the others letter iseasy to read, the letter is XS08A, where X letter is blur.Please see the picture.. Quote Link to comment Share on other sites More sharing options...
hotwaterwizard Posted June 7, 2006 Report Share Posted June 7, 2006 Could this be it?BS08 Silicon Bilateral SwitchThe full Datasheet is below.CLICK HEREBS08.pdf Quote Link to comment Share on other sites More sharing options...
Aan Posted June 9, 2006 Author Report Share Posted June 9, 2006 Hi hotwaterwizard,When point A is connected to ground why is the SBS switch on ? instead when point A is connected to VCC ?And why is the SBS latch, when point A is bring back to VCC ?Thanks. Quote Link to comment Share on other sites More sharing options...
Guest Kasamiko Posted June 9, 2006 Report Share Posted June 9, 2006 Don't we have a DEAD-SHORT when SBS conduct? Quote Link to comment Share on other sites More sharing options...
Aan Posted June 9, 2006 Author Report Share Posted June 9, 2006 Hi Kamasiko,What do you mean ? Quote Link to comment Share on other sites More sharing options...
hotwaterwizard Posted June 10, 2006 Report Share Posted June 10, 2006 Well I looked at the Datasheet that I provided and here is what the Equivelent circuit looks like. It is not a dead short! It looks like the circuit switches the positive and negitive output. Quote Link to comment Share on other sites More sharing options...
Aan Posted June 14, 2006 Author Report Share Posted June 14, 2006 So this device is a SBS semiconductor ? Thanks. Quote Link to comment Share on other sites More sharing options...
audioguru Posted June 14, 2006 Report Share Posted June 14, 2006 So this device is a SBS semiconductor?Yes. It is also called a Triac. Quote Link to comment Share on other sites More sharing options...
Aan Posted June 17, 2006 Author Report Share Posted June 17, 2006 Hi all, i still don't understand how SBS works..can you explain to me the characteristic of SBS ? Quote Link to comment Share on other sites More sharing options...
audioguru Posted June 17, 2006 Report Share Posted June 17, 2006 This SBS is spec'd to conduct when the voltage across it rises to 8V without a gate signal, and less voltage with a gate signal.The PNP transistor has a small leakage current that is amplified by the NPN transistor. Then the current of the NPN transistor is amplified by the PNP transistor and the vicious circle continues and both transistors are conducting. When the current drops below 0.4mA when the AC power source passes through 0V then it stops conducting. Quote Link to comment Share on other sites More sharing options...
Aan Posted June 19, 2006 Author Report Share Posted June 19, 2006 Thanks All. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.