| ??? 01/10/06 17:41 Read: times |
#106991 - Indian creation Responding to: ???'s previous message |
They were created by BEL when they were trying to phase out the germanium AC188. I use the BC640 because of the metal tab and higher Vce of ~50V, the BC188 had a lower voltage of ~15V. Makes my stock variety smaller. |
| Topic | Author | Date |
| Sourcing current to commong anode SSD. | 01/01/70 00:00 | |
| Not designed for switching purpose | 01/01/70 00:00 | |
| maybe even better | 01/01/70 00:00 | |
| Thanks for your reply erik. | 01/01/70 00:00 | |
| Oops I made serious design mistake. | 01/01/70 00:00 | |
| saturation required | 01/01/70 00:00 | |
| Try BC188 or BC640 | 01/01/70 00:00 | |
| Google fails | 01/01/70 00:00 | |
Indian creation | 01/01/70 00:00 | |
| Base resistors | 01/01/70 00:00 | |
| ULN2003 & ULN2803 | 01/01/70 00:00 | |
| Second sourced | 01/01/70 00:00 | |
| but thre aer newer "equivalents" | 01/01/70 00:00 | |
| try toyolite | 01/01/70 00:00 |