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| Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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Identifying SMT transistor "43" SOT-23
Can anyone identify (what I believe is) a surface mount transistor
labelled as "43" ? It looks like a SOT-23 package. Possibly PNP looking at the circuit. This appears to be switching the gate voltage on a triac (switching 240V mains). The transistor itself is driven straight from a microcontroller with no limiting resistor ??? My searches match only a Schottky diode barrier - which seems unlikely. Thanks, Mark. |
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#2
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Should be a DTC143XK
"Mark Street" wrote in message ... Can anyone identify (what I believe is) a surface mount transistor labelled as "43" ? It looks like a SOT-23 package. Possibly PNP looking at the circuit. This appears to be switching the gate voltage on a triac (switching 240V mains). The transistor itself is driven straight from a microcontroller with no limiting resistor ??? My searches match only a Schottky diode barrier - which seems unlikely. Thanks, Mark. |
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#3
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tlw wrote:
Should be a DTC143XK Thanks for that. The pinout for the DTC143XK seems consistent with the circuit. Mark. |
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