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50v Digital Transistors Bias Resistor Built
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THE SMD CODEBOOK - Sphere
www.sphere.bc.caDigital Transistors (dtr) These are transistors with built -in resistors. Some have one resistor between base and emitter, others in series with the base. Many others have both. To keep things simple, the series resistor is called R1 and the base emitter resistor is called R2. If both are present, then two values are given, R1 first.
PDTC114E series NPN resistor-equipped transistors; R1 = 10 ...
assets.nexperia.comseries in digital applications Control of IC inputs Switching loads Symbol Parameter Conditions Min Typ Max Unit VCEO collector-emitter voltage open base - - 50 V IO output current - - 100 mA R1 bias resistor 1 (input) 7 10 13 k R2/R1 bias resistor ratio 0.8 1.0 1.2