![]() A measurement of ESR (Equivalent Series Resistance) of capacitors greater than 20 nF is built in.Inductances of 0.01 mH to 20 H can be detected and measured.If it's a single diode, the parasitic capacitance and reverse current will also be measured.Up to two diodes will also be displayed with their correctly aligned symbol, pin number and voltage drop.Resistors and capacitors will be displayed with their respective symbol, pin number and value.Capacitors in the range 35pF (picofarad) to 100mF (millifarad) can be measured with a resolution down to 1 pF (0.01 pF for capacitors with lower capacity than 100 pF).Resistors below 10 Ohm will be measured with the ESR approach and a resolution of 0.01 Ohm. The measurement range is up to 50 MOhm (Megaohm). Up to two resistors will be measured with a resolution down to 0.1 Ohm.Bipolar junction transistors are detected as a transistor with a parasitic transistor (NPNp = NPN + parasitic PNP).Automated detection of protection diodes in bipolar junction transistors and MOSFETs.Measurement of hFE and base-emitter-voltage for bipolar junction transistors, also for Darlingtons.Automated detection of pin assignment, this means the device-under-test can be connected to the tester in any order.Automated detection of NPN, PNP, N- and P-channel MOSFET, JFET, diodes und small thyristors, TRIAC.Press the TEST button and wait for the result shown on the OLED display.Each pin of the component should have its unique socket number (1 to 3). Plug the component to be tested into the socket row.Connect the Transistor Tester via the Micro-USB port to a 5V power supply.In any case, the device should be disconnected from the power supply and you should be sure that there is no residual voltage. ![]() Particular care should be taken when attempting to test components mounted on a circuit. Always discharge the capacitors before connecting them to the tester! The tester can be damaged before you turn it on. A protective circuit would probably also falsify the measurement results. It should be noted that the test inputs do not have a protective circuit.
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