The Peak Atlas DCA55 is great for automatically identifying the type of semiconductor on the test leads as well as the pinout and many other parameters. Supports transistors MOSFETs, JFETs (gate pin only can be identified), diodes, LEDs and lots more. Automatically identifies type of component, pinout and other important parameters. Now features transistor leakage measurement and Germanium/Silicon identification. Component Support Bipolar transistors (NPN/PNP inc Silicon/Germanium) Darlington transistors (NPN/PNP) Enhancement mode MOSFETs (N-Ch and P-Ch) Depletion mode MOSFETs (N-Ch and P-Ch) Junction FETs (N-Ch and P-Ch). Only gate lead identified Diodes and diode networks (2 and 3 lead types) LEDs and bi-colour LEDs (2 lead and 3 lead types) Low power sensitive Triacs and Thyristors (