MJD Automotive Medium Power Transistors Diodes Inc. MJD Automotive Medium Power Transistors are bipolar transistors that are AEC-Q101 qualified, PPAP capable, and manufactured in IATF16949 certified facilities. Each device has a collector-emitter breakdown voltage of 50V or 100V (minimum). The Diodes Inc. MJD Automotive Medium Power Transistors come in a TO-252 (DPAK) package and are ideal for power switching or amplification applications.