Amazon.com: PNP NPN Transistors Kit, Three Pins Silicon Power Transistor Assorted Assortment Box Set Range 2N3904-MPS2907, 10Value,Pack of 200, by Ltvystore : Industrial & Scientific
Amazon.com: Non Contact Liquid Level Sensor Contactless Water Tank Water Level Sensor for Tank Water Level Control PNP/NPN(XKC-Y26-NPN) : Industrial & Scientific
EEEEE 30 Kinds 300pcs Assorted Type General Purpose TO92 Transistors PNP NPN Bipolar Power Transistor Assortment Kit with Individual Compartment: Amazon.com: Industrial & Scientific
Bridgold 10pcs(5pcs 2SA1943+5pcs 2SC5200) PNP NPN High Power Matched Audio Transistor Silicon Precision,3-Pin.: Amazon.com: Industrial & Scientific