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
BOJACK 5 Pairs 2SA1943 2SC5200 Amplifier Transistor PNP NPN High Power Black Audio SiliconTransistor TO-3PL (Pack of 10 pcs): Amazon.com: Industrial & Scientific
Transistor Assortment, Npn Transistor Transistors Assortment Kit for Industry for Plug Transistor for PNP Transistor for 2n3904 Npn Transistor: Amazon.com: Industrial & Scientific
NTE Electronics NTE88MCP NPN/PNP Silicon Transistors for High Power Audio, Disk Head Positioner, to-3 Package, 10 Amps Current, 250V Collector-Emitter Voltage, Complementary Matched Pair: Amazon.com: Industrial & Scientific