ITEM NAME:Multifunctional Power Transistor Amplifier Transistor for Charger Set of 370 Description: - Transistor is a basic semiconductor device that control current, which can also be used as a non-contact switch. - Applicable to all kinds of switching power supply, adapter, charger, electrical products power . - There are total 370 pieces of transistors in this set which will meet your basic needs. - All transistors are well packed and assorted in a transparent box for convenient storage. - Each transistors is clear marked so you can easily identify which type of transistors you need. - The best accessories for Maintenance works, installation, student study. Specification: - Material: Silicone, Plastic, Brass - Color: Black - Box Size: Approx. 180x100x20mm/7.08x3.94x0.79inch - Type: PC817, 13001, 13002, 13003, 13005, 13007, 4N60, S8050, S8550, S9014, C945 Package Included: 370 pieces Power Transistors Note: Pls allow an error of 1-3mm due to the difference of manual measurement..370 pieces Power Transistors. - Each transistors is clear marked so you can easily identify which type of transistors you need. - Color: Black. - The best accessories for Maintenance works, installation, student study.