Sell 10pcs/lot IRF510 IRF520 IRF540 IRF640 IRF740 IRF840 LM317T Transistor TO-220 TO220 IRF840PBF IRF510PBF IRF520PBF IRF740PBF LM317 best price

✨Welcome to WinApple Electronic！✨ 👍 We are a professional factory from Shenzhen, China 🕶 We Promise 🕶 ✔✔✔Manufacture only the best consumer goods and ensure the highest quality possible. 🕶 Our Scope of Bbusiness 🕶 ✔✔✔Auto IC, Digital to Analog Circuit, Single Chip Microcomputer, Photoelectric Coupling, Storage, Three-terminal Voltage Regulator, SCR, Field effect, Schottky, Relays, Resistors Capacitors , Light Tube, Connectors, and other One-stop Supporting services!