2N3720

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High-current, high-speed NPN silicon switching power transistor housed in a metal TO-39 can, designed to switch heavy inductive loads cleanly at fast cycle rates with low saturatio n voltage. Equivalents: 2N3721 (complementary pairing), 2N3506, NTE128. Real-Life Examples: Industrial magnetic brake and solenoid controllers, automated warehouse motor drivers, and high-frequency pulse modulation networks. Show more