Transistors

Transistors — New & Used

Transistors are fundamental semiconductor components that amplify or switch electrical signals, forming the backbone of modern electronics. Used in everything from power control circuits to precision instrumentation, they provide fast switching speed, low power loss, and long-term reliability. Available as BJT, MOSFET, IGBT, and JFET types, these devices ensure stable performance across a wide range of industrial and commercial applications.

At Surplus Select, we offer a rotating inventory of new and used OEM transistors from leading brands such as ON Semiconductor, Fairchild, Texas Instruments, STMicroelectronics, and Toshiba. Our parts are ideal for electronics repair, prototyping, and maintenance—offered at surplus pricing and ready to ship across the U.S.

Price Match — We match any authorized distributor on identical in-stock products, ensuring surplus savings with verified OEM quality.

Trade-In Credit — Have quality new surplus items? Trade them in for store credit toward other components you need.

Fast U.S. Shipping — Most transistor orders ship same or next business day from our U.S. warehouse to minimize project downtime.

Find Your Transistor Fast (Search-First)

Search your part number (e.g., 2N3055, IRF540N, TIP120, BC547).
No PN? Try specs: “NPN transistor 60V” or “MOSFET 100V 30A”.
Need a specific OEM? Add the brand (e.g., ON Semiconductor 2N2222 or Toshiba 2SC5200).

Applications & Use Cases

Power supply circuits: Switching and voltage regulation for industrial and commercial electronics.
Amplifiers & signal processing: Reliable performance in audio, RF, and instrumentation systems.
Automation & control panels: Motor control, signal switching, and voltage amplification.
Test equipment & prototypes: Ideal for design engineers and electronics labs.
Repair & MRO: OEM replacement parts for maintenance and restoration of existing systems.

Why Buy Transistors from Surplus Select

New & Used Options: OEM semiconductors and transistors at surplus pricing.
Trusted Brands: ON Semiconductor, Texas Instruments, Fairchild, STMicro, and Toshiba.
Trade-In Credit: Turn quality new surplus transistors into store credit for future purchases.
Fast Shipping: Most orders ship same or next business day across the U.S.