20pcs SMD BJT Transistors – MMST4403 MMST5401 MMST2907A SOT-23
20pcs SMD BJT Transistors – MMST4403 MMST5401 MMST2907A SOT-23
20-Piece SMD BJT Transistor Assortment – General Purpose SOT-23 Package
Keep your electronics projects running smoothly with this convenient 20-piece pack of surface-mount BJT (Bipolar Junction Transistor) components. Each pack covers a range of popular MMST-series and MMSTA-series part numbers, making it ideal for prototyping, circuit repair, and general-purpose electronics work.
Made in Mainland China.
Compatible Part Numbers Included
- MMST4403-7-F
- MMST5401-7-F
- MMST2907A-7-F
- MMST5401Q-7-F
- MMST4401-7-F
- MMSTA64-7-F
- MMSTA55-7-F
- MMST5551-7-F
Key Features
- Package Type: SOT-23 surface-mount (SMD) – compact and PCB-friendly
- Transistor Type: Bipolar Junction Transistor (BJT) – NPN & PNP variants included
- Use: General purpose switching and amplification applications
- Quantity: 20 pieces per order
- High-Concern Chemicals: None
- Customized: Yes – available in specific part numbers as listed
Who Is This For?
Whether you're an electronics hobbyist, a PCB designer, or a repair technician, having a reliable supply of SMD BJT transistors on hand saves time and keeps your workflow uninterrupted. These components are well-suited for low-signal amplification, logic-level switching, and a wide range of digital and analog circuit designs.
Related Products You Might Like
- Electromagnetic Induction Tester – Coil & Circuit Fault Detector
- Air Compressor Pressure Gauge 0-10/0-12/0-25 Bar | DIY Tool
Learn more: OSHA on personal protective equipment
Frequently Asked Questions
Q: What is a BJT SMD transistor and what is it used for?
A: A BJT (Bipolar Junction Transistor) in an SMD (Surface-Mount Device) package is a compact electronic component used for switching and amplifying electrical signals on printed circuit boards. These MMST-series transistors in SOT-23 packages are widely used in consumer electronics, signal processing, and general-purpose circuit design.
Q: How many pieces are included and which part numbers are in this pack?
A: Each order includes 20 pieces total. The pack covers these popular part numbers: MMST4403-7-F, MMST5401-7-F, MMST2907A-7-F, MMST5401Q-7-F, MMST4401-7-F, MMSTA64-7-F, MMSTA55-7-F, and MMST5551-7-F — a versatile assortment of NPN and PNP BJT transistors.
Q: Are these components RoHS compliant or free from high-concern chemicals?
A: Yes, according to the product specifications, there are no high-concern chemicals associated with these components, making them suitable for standard electronics assembly and repair work.