High-Reliability MPSA42 NPN Transistor Pack (100 Pieces)
Elevate your electronics projects with the MPSA42 (A42) NPN Bipolar Junction Transistor (BJT). Designed for general-purpose switching and amplification, this TO-92 package component is an essential addition to any hobbyist or professional engineer’s toolkit. Whether you are building logic circuits, driving LEDs, or working on power supply regulation, the MPSA42 delivers consistent performance and robust durability.
Key Features & Specifications
- Package Type: TO-92 (TO92) – Compact and easy to solder on both through-hole and PCB layouts.
- Transistor Type: NPN Bipolar Junction Transistor (BJT).
- High Voltage Capability: Supports a Collector-Emitter Voltage ($V_{CEO}$) of up to 300V, making it suitable for higher-voltage applications.
- Current Rating: Handles a Collector Current ($I_C$) of up to 500mA, providing ample power for common circuit tasks.
- Value Pack: Includes 100 units, ensuring you have sufficient stock for multiple projects or prototyping phases.
Why Choose the MPSA42?
The MPSA42 is a versatile workhorse in the world of electronics. Its high voltage rating distinguishes it from standard low-voltage transistors, allowing for greater flexibility in circuit design. With a standard TO-92 footprint, it integrates seamlessly into breadboards and custom PCBs. The consistent pinout (EBC: Emitter, Base, Collector) ensures reliable identification and installation, reducing errors during assembly.
Common Applications
These transistors are widely used in:
- Switching circuits and relay drivers.
- LED and display drivers.
- Audio amplification stages.
- Power supply circuits and voltage regulators.
- General-purpose signal amplification.
Note: Please verify the specific electrical parameters against your circuit requirements. While this listing focuses on the MPSA42, the product title references other MPSA series transistors (MPSA06, MPSA13, etc.). Ensure you are ordering the specific part number required for your project.
Price: Original price was: $ 6.84.$ 2.29Current price is: $ 2.29.

