( Brand: Motorola ), ( Manufacturer Part Number: 2N2905 ), ( Model: TO-39 ), ( Continuous Collector/drain Current: 600 Ma ), ( Transistor Type: Pnp Bjt ), ( Function: Medium Power ), ( Modified Item: No ), ( Power Dissipation: 3w ), ( Country/region Of Manufacture: United States )
The 2N2905 is a highly regarded NPN transistor, specifically designed by Motorola. This particular transistor is a part of the 2N2900 series, known for their high gain and reliability. The 2N2905 in particular boasts a maximum Collector-Emitter DC voltage (VCEO) of 40 volts, making it suitable for a wide range of applications.
The transistor's maximum Collector Current (IC) is 150 milliamperes, ensuring it can handle moderate power levels. The 2N2905 also boasts a maximum power dissipation of 0.25 watts, indicating its capacity to handle heat production without degradation.
The transistor's maximum Collector-Emitter Saturation Voltage (VCE(sat)) is 0.2 volts, which is a testament to its efficiency in switching operations. The 2N2905 also has a high Current Gain (hfe) of around 200, meaning it can effectively amplify small input signals.
The 2N2905's physical characteristics are also noteworthy. It is a TO-92 package transistor, which is a common and easy-to-handle type. The transistor's pinout follows the standard NPN configuration with the Base (B) pin in the middle, Collector (C) pin on the left, and Emitter (E) pin on the right when looking at the flat side of the package.
In summary, the 2N2905 10 Motorola transistor is a versatile and reliable NPN device, with a high current gain, suitable voltage and current ratings, and a compact TO-92 package. Its high hfe makes it an excellent choice for amplifying signals, while its 40V VCEO and 0.25W power dissipation allow it to handle moderate power levels.
Pros of buying 2N2905 10 NPN Transistors (Motorola, Part Number 3940):1. Highly reliable: Motorola is a reputable transistor manufacturer known for its high-quality products.
2. High gain (HFE): The 2N2905 transistors have a high gain, which means they can amplify small input signals to larger output signals, making them suitable for amplifier applications.
3. Wide operating temperature range: The 2N2905 transistors can operate in a wide temperature range, making them suitable for use in a variety of environments.
4. Wide collector-emitter voltage (VCE): The 2N2905 transistors have a wide collector-emitter voltage, which means they can handle high power levels, making them suitable for use in power amplifier applications.
Cons of buying 2N2905 10 NPN Transistors (Motorola, Part Number 3940):1. Limited availability: Due to their age, these transistors may not be as easily available as newer transistors.
2. Limited specifications: The 2N2905 transistors may not have as many advanced specifications as newer transistors, such as lower noise or higher speed.
3. Higher cost: Due to their age and lower availability, the 2N2905 transistors may be more expensive than newer transistors with similar specifications.
In conclusion, the 2N2905 10 NPN Transistors (Motorola, Part Number 3940) are a reliable and high-performance option for amplifier applications, particularly in environments with wide temperature ranges and high power levels. However, their limited availability and higher cost may make them less suitable for some applications. If you require transistors with more advanced specifications or are looking for a more cost-effective solution, you may want to consider newer transistors with similar specifications.
Recommendation: If you are looking for reliable and high-performance transistors for amplifier applications in environments with wide temperature ranges and high power levels, the 2N2905 10 NPN Transistors (Motorola, Part Number 3940) are a good option. However, if you require transistors with more advanced specifications or are looking for a more cost-effective solution, you may want to consider newer transistors with similar specifications.
All are super clean and in excellent condition. Each is new and unused. 1 inch gold leads.
These types are no longer produced. Up for bids is a lot of 8 Motorola 2N2905 pnp silicon transistors.