MPSA05 is a BJT from the NPN family, designed mainly for general-purpose amplification and switching purposes. This transistor’s specifications allow it to be used in various applications. It can also be used practically in any application that fits its specifications. This transistor can be replaced widely with 2N3904, BC337, 2N2222, etc. MPSA05 transistors can drive up to 500mA load whenever used as a switch and are sufficient current to drive different components within electronic circuits like LEDs, relays, high-power transistors, etc. This transistor can also be used as an amplifier to drive a speaker. So, this article discusses an overview of the MPSA06 transistor, its specifications, and its applications.
What is MPSA06 Transistor?
MPSA06 is an NPN-type, general-purpose bipolar junction transistor available in different packages like TO-92, SOT-23 & SOT-223. This general-purpose transistor can be used for different switching & amplification purposes within electronic circuits.
This transistor’s maximum collector current is 0.5A or 500mA, so is used to switch different loads that fall below 0.5A. The maximum CE voltage is 80V so this transistor drives upto 80V load. This transistor’s minimum CE voltage is 0.25V only which is a perfect saturation voltage if this transistor is used as a switch.
The necessary base current to drive a 100mA load must be 10mAmps with 0.25Volts. Similarly, to drive a 500mAmps load current, 50mAmps current must be fed toward the transistor’s base terminal. In addition, the highest 625mW collector dissipation & 100 DC gain also make this transistor utilized as an amplifier for mainly different kinds of signal amplifications within electronic circuits.
While looking for a suitable transistor for your application based on a few factors, it is very important to look into a few points on How to Select a Transistor.
MPSA06 Transistor Pin Configuration:
The pin configuration of the MPSA06 Transistor is shown below. This transistor includes three pins which are discussed below.
MPSA06 Transistor Pin Configuration
- Pin-1 (Emitter): The charge carriers Drain out throughout this terminal and are connected normally to GND.
- Pin-2 (Base): This terminal controls the transistor biasing by turning ON/OFF the transistor.
- Pin-3 (Collector): It collects the charge carriers emitted from the emitter and is connected normally to the load.
Features & Specifications:
The features and specifications of the MPSA06 transistor include the following.
- It is an NPN type general purpose transistor.
- This transistor includes three terminals.
- It is available in three packages; To-92, SOT-23 & SOT-223.
- Its DC gain or hFE is 100.
- The continuous collector current or IC is 500 mAmps.
- Its collector-emitter voltage or VCE is 80V.
- Its collector to base voltage or VCB is 80V
- The transition frequency is 100MHz.
- The maximum collector current or IC is 500mA.
- Collector to emitter voltage maximum or VCE is 80V.
- Collector to base voltage or VCB is 80V.
- The emitter to base voltage or VEBO is 5V.
- Collector dissipation maximum or Pc is 625 mW.
- Its maximum storage and operating temperature must be -55 to +150 Centigrade.
Equivalent & Complementary Transistors
Equivalent MPSA06 transistors are; 2N7051, MPSA28, 2SC4145, MPSA29, BC538-10, BC538, BC538-16, 2N5551, BC538-25, BC537, 2N5550, 2N5833, 2N5831, 2SC2036, 2N5832, 2SC4145, 2N5830, BDB01D, MPSL01 and 2N2405. Complementary MPSA06 transistors are PNP MPSA56.
Replacing a suitable transistor in any circuit based on requirement is very important. To know how to replace it -> Replacing Transistors in Electronic Circuits: Factors and Considerations.
How to use the MPSA06 Transistor safely in a Circuit for Long Run?
To use the MPSA06 transistor very safely in a circuit for the long run, we suggest always using this transistor at least below 20% of its maximum ratings. This transistor’s maximum collector current is 500mAmps so do not drive any load > 400mAmps & the load voltage max should be < 64V. So, do not operate or store this transistor in temperatures < -55 degrees centigrade & > +150 degrees centigrade. Always connect a transistor to a base terminal of the transistor.
LED Driver Circuit with MPSA06 Transistor for Mini Flashlight
A single LED cannot be connected directly to 1.5 Volts battery and it does not provide maximum light efficiency or much brightness. To acquire the highest light from the light-emitting diode, we require an LED driver circuit to enhance the 1.5V input to high power. So an LED diver circuit with an MPSA06 transistor is designed for a mini flash light which is shown below.
The required components to make this simple LED driver circuit mainly include a 1.5V battery, MPSA06 transistor, LED, 10nF capacitor, 5.6-kilo ohms resistor, and L1= L2 = 100uH inductors. Connect the circuit as per the diagram shown below.
LED Driver Circuit with MPSA06 Transistor
Working
Generally, LED requires more power to produce more light, thus we need to improve the 1.5 volts to a higher current. So this can be done by using this simple led driver circuit. This circuit is designed with an MPSA06 NPN transistor & 100 uh inductor coils. So all these connected components will increase the voltage & current toward the output part of the circuit. Therefore, the LED connected to the circuit will glow extremely bright.
Connecting a base resistor to the base terminal of the transistor is mandatory to avoid it being damaged. On how to choose –> Choosing Base Resistance for Transistors in Electronic Circuits.
Advantages & Disadvantages
The advantages of the MPSA06 transistor include the following.
- These transistors have relatively high gain, so they can amplify currents very effectively.
- They have less noise, so they perform very well in sensitive-to-noise applications.
- These are designed for mainly optimal automated board assembly.
- Its package size is small.
- Its collector-to-emitter voltage rating is higher, so it handles somewhat higher voltages in between emitter and collector terminals.
The disadvantages of the MPSA06 transistor include the following.
- This transistor has a lower maximum collector current as compared to the BC547 transistor.
- Ensure that it can handle the present requirements of your project.
- This transistor might have a less usable frequency range as compared to particularly designed transistors for RF applications.
- It is very difficult to trace out defective ones due to their tiny size. So, it is very hard to unsolder & replace them with new ones.
- Its manufacturing methods are very complex and need a very clean room environment.
- It does not work as powerfully as an electrical or mechanical switch (or) relay.
Applications
The applications of the MPSA06 transistor include the following.
- MPSA06 is a general-purpose transistor, used in a wide range of applications that falls under its specifications.
- If this transistor is used as a switch then it drives upto 500mA loads like; LEDs, relays, ICs, high-power transistors, etc.
- This transistor can also be used as an amplifier within audio amplifier circuits & also other electronic signal amplifications.
- The 100MHz transition frequency of this transistor makes it easier to use in RF circuits.
- It is used to switch loads <500mAmps.
- This transistor can also be used in Darlington pairs, RF applications, audio signal amplification, computer circuits, telecommunication, etc.
- This transistor is the perfect choice for class B and push-pull amplifier circuits. It can also be used to switch low-power-based devices.
Please refer to this link for the MPSA06 Transistor Datasheet.
Thus, this is an overview of the MPSA06 Transistor, pin configuration, specifications, circuit, working, and its applications. This is an NPN type general purpose transistor including a maximum 100 gain value which makes this transistor appropriate for amplifier applications. Here is a question for you, what is an MPSA42 transistor?