You can easily find these transistors in your local electronics store.In this arduino based project, we are going to build a temperature-controlled fan using Arduino. Due to its number of advantages and low cost, the TO-92 package of P2N222A has become the most used and cost-effective transistor in electronics. This transistor has several variants collectively called as “2N2222 type” and they are identical to the original 2N2222 transistor in terms of operation and functionality.Īmong these transistors, P2N222A is the main transistor, which is available in the TO-92 package made of either plastic or epoxy. Given below is the datasheet of the 2N2222A transistor in the TO-92 package:ĭownload P2N2222A TO-92 package datasheet Given below is the datasheet of the 2N2222 transistor in the TO-18 Metal can package: The applications of the 2N2222 transistor are : small speaker in electronics projects 2n2222 Applications.This feature makes it ideal for electronics projects like controlling high-power LEDs, relays, high-power transistors, and ICs. Other differences between both transistors are given below: Spec 2N2222 BC547 Collector to Base voltage 60V 50V Collector to Emitter voltage 30V 45V Emitter to Base voltage 5V 6V Maximum collector current 800mA 100mA DC Gain 75-300HFe 110-800HFe Thermal resistance 146k/w 83.3☌/w Transition frequency 250MHz 300MHz Noise figure 4db 10db This table show differences between BC547 and 2N2222ĢN2222 is used in a variety of electronic projects due to its excellent features like a larger collector current 600mA. This affects the circuit while operating at a higher frequency. The input and output capacitance of 2N222 is slightly higher than BC547.
Are there any differences between 2N2222 and BC547 Transistor?īetween BC547 & 2N2222, there are minor changes in output and input capacitance. Although using an equivalent transistor requires a detailed comparison, the BC547 is still a good alternative to 2N2222. BC547 transistor is considered the best equivalent of 2N2222 & can work well in your projects. Given below is the list of transistors that are equivalent to 2N2222 and can be used as a replacement. Which transistors are equivalent to 2N2222? Therefore, it is important to refer to the datasheet for the exact part number and manufacturer. The exact specifications depend on the manufacturer, case type, and variation. The technical specifications of 2N2222 in TO-18 metal packaging and 2N2222A transistor in TO-92 packaging are given below: Spec 2N2222A 2N2222 Power Dissipation(T C = 25☌) 1.5 1.2W DC Current Gain (hFE) 30-300 30-300 Operating Temperature Range -55 to 150☌ -65 to 200☌ Continuous Collector Current (I C) 0.6 A 0.8 mA Collector-Base Voltage(V CB) 75 60V Emitter-Base Voltage(V EB) 6 5V Collector-Emitter Voltage(V CE) 40 30V Input Capacitance(C I) 25pF 30pF Output Capacitance(C O) 8pF 8pF Transistor type NPN NPN Package TO-92 TO-18 Mounting Type Through-hole Through-hole Transition frequency(Ft) 250MHz This table shows the technical specifications of the 2N2222 Transistor The Collector to Base, Emitter to Base, and Collector to Emitter voltage ratings of 2N2222 and 2N2222A are 60V, 30V, 5V and 75V, 40V, 6V respectively.Īlso, the 2N2222 comes in metal packaging whereas the 2N2222A is available in TO-92 plastic enclosure only.ĢN2222A is a better option considering its higher ratings, low cost, and TO-92 packaging. Pin descriptionĢN2222 VS 2N2222A: What’s the difference?īoth are similar types of transistors but the 2N2222A has higher Maximum absolute ratings than 2N2222. This pin act as an outlet and the current comes out of the transistor from here. 2 Base This pin controls the transistor biasing. Original 2N2222 Pinout(TO-18 Package) Pin Type Function 1 Emitter This pin act as an inlet as the current enters the transistor from here.
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