PN2222 Vs. 2N2222: They Are Equivalents In Most Cases
Bipolar Transistors - BJT NPN Silicon
PN2222 and 2N2222 are both NPN bipolar junction transistors, and they are interchangeable under most circumstances. The article is going to introduce their similarity and differences.

Electronics: Why do the 2N2222 and PN2222 avalanche differently?
PN2222 Overview
The PN2222 is a popular NPN bipolar junction transistor that is used for common low-power intensification or swapping circuits. It is designed for low to intermediate current, modest power, and intermediate voltage, and it may operate at a moderately higher speed.
2N2222 Overview
The 2N2222 is a typical NPN bipolar junction transistor (BJT) used in low-power amplifying or switching applications. It is intended for low to medium current, low power, medium voltage, and relatively fast operation. It was originally created in the TO-18 metal container shown in the image.
What Is 2N2222 Used For?
The 2N2222 is a typical NPN bipolar junction transistor (BJT) used in low-power amplifying or switching applications. It is intended for low to medium current, low power, medium voltage, and relatively fast operation. It was originally created in the TO-18 metal container shown in the image.
PN2222 Pinout

2N2222 Pinout

PN2222 CAD Model
Symbol

Footprint

2N2222 CAD Model
Symbol

Footprint

3D Model

PN2222 Equivalents
| Part Number | Description | Manufacturer |
| PN2222TFTRANSISTORS | 600mA, 30V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-92, LEAD FREE, TO-92, 3 PIN | Rochester Electronics LLC |
| PH2222TRANSISTORS | Transistor, | North American Philips Discrete Products Div |
| PN2222-AMMOTRANSISTORS | TRANSISTOR 600 mA, 30 V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-92, BIP General Purpose Small Signal | NXP Semiconductors |
| PN2222/J18ZTRANSISTORS | 500mA, 30V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-92 | Texas Instruments |
| PN2222-T/RTRANSISTORS | TRANSISTOR 600 mA, 30 V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-92, BIP General Purpose Small Signal | NXP Semiconductors |
| PN2222/D81ZTRANSISTORS | 500mA, 30V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-92 | Texas Instruments |
| PN2222TFRTRANSISTORS | 600mA, 30V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-92, LEAD FREE, TO-92, 3 PIN | Rochester Electronics LLC |
| PN2222TARTRANSISTORS | Small Signal Bipolar Transistor, 0.6A I(C), 30V V(BR)CEO, 1-Element, NPN, Silicon, TO-92, LEAD FREE, TO-92, 3 PIN | Fairchild Semiconductor Corporation |
| PN2222/D74ZTRANSISTORS | 500mA, 30V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-92 | Texas Instruments |
| PN2222/D28ZTRANSISTORS | 500mA, 30V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-92 | Texas Instruments |
The Electrical Characteristics Of PN2222 And 2N2222
| PARAMETER | SYMBOL | PN/2N2222 | |
| MIN | MAX | ||
| Collector-Snitter Saturation | vCE(sat)* | 0.4 | |
| Voltage | 1.6 | ||
| Base-Dnitter Saturation Voltage | vBE(sat)* | 1.5 2.6 | |
| D.C. Current Gain | hFE * | 100 | 500 |
| Current Oain-Bandwidth Product | 250 | ||
| Collec Capac it ance | Cob | 8 | |
| Emitter-Base Capacitance | Cib | 25 | |
| Collector-Base Time Constant | Cgbb' | ||
| Noise Figure | NF | ||
| Input Impedance | hie・ | ||
| Voltage Feedback Ratio | hre | ||
| Small Si(<nal Current Gain | hfe | ||
| Output Admittance | h°e | ||
| Delay Time | td | ||
| Rise Time | tr | ||
| Storage Time | |||
| Fall Time | tf | ||
The Differences Between PN2222 And 2N2222
From above, we can see that there are lot of similarities between them. The two components are interchangeable under most circumstances, but there are just a few differences, like the packages they use are not the same type.
How much current can a PN2222 handle?
The PN2222 is distinguished from comparable transistors by its ability to switch between high current loads of up to 800 mA. According to different datasheets, this current load could be substantially lower, although the PN2222A always manages high current loads when compared to other transistors.
What is the difference between 2N2222 and 2N2222A?
In terms of Vceo, Vcbo, and Vebo, the 2n2222A performs slightly better. However, if you do not intend to stress the part (by using higher voltages, for example), both will perform well, especially for simple switching and logic circuits. The 2n2222 component is an older style part, which may explain why it is being provided at such a low price.
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