Attach an inflated balloon to the end of the straw that is present on the top of the bottle. Make a grooving on the top of the plastic bottle and fix a straw in the hole in such a way that a portion of straw is present on the top, while the rest part of the straw lies inside the bottle. Attach four bottle caps to the ends of the straws with the help of glue.
Cut a straw in half, insert both the straw pieces into the pair of grooves. First of all, place the bottle horizontally on the table and make two pairs of grooves on the curved surface of the bottle near the opening and the base. The main items required to make a balloon car include one plastic bottle, two straws, four bottle caps, one balloon, and glue. Note: Some companies call 2N2222 transistor "2N2222A' now and manufactures 2N2222A only.A balloon car is one of the simplest physics project that one can make at home with the help of easily available objects. Due to this reason, the current rating of 2N2222A is slightly lower than 2N2222.ĭue to different packaging, their pinout also differs, as shown below. 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 also.
It’s important to note that both transistors have their updated versions with alphabet ‘A’ at the end i.e, 2N2222A and PN2222A What are 2N2222 and 2N2222A Transistors?īoth transistors are from the same family but the 2N2222A has higher Maximum absolute ratings than 2N2222. The other absolute maximum ratings are similar. PN2222 is the TO-92 plastic version of 2N2222, hence ‘P’ in PN2222.ĭue to the plastic enclosing, the collector power dissipation and storage temperature ratings of PN2222 is less than 2N2222.
This table compares the specs of 2N2222 variants Note: These value may vary according to the manufacturer. Here are the differences between all four of them in a tabular form: Parameter
Due to this, there is a lot of confusion among beginners regarding which one to choose and what’s the difference.īut in this post, we are going to put an end to this confusion once and for all by comparing 2N2222 VS PN2222 VS 2N2222A VS PN22222 in detail. But there are many variants of this transistor in the market, mainly 2N2222A, PN2222, and PN2222A. 2N2222 is one of the most popular and commonly used transistors in electronics projects.
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