#547b transistor series#

The BC547 is an NPN transistor while BC557 is a PNP transistor. The major difference between these two transistors is their type. The company was founded in 1999 and is headquartered in Phoenix, Arizona. What is difference between BC547 and BC557? ON Semiconductor is a publicly traded company that designs, develops, and manufactures a wide range of semiconductor products for various applications, including automotive, computing, consumer, industrial, and communications markets.

It has maximum output current of only 100mA and available in TO-92 package. It is an NPN BJT stands for bipolar junction transistor. Please visit the page BC547 VS BC548 of our site to find more details on that.īC547 is not a MOSFET.

#547b transistor series#

What is the difference between BC547 and BC548?īoth the transistors are of same series and NPN type but there is slightly difference between the two. So we have come to a conclusion that we can use BC546 transistor in the placeBC546 in all conditions and we can also use BC547 transistor in the place of BC547 in most conditions but only in one condition we cannot use it when the load voltage is upto 45V. But most of the times they are used in circuits that works under 24V such as in 3V, 5V, 6V, 9V, 12V, 15V, 18V circuits so this will not be a problem and you can still replace it with BC547. If the load that is derived with the BC546 transistor is upto 45V then you cannot use it in the place of BC546 because BC546 has higher collector to emitter voltage of 65V. Now in this condition you can still use the BC547 instead of BC546 in most of the conditions but in only one condition you cannot use it without knowing the actual voltage the load is driving. But in this case the BC546 has higher collector to emitter voltage as compare to BC547 so you can easily replace it with BC547 in any condition whether it is use as a switch or amplifier or for any other purpose. The BC547 also has almost same ratings, the only difference is their collector-emitter voltage. Looking at the above ratings and characteristics chart the BC547 has collector-emitter voltage is 65V, Collector current is 100mA, total device dissipation is 625mW, DC current gain is 110 to 800 and the transition frequency (fT) is 300MHz. Ratings & Characteristics Comparison : Ratings & Characteristics The first pin of both the transistors is “Collector”, second is “Base” and the third is “Emitter”. As you can see in the pin comparison image above there is no difference between the pins of them.