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Q: What is description of Bc557 transistor?
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What is transistor BC557?

it is a transistor used in IR TOGGLE SWITCH. :-)


Is BC557 a sensor?

No, it's a PNP general purpose transistor.


Do Transistor have a polarity?

Transistors have many characteristics and they most certainly require voltages to be a certain polarity if they are to work properly. There are two main types of transistor: PNP and NPN. They are identical except that all polarities are reversed on one compared to the other. There are many books and online resources that describe transistors but here is a very brief note about transistor operation. Each transistor has a base, a collector and an emitter. When a small current is passed from the base to the emitter, a larger current will pass from the collector the the emitter. With an NPN transistor, the base needs to be positive with respect to the emitter and the collector also has to be positive with respect to the emitter for the transistor to work. A PNP transistor is reversed, where both the base and the collector need to be negative with respect to the emitter to operate. Therefore, transistors do indeed have a polarity, even if it is more complex that some other devices. Disclaimer: The above description of transistor operation is greatly simplified and there are operational modes that are outside the conditions described. Please don't use the above description as a definitive guide to transistor behaviour.


What is Si transistor?

A silicon transistor is a transistor made of silicon.


Is active is a cutoff region of transistor?

The active region of a transistor is when the transistor has sufficient base current to turn the transistor on and for a larger current to flow from emitter to collector. This is the region where the transistor is on and fully operating.


What is the purpose of the Unijunction Transistor?

A Unijunction Transistor is a transistor that acts solely as a switch.


What are the Similar transistor for 221334 PNP transistor?

Similar to a 2N3906 PNP transistor


How does a transistor behaviour?

how does a transistor behaviour


What is rt in electronics?

I believe that is resistor transistor technology TTL transistor transistor logic


Different between power transistor and transistor that used in small signal?

Power transistor can conduct large amount of currents through it, more than small signal transistor. power transistor has a vertical structure and small signal transistor has horizontal structure.In power transistor quasi saturation region is present which is absent in the small signal transistor. In power transistor there is a inculsion of drift layer which is not there in the small signal transistor. Power dissipation is less in power transistor and it is more in small signal transistor. b.v.polytechnic,vasai pushkar vaity.


How do you use 'transistor' in a sentence?

I can give you several sentences.I bought a transistor radio.The transistor amplified the signal.We studied the transistor in science class.


Are Tip0ff0401 transistor synonym's to 2N3055 transistor?

no is not !