Phototransistors (results: 110)

Phototransistors for every usage

Optoelectronic devices, as phototransistors are, are semiconductors which usage in today's electronics is very versatile. Due to reaction to light volume, those infrared elements may serve various functions, often being completely irreplaceable. You will find every phototransistor you may need in our offer. We kindly encourage you to get acquainted with our offer.

Phototransistors - semiconductors

Phototransistors are three-layer semiconductors consisting of:

• Emitter
• Base
• Collector

In a phototransistor, the emitter is connected to base as well as collector. A current is produced in each of these connections. In the emitter-base connection the current is higher, and in the emitter-collector lower. Current produced between emitter and base controls the current between emitter and collector. Phenomenon occurring between emitter and base controls the current between emitter and collector. However, it is not happening by producing current but by light volume. In other words, current flow in the emitter-collector connection is dependent on the volume of light that falls onto the emitter-base connection.

What is a phototransistor then?

Based on the facts mentioned above, we can state that a phototransistor is a three layered semiconductor reacting to the light volume.

Phototransistors are described as infrared elements, thus often a name infrared phototransistor can be stumbled upon. It is worth taking a closer look at what this name means. Phototransistors are semiconductors, so somewhat they serve as connectors. However, a phototransistor works as a connector, a conductor to be precise, only during a reaction to infrared waves, otherwise it remains inactive. It is worth mentioning that infrared elements are not so obvious in their operation. That is, they react not only to the presence or absence of the light, but rather to its volume. 

Infrared elements and their usage

When it comes to a classic transistor, it is used mainly for amplifying the current or also as a switch. Phototransistors on the other hand have many applications. They are extremely versatile devices, which in fact vary significantly among each other. It means that a phototransistors has to be chosen according to the device in which we plan to apply it. We offer phototransistors which can be applied in:

• Measuring devices
• Infrared detectors
• As electronic circuits connectors
• And many more

Optoelectronics as a technology branch deals with numerous and various topics. Therefore it is not surprising that phototransistors find multiple applications, e.g. as detectors but as well as isolators or just connectors. In case of any doubts during choosing suitable phototransistors, we kindly encourage you to contact our consultant.

Phototransistor - Price   

Phototransistors are characterised by simple construction, as a result, that is why they are relatively cheap. Nonetheless, prices depend on various factors, such as:

• Production quality
• Type of housing
• Manufacturer reputation
• Seller profit margin

Our offer consists of phototransistors only from renowned and proven manufacturers. We focus on the best quality in order to meet the needs of even the most demanding customers. At the same time, thanks to long-term cooperation with suppliers, we are able to negotiate beneficial prices with them, which allows us to lower the profit margin. Therefore when it comes to any phototransistor, Micros price is competitive. We kindly encourage you to get acquainted with our phototransistors stock for every budget.