BC547 TRANSISTOR PINOUT PROFESSIONAL

In some data sheets, “PbF” is indicated at the end of the marking, e.g. For example Vishay, which no longer manufactures irfz44n transistors, but has other similar devices such as IRFZ44, IRFZ44R, IRFZ44S, IRFZ44SL. Currently, many independent manufacturers continue to produce their products with the prefix IRF, so in the market of modern radio components you can find other manufacturers producing products with the same symbols in the designation. In 2007, IR sold MOSF technology to Vishay Intertechnology, and in 2015 another company (Infineon Technologies) took over IR. The prefix IRF is a reminder of the origin of the specimen in the factories of the famous American company International Rectifier (IR). For example, the MOSFET in question can drop from 49A to 35A when the ambient temperature increases to 100☌. For example, about the possibility of application in different temperature regimes. Having only studied these parameters, you can already make a decision about their use in your circuits. The device is tested at ambient temperatures of up to 25 degrees, unless the manufacturer specifies otherwise. In them, the manufacturer writes information about the limits of the operation of radio components, at which they can work. Usually, the maximum permissible values are stated at the beginning of the datasheet. These semiconductor devices have a gate separated from the silicon substrate by the thinnest dielectric layer (approximately 0.1 micrometer). These transistors are subdivided into induced-channel and embedded-channel devices. MDM is the first letters of the words metal, dielectric, and semiconductor. In some technical descriptions, the name of a MOS (or mosfet) gate-insulated transistor may begin with the acronym TIR.

Drain channel resistance (R DSon) – 5 mOhm.

The maximum drain-source voltage (V DSS) is 55 V.

The IRFZ44N is characterized by the following basic parameters (at temperatures up to +25 degrees): But even experienced designers usually only need to know some basic values to start using the device in their electronic circuits.

BC547 TRANSISTOR PINOUT PROFESSIONAL

The entire list of MOSFET transistor parameters is not even specified in the datasheet, as only professional developers would need it. Under the International Rectifier brand there are examples in D 2PAK and TO-262 (irfz44ns, irfz44nl) packages, pin assignment is similar to TO-22. The middle pin is the drain (D), electrically connected to the built-in heat sink. The pin assignment of irfz44n, when looking at the front side, is as follows: gate (G) on the left, source (S) on the right. The most widespread rfz44n was in the plastic package TO220 with a screw fixing hole, developed specially for discrete power field effect transistors by International Rectifier. All the graphic symbols are placed in a circle, symbolizing the body of the device. There is a so-called “parasite” diode in the designation, it is connected to the source with the anode. The gate, which regulates the channel resistance, is designated by the letter Z (G-gate).

Channel leads are designated by letters: C-drain (D-drain), I-source (S-source).

The arrow pointing to the dotted line indicates the electronic conductivity of the device. The type-n channel is drawn with a dotted line, between the source and drain lines adjacent to it.

Bc547 transistor pinout