{"id":90495,"date":"2024-10-04T10:00:48","date_gmt":"2024-10-04T08:00:48","guid":{"rendered":"https:\/\/botland.com.pl\/blog\/irfz44n-what-is-it-specifications-diagram-price-and-reviews-2\/"},"modified":"2026-04-08T10:48:30","modified_gmt":"2026-04-08T08:48:30","slug":"irfz44n-what-is-it-specifications-diagram-price-and-reviews-2","status":"publish","type":"post","link":"https:\/\/botland.store\/blog\/irfz44n-what-is-it-specifications-diagram-price-and-reviews-2\/","title":{"rendered":"IRFZ44N – what is it? specifications, diagram, price and reviews"},"content":{"rendered":"Reading time:<\/span> 4<\/span> min.<\/span><\/span>\t\t
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Transistors<\/a> are some of the most important semiconductor devices used in electronics – they are the basis for the internal structures of most integrated circuits.
\nHowever, in addition to integrated circuits, transistors also exist in single form, as discrete components – meet the IRFZ44N<\/a> – a single N-channel MOSFET transistor. <\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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What is and how does the IRFZ44N transistor work?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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The IRFZ44N is a Metal Oxide Semiconductor Field Effect Transistor ( MOSFET<\/strong> ), also known as a unipolar transistor because its semiconductor structure involves a single type of carrier, i.e.
\nN-type or P-type. In the case of the IRFZ44N transistor, we are dealing with an N-type channel<\/a>, where the majority carriers are electrons, on the contrary to P-type MOSFET transistors<\/a>, where the majority carriers are holes.
\nIn an N-type MOSFET transistor, none of the minority carriers participate in the current conduction.
\nTherefore, the electrical charge storage time after switching<\/strong> off is negligibly short, and thus MOSFET transistors are successfully used in electronic circuits with high switching frequencies<\/strong>.
\nA MOSFET with an N-type channel is turned on when the gate-source voltage VGS is positive with respect to ground. <\/p>\n

In power electronic circuits, MOSFET transistors act as fast switches<\/strong>.
\nThe VGS voltage must be within the lower and upper limits specified in the catalog note.
\nWhen a<\/a> MOSFET is in the conducting state, it behaves similarly to a resistor<\/a>.
\nThus, the power loss in such a transistor is proportional to the square of the drain current and the resistance between the drain and the source in the transistor’s on state.
\nThe value of this resistance increases with the drain current due to the increase in junction temperature.
\nThis results in increased power loss during conduction, and thus limits the application in high-power circuits.
\nLow-voltage MOSFET transistors have low on-state resistance, so for given voltage requirements it is better to choose power MOSFETs with the minimum possible voltage rating, taking into account the safety factor. <\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Example application of IRFZ44N MOSFET - acoustic alarm<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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N-MOSFET transistor IRFZ44N 55V\/41A - THT - 5pcs.<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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A circuit break alarm can be reasonably associated with an acoustic alarm circuit, which is triggered by<\/strong> a break in the continuity of<\/strong> an electrical circuit<\/strong>.
\nSuch an example circuit needs an auxiliary supply<\/a> voltage in the range of 9-12 V for general operation.
\nThe principle of operation of such a circuit, is as follows.
\nWhen the power supply is connected, current flows from the supply voltage potential Vcc to GND through a 33k resistor.
\nOn the other hand, when this circuit is interrupted, the current will flow from Vcc potential to the gate of the MOSFET.
\nAs a result, the MOSFET enters the conduction state<\/strong> – current flows from the drain to the source through the LED and buzzer.
\nSuch a circuit can be used as an indication of discontinuity of electrical conductors, for example, as a result of damage due to the flow of too much current. <\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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IRFZ44N - key parameters of the component<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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IRFZ44N<\/a> is a popular N-type MOSFET transistor, often used in applications related to power regulation, motor control, switching power supplies, audio amplifiers and many others.
\nAmong the most important parameters of this transistor are: <\/p>\n