MOSFETs

MOSFETs, also known as MOSFET transistors, stands for ’Metal Oxide Semiconductor Field-Effect Transistors’. MOSFETs are transistor devices which are controlled by a capacitor. The "Field-Effect" means that they are controlled by voltage. The aim of a MOSFET is to control the flow of the current passing through from the source to the drain terminals. It acts very similarly to a switch and is used for switching or amplifying electronic signals.


These semiconductor devices are ICs (integrated circuits) which are mounted onto PCBs. MOSFETs come in a range of standard package types such as DPAK, D2PAK, DFN, I2PAK, SOIC, SOT-223 and TO-220.


What are depletion and enhancement modes?


MOSFET transistors have two modes; depletion and enhancement.
Depletion MOSFETs work like a closed switch. The current passes through when no current is applied. The current flow will stop if a negative voltage is applied.
Enhancement mode MOSFETs are similar to a variable resistor and are generally more popular than the depletion mode MOSFETs. They come in n-channel or p-channel variants.


How do MOSFETs work?


The pins on a MOSFET package are the Source, Gate and Drain. When a voltage is applied between the Gate and the Source terminals, current can pass through from the Drain to the Source pins. When the voltage applied to the Gate changes, the resistance from the Drain to the Source will change too. The lower the voltage applied, the higher the resistance. As the voltage increases, the resistance from the Drain to Source will decrease.
Power MOSFETs are similar to standard MOSFETs but they are designed to handle a higher level of power.


N-Channel vs. P-Channel MOSFETs


MOSFETs are made of p-type or n-type doped silicon.


  • N-Channel MOSFETS contain additional electrons which are free to move around. They are the more popular channel type. N-Channel MOSFETs work when a positive charge is applied to the gate terminal.


  • P-Channel MOSFETS substrate contains electrons and electron holes. P-Channel MOSFETs are connected to a positive voltage. These MOSFETs turn on when the voltage supplied to the Gate terminal is lower than the Source voltage.

Where are MOSFETs used?


MOSFETs are found within many applications, such as microprocessors and other memory components. MOSFET transistors are most commonly used as a voltage-controlled switch within circuits.



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รายละเอียดสินค้า / Description ราคา / Price Channel Type Maximum Continuous Drain Current Maximum Drain Source Voltage Maximum Drain Source Resistance Maximum Gate Threshold Voltage Minimum Gate Threshold Voltage Maximum Gate Source Voltage Package Type Mounting Type Pin Count Transistor Configuration Channel Mode Maximum Power Dissipation Automotive Standard
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THB38.372
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หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SQJ431AEP-T1_GE3
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P 9.4 A 200 V 760 mΩ 3.5V 2.5V ±20 V SO-8 Surface Mount 8 Single Enhancement 68 W AEC-Q101
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หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SiRA10BDP-T1-GE3
THB12.10
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THB7.975
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N 2.25 A 30 V 90 mΩ 1.6V 0.6V ±12 V SC-70 Surface Mount 6 Single Enhancement 13.6 W AEC-Q101
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RS Stock No. 178-3667
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THB13.20
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N 12 A 60 V 20 mΩ 4V 2V ±20 V SC-70 Surface Mount 6 Single Enhancement 19 W -
RS Stock No. 178-3922
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THB14.84
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N 9 A 60 V 60 mΩ 2.5V 1.5V ±20 V SC-70 Surface Mount 6 Single Enhancement 13.6 W AEC-Q101
RS Stock No. 178-3946
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THB107.20
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THB52.20
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N 80 A 30 V 1 mΩ 1V 2.2V -12 V, +16 V 1212 Surface Mount 8 Single Enhancement 65.7 W -
RS Stock No. 178-3863
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SISC06DN-T1-GE3
THB27.52
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N 40 A 30 V 4 mΩ 1V 2.1V -16 V, +20 V 1212 Surface Mount 8 Single Enhancement 46.3 W -
RS Stock No. 178-3669
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SiAA00DJ-T1-GE3
THB10.725
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N 40 A 25 V 7 mΩ 2.5V 1V -12 V, +16 V SC-70 Surface Mount 6 Single Enhancement 19.2 W -
RS Stock No. 178-3717
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THB15.95
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P 30 A 40 V 20 mΩ 2.5V 1.5V ±20 V SO-8 Surface Mount 8 Single Enhancement 45 W AEC-Q101
RS Stock No. 178-3956
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THB26.40
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THB88.00
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RS Stock No. 178-3691
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N 60 A 30 V 4 mΩ 1V 2.1V -16 V, +20 V SO-8 Surface Mount 8 Single Enhancement 50 W -
RS Stock No. 178-3716
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THB28.60
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P 100 A 40 V 9 mΩ 2.5V 1.5V ±20 V TO-252 Surface Mount 3 + Tab Single Enhancement 107 W -
RS Stock No. 178-3710
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THB7.70
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P 10 A 30 V 30 mΩ 2.5V 1.5V ±20 V SC-70 Surface Mount 6 Single Enhancement 13.6 W AEC-Q101
RS Stock No. 178-3853
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THB13.76
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P 3.6 A 40 V 100 mΩ 2.5V 1V ±20 V SOT-23 Surface Mount 3 Single Enhancement 1.7 W -
RS Stock No. 178-3869
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THB27.52
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P 35 A 30 V 20 mΩ 2.8V 1.5V ±20 V 1212 Surface Mount 8 Single Enhancement 52.1 W -