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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Description 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
RS Stock No. 919-0023
Mfr. Part No.IRF510PBF
BrandVishay
€0.505
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N 5.6 A 100 V 540 mΩ - 2V -20 V, +20 V TO-220AB Through Hole 3 Single Enhancement 43 W -
RS Stock No. 708-5134
Mfr. Part No.IRF510PBF
BrandVishay
€0.692
Each (In a Pack of 10)
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N 5.6 A 100 V 540 mΩ - 2V -20 V, +20 V TO-220AB Through Hole 3 Single Enhancement 43 W -
RS Stock No. 541-0862
Mfr. Part No.IRFP9240PBF
BrandVishay
€2.85
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P 12 A 200 V 500 mΩ - 2V -20 V, +20 V TO-247AC Through Hole 3 Single Enhancement 150 W -
RS Stock No. 178-0786
Mfr. Part No.IRFP9240PBF
BrandVishay
€2.096
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- - - - - - - - - - - - - -
RS Stock No. 178-0913
Mfr. Part No.IRLD110PBF
BrandVishay
€0.587
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N 1 A 100 V 540 mΩ - 1V -10 V, +10 V HVMDIP Through Hole 4 Single Enhancement 1.3 W -
RS Stock No. 301-338
Mfr. Part No.IRLD110PBF
BrandVishay
€0.688
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N 1 A 100 V 540 mΩ - 1V -10 V, +10 V HVMDIP Through Hole 4 Single Enhancement 1.3 W -
RS Stock No. 919-4498
Mfr. Part No.IRFD110PBF
BrandVishay
€0.344
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N 1 A 100 V 540 mΩ - 2V -20 V, +20 V HVMDIP Through Hole 4 Single Enhancement 1.3 W -
RS Stock No. 541-1039
Mfr. Part No.IRFD110PBF
BrandVishay
€0.70
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N 1 A 100 V 540 mΩ - 2V -20 V, +20 V HVMDIP Through Hole 4 Single Enhancement 1.3 W -
RS Stock No. 159-6516
Mfr. Part No.IRFP460BPBF
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€2.674
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N 20 A 500 V 250 mΩ - 2V -20 V, +20 V TO-247AC Through Hole 3 Single Enhancement 278 W -
RS Stock No. 787-9140
Mfr. Part No.IRFP460BPBF
BrandVishay
€3.21
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N 20 A 500 V 250 mΩ - 2V -20 V, +20 V TO-247AC Through Hole 3 Single Enhancement 278 W -
RS Stock No. 708-5159
Mfr. Part No.IRF9530PBF
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€1.09
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P 12 A 100 V 300 mΩ - 2V -20 V, +20 V TO-220AB Through Hole 3 Single Enhancement 88 W -
RS Stock No. 919-0036
Mfr. Part No.IRF9530PBF
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€0.688
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P 12 A 100 V 300 mΩ - 2V -20 V, +20 V TO-220AB Through Hole 3 Single Enhancement 88 W -
RS Stock No. 708-4884
Mfr. Part No.IRLU110PBF
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€0.264
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N 4.3 A 100 V 540 mΩ - 1V -10 V, +10 V IPAK (TO-251) Through Hole 3 Single Enhancement 2.5 W -
RS Stock No. 918-9871
Mfr. Part No.IRLU110PBF
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€0.242
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N 4.3 A 100 V 540 mΩ - 1V -10 V, +10 V IPAK (TO-251) Through Hole 3 Single Enhancement 2.5 W -
RS Stock No. 708-4730
Mfr. Part No.IRF530PBF
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€1.188
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N 14 A 100 V 160 mΩ - 2V -20 V, +20 V TO-220AB Through Hole 3 Single Enhancement 88 W -
RS Stock No. 178-0821
Mfr. Part No.IRFB9N60APBF
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€1.84
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N 9.2 A 600 V 750 mΩ - 2V -30 V, +30 V TO-220AB Through Hole 3 Single Enhancement 170 W -
RS Stock No. 541-1922
Mfr. Part No.IRFB9N60APBF
BrandVishay
€1.78
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N 9.2 A 600 V 750 mΩ - 2V -30 V, +30 V TO-220AB Through Hole 3 Single Enhancement 170 W -
RS Stock No. 708-4768
Mfr. Part No.IRFBC30APBF
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€1.35
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N 3.6 A 600 V 2.2 Ω - 2V -30 V, +30 V TO-220AB Through Hole 3 Single Enhancement 74 W -
RS Stock No. 918-9859
Mfr. Part No.IRF530PBF
BrandVishay
€0.515
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N 14 A 100 V 160 mΩ - - -20 V, +20 V TO-220AB Through Hole 3 Single Enhancement 88 W -
RS Stock No. 178-0904
Mfr. Part No.IRFU210PBF
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€0.194
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N 2.6 A 200 V 1.5 Ω - 2V -20 V, +20 V IPAK (TO-251) Through Hole 3 Single Enhancement 2.5 W -