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 Package Type Mounting Type Pin Count Maximum Gate Source Voltage Channel Mode Maximum Gate Threshold Voltage Minimum Gate Threshold Voltage Maximum Power Dissipation Transistor Configuration Number of Elements per Chip
RS Stock No. 162-9709
Mfr. Part No.C2M0160120D
BrandWolfspeed
MYR55.827
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N 19 A 1200 V 196 mΩ TO-247 Through Hole 3 -5 V, +20 V Enhancement 2.5V 2.4V 125 W Single 1
RS Stock No. 904-7348
Mfr. Part No.C2M0160120D
BrandWolfspeed
MYR47.22
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N 19 A 1200 V 196 mΩ TO-247 Through Hole 3 -5 V, +20 V Enhancement 2.5V 2.4V 125 W Single 1
RS Stock No. 809-8991
Mfr. Part No.C2M0080120D
BrandWolfspeed
MYR120.55
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N 31 A 1200 V 208 mΩ TO-247 Through Hole 3 -10 V, +25 V Enhancement 3.2V 1.7V 208 W Single 1
RS Stock No. 919-9749
Mfr. Part No.C2M0080120D
BrandWolfspeed
MYR93.179
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N 31 A 1200 V 208 mΩ TO-247 Through Hole 3 -10 V, +25 V Enhancement 3.2V 1.7V 208 W Single 1
RS Stock No. 915-8836
Mfr. Part No.C3M0065090D
BrandWolfspeed
MYR58.80
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N 36 A 900 V 78 mΩ TO-247 Through Hole 3 -8 V, +18 V Enhancement 2.1V 1.8V 125 W Single 1
RS Stock No. 162-9712
Mfr. Part No.C3M0065090D
BrandWolfspeed
MYR70.806
Each (In a Tube of 30)
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N 36 A 900 V 78 mΩ TO-247 Through Hole 3 -8 V, +18 V Enhancement 2.1V 1.8V 125 W Single 1
RS Stock No. 145-7049
Mfr. Part No.C3M0120090D
BrandWolfspeed
MYR32.71
Each (In a Tube of 30)
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N 23 A 900 V 155 mΩ TO-247 Through Hole 3 -8 V, +18 V Enhancement 3.5V 1.8V 97 W Single 1
RS Stock No. 916-3876
Mfr. Part No.CAS300M17BM2
BrandWolfspeed
MYR5,186.71
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N 325 A 1700 V 20 mΩ Half Bridge Panel Mount 7 -10 V, +25 V Enhancement 2.3V 1.8V 1.76 kW Series 2
RS Stock No. 162-9722
Mfr. Part No.CAS300M17BM2
BrandWolfspeed
MYR7,201.863
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N 325 A 1700 V 20 mΩ Half Bridge Panel Mount 7 -10 V, +25 V Enhancement 2.3V 1.8V 1.76 kW Series 2
RS Stock No. 915-8818
Mfr. Part No.C2M0025120D
BrandWolfspeed
MYR385.22
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N 90 A 1200 V 34 mΩ TO-247 Through Hole 3 +25 V Enhancement 4V 2V 463 W Single 1
RS Stock No. 145-6863
Mfr. Part No.C2M0025120D
BrandWolfspeed
MYR356.442
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N 90 A 1200 V 34 mΩ TO-247 Through Hole 3 +25 V Enhancement 4V 2V 463 W Single 1
RS Stock No. 916-3872
Mfr. Part No.CAS300M12BM2
BrandWolfspeed
MYR3,292.50
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N 404 A 1200 V 9.8 mΩ Half Bridge Panel Mount 7 -10 V, +25 V Enhancement 2.3V 1.8V 1.66 kW Series 2
RS Stock No. 162-9721
Mfr. Part No.CAS300M12BM2
BrandWolfspeed
MYR4,708.877
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N 404 A 1200 V 9.8 mΩ Half Bridge Panel Mount 7 -10 V, +25 V Enhancement 2.3V 1.8V 1.66 kW Series 2
RS Stock No. 915-8842
Mfr. Part No.C3M0280090D
BrandWolfspeed
MYR18.96
Each (In a Pack of 2)
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N 11.5 A 900 V 360 mΩ TO-247 Through Hole 3 -8 V, +18 V Enhancement 3.5V 1.8V 54 W Single 1
RS Stock No. 162-9714
Mfr. Part No.C3M0280090D
BrandWolfspeed
MYR24.364
Each (In a Tube of 30)
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N 11.5 A 900 V 360 mΩ TO-247 Through Hole 3 -8 V, +18 V Enhancement 3.5V 1.8V 54 W Single 1
RS Stock No. 915-8849
Mfr. Part No.C3M0120090D
BrandWolfspeed
MYR37.74
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N 23 A 900 V 155 mΩ TO-247 Through Hole 3 -8 V, +18 V Enhancement 3.5V 1.8V 97 W Single 1
New
RS Stock No. 192-3523
Mfr. Part No.C3M0075120D
BrandWolfspeed
MYR103.10
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N 30 A 1200 V 75 mΩ TO-247 Through Hole 3 -8 V, 19 V Enhancement 4V 1.7V 113.6 W Single 1
New
RS Stock No. 192-3486
Mfr. Part No.C2M0045170D
BrandWolfspeed
MYR456.50
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N 72 A 1700 V 45 mΩ TO-247 Through Hole 3 -10 V, 25 V Enhancement 4V 2V 520 W Single 1
New
RS Stock No. 192-3368
Mfr. Part No.C2M0080170P
BrandWolfspeed
MYR179.68
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N 40 A 1700 V 80 mΩ TO-247 Through Hole 4 -10 V, 25 V Enhancement 4V 2V 277 W Single 1
New
RS Stock No. 192-3376
Mfr. Part No.C3M0075120D
BrandWolfspeed
MYR79.303
Each (In a Tube of 30)
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N 30 A 1200 V 75 mΩ TO-247 Through Hole 3 -8 V, 19 V Enhancement 4V 1.7V 113.6 W Single 1