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.

Looking for MOSFET Drivers?


...
Read more Read less

Filters

Viewing 1 - 20 of 77 products
Results per page
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. 171-3616
Mfr. Part No.TSM2309CX RFG
HK$0.863
Each (On a Reel of 3000)
units
P 3.1 A 60 V 240 mΩ SOT-23 Surface Mount 3 ±20 V Enhancement 2.5V 1.2V 1.56 W Single 1
RS Stock No. 171-3617
Mfr. Part No.TSM230N06CP ROG
HK$2.134
Each (On a Reel of 2500)
units
N 50 A 60 V 28 mΩ TO-252 Surface Mount 3 + Tab ±20 V Enhancement 2.5V 1.2V 53 W Single 1
RS Stock No. 171-3621
Mfr. Part No.TSM4425CS RLG
HK$3.886
Each (On a Reel of 2500)
units
N 11 A 30 V 19 mΩ SOP Surface Mount 8 ±20 V Enhancement 3V 1V 2.5 W Single 1
RS Stock No. 169-9285
Mfr. Part No.TSM2310CX RFG
HK$1.472
Each (On a Reel of 3000)
units
N 4 A 20 V 100 mΩ SOT-23 Surface Mount 3 -12 V, +12 V Enhancement 1.2V - 1.25 W Single 1
RS Stock No. 169-9282
Mfr. Part No.TSM2307CX RFG
HK$1.166
Each (On a Reel of 3000)
units
P 3 A 30 V 140 mΩ SOT-23 Surface Mount 3 -20 V, +20 V Enhancement 3V - 1.25 W Single 1
RS Stock No. 171-3721
Mfr. Part No.TSM4NB60CI C0G
HK$8.889
Each (In a Pack of 25)
units
N 4 A 600 V 2.5 mΩ ITO-220 Through Hole 3 ±30 V Enhancement 4.5V 2.5V 25 W Single 1
RS Stock No. 171-3663
Mfr. Part No.TSM60N380CI C0G
HK$23.174
Each (In a Pack of 5)
units
N 11 A 600 V 380 mΩ ITO-220S Through Hole 3 ±30 V Enhancement 4V 2V 33 W Single 1
RS Stock No. 171-3622
Mfr. Part No.TSM4436CS RLG
HK$1.94
Each (On a Reel of 2500)
units
N 8 A 60 V 43 mΩ SOP Surface Mount 8 ±20 V Enhancement 3V 1V 2.5 W Single 1
RS Stock No. 171-3626
Mfr. Part No.TSM4NB60CI C0G
HK$4.283
Each (On a Reel of 1000)
units
N 4 A 600 V 2.5 mΩ ITO-220 Through Hole 3 ±30 V Enhancement 4.5V 2.5V 25 W Single 1
RS Stock No. 171-3612
Mfr. Part No.TSM126CX RFG
HK$1.219
Each (On a Reel of 3000)
units
N 30 mA 600 V 800 Ω SOT-23 Surface Mount 3 ±20 V Depletion 1V 2.7V 500 mW Single 1
RS Stock No. 171-3717
Mfr. Part No.TSM4946DCS RLG
HK$7.01
Each (In a Pack of 25)
units
N 4.5 A 60 V 75 mΩ SOP Surface Mount 8 ±20 V Enhancement 3V 1V 2.4 W Single 1
RS Stock No. 743-6065
Mfr. Part No.TSM2318CX RFG
HK$4.505
Each (In a Pack of 10)
units
N 3.9 A 40 V 62 mΩ SOT-23 Surface Mount 3 -20 V, +20 V Enhancement 3V - 1.25 W Single 1
RS Stock No. 743-6049
Mfr. Part No.TSM3457CX6 RFG
HK$4.802
Each (In a Pack of 10)
units
P 5 A 30 V 100 mΩ SOT-26 Surface Mount 6 -20 V, +20 V Enhancement 3V - 2 W Single 1
RS Stock No. 171-3693
Mfr. Part No.TSM2303CX RFG
HK$2.068
Each (In a Pack of 100)
units
P 1.3 A 30 V 300 mΩ SOT-23 Surface Mount 3 ±20 V Enhancement 3V 1V 700 mW Single 1
RS Stock No. 171-3642
Mfr. Part No.TSM8N80CI C0G
HK$16.929
Each (On a Reel of 1000)
units
N 8 A 800 V 1.5 Ω ITO-220 Through Hole 3 ±30 V Enhancement 4V 2V 40.3 W Single 1
RS Stock No. 171-3613
Mfr. Part No.TSM1NB60CH C5G
HK$2.271
Each (On a Reel of 1875)
units
N 1 A 600 V 10 Ω TO-251 Through Hole 3 ±30 V Enhancement 4.5V 2.5V 39 W Single 1
RS Stock No. 171-3635
Mfr. Part No.TSM70N1R4CP ROG
HK$4.502
Each (On a Reel of 2500)
units
N 3.3 A 700 V 1.4 Ω TO-252 Surface Mount 3 + Tab ±30 V Enhancement 4V 2V 38 W Single 1
RS Stock No. 171-3627
Mfr. Part No.TSM4NB60CP ROG
HK$3.038
Each (On a Reel of 2500)
units
N 4 A 600 V 2.5 Ω TO-252 Surface Mount 3 + Tab ±30 V Enhancement 4.5V 2.5V 50 W Single 1
RS Stock No. 171-3611
Mfr. Part No.TSM120N06LCS RLG
HK$2.509
Each (On a Reel of 2500)
units
N 23 A 60 V 15 mΩ SOP Surface Mount 8 ±20 V Enhancement 2.5V 1.2V 12.5 W Single 1
RS Stock No. 171-3711
Mfr. Part No.TSM4425CS RLG
HK$7.773
Each (In a Pack of 25)
units
N 11 A 30 V 19 mΩ SOP Surface Mount 8 ±20 V Enhancement 3V 1V 2.5 W Single 1