N Channel Mosfets

MOSFET is an acronym meaning ‘metal oxide semiconductor field-effect transistor', a type of transistor device that's controlled by a capacitor and behaves very much like a switch when installed as part of a powered circuit.

The purpose of a MOSFET is chiefly to control the flow of current passing from a source to the drain terminals, which it does by switching or amplifying electronic signals as they pass through.

What types of MOSFETS are available, and what roles do they perform?

There are various types and modes of MOSFET sold on today's market, including N-Channel and P-Channel (defined by the type of ‘doped' silicon they're made with), running in either depletion or enhancement modes.

  • N-Channel MOSFETS are the more popular and commonly used channel type
  • N-Channel MOSFETS are loosely defined as MOSFETS that contain additional electrons which are free to move around
  • N-Channel MOSFETs work when a positive charge is applied to the gate terminal
    • By contrast, the substrate of a P-Channel MOSFET contains both electrons and electron ‘holes'
    • This type of transistor only turns on when the voltage supplied to the gate terminal is lower than the source voltage
  • An N-Channel MOSFET or P-Channel MOSFET running in depletion mode will function similarly to a closed switch, allowing current flow through until a negative voltage is applied; enhancement mode MOSFETS are more widely used, and their basic function is something like that of a variable resistor

We work with a great many leading manufacturers and brands to source all our transistors, semiconductors and other electrical engineering components, including:

  • DiodesZetex
  • Infineon
  • IXYS
  • MagnaChip
  • Nexperia
  • ON Semiconductor
  • Panasonic
  • ROHM
  • STMicroelectronics
  • Taiwan Semiconductor
  • Texas Instruments
  • Toshiba
  • Vishay

...
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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. 671-4736
Mfr. Part No.BS170
£0.227
Each (In a Pack of 10)
Units
N 500 mA 60 V 5 Ω TO-92 Through Hole 3 -20 V, +20 V Enhancement 3V 0.8V 830 mW Single 1
RS Stock No. 124-1745
Mfr. Part No.BS170
£0.074
Each (In a Bag of 1000)
Units
N 500 mA 60 V 5 Ω TO-92 Through Hole 3 -20 V, +20 V Enhancement 3V 0.8V 830 mW Single 1
RS Stock No. 671-4733
Mfr. Part No.2N7000
£0.206
Each (In a Pack of 20)
Units
N 200 mA 60 V 5 Ω TO-92 Through Hole 3 -20 V, +20 V Enhancement - 0.8V 400 mW Single 1
RS Stock No. 739-0224
Mfr. Part No.2N7000TA
£0.208
Each (In a Pack of 10)
Units
N 200 mA 60 V 5 Ω TO-92 Through Hole 3 -30 V, +30 V Enhancement - 0.3V 400 mW Single 1
RS Stock No. 903-4074
Mfr. Part No.2N7000-D26Z
£0.09
Each (In a Pack of 100)
Units
N 200 mA 60 V 9 Ω TO-92 Through Hole 3 -40 V, +40 V Enhancement - 0.8V 400 mW Single 1
RS Stock No. 124-1310
Mfr. Part No.2N7000TA
£0.057
Each (On a Reel of 2000)
Units
N 200 mA 60 V 5 Ω TO-92 Through Hole 3 -30 V, +30 V Enhancement - 0.3V 400 mW Single 1
RS Stock No. 169-8553
Mfr. Part No.2N7000
£0.068
Each (On a Reel of 10000)
Units
N 200 mA 60 V 5 Ω TO-92 Through Hole 3 -20 V, +20 V Enhancement - 0.8V 400 mW Single 1
RS Stock No. 541-1247
Mfr. Part No.IRLZ34NPBF
BrandInfineon
£0.89
Each
Units
N 30 A 55 V 35 mΩ TO-220AB Through Hole 3 -16 V, +16 V Enhancement 2V 1V 68 W Single 1
RS Stock No. 919-4898
Mfr. Part No.IRLZ34NPBF
BrandInfineon
£0.749
Each (In a Tube of 50)
Units
N 30 A 55 V 35 mΩ TO-220AB Through Hole 3 -16 V, +16 V Enhancement 2V 1V 68 W Single 1
RS Stock No. 541-1180
Mfr. Part No.IRF520NPBF
BrandInfineon
£0.74
Each
Units
N 9.7 A 100 V 200 mΩ TO-220AB Through Hole 3 -20 V, +20 V Enhancement 4V 2V 48 W Single 1
RS Stock No. 919-4876
Mfr. Part No.IRF520NPBF
BrandInfineon
£0.593
Each (In a Tube of 50)
Units
N 9.7 A 100 V 200 mΩ TO-220AB Through Hole 3 -20 V, +20 V Enhancement 4V 2V 48 W Single 1
RS Stock No. 671-0324
Mfr. Part No.BSS138
£0.14
Each (In a Pack of 10)
Units
N 220 mA 50 V 3.5 Ω SOT-23 Surface Mount 3 -20 V, +20 V Enhancement 1.5V 0.8V 360 mW Single 1
RS Stock No. 124-1694
Mfr. Part No.BSS138
£0.03
Each (On a Reel of 3000)
Units
N 220 mA 50 V 3.5 Ω SOT-23 Surface Mount 3 -20 V, +20 V Enhancement 1.5V 0.8V 360 mW Single 1
RS Stock No. 103-8398
Mfr. Part No.2N7002,215
BrandNexperia
£0.019
Each (On a Reel of 3000)
Units
N 300 mA 60 V 5 Ω SOT-23 (TO-236AB) Surface Mount 3 -30 V, +30 V Enhancement 2.5V 1V 830 mW Single 1
RS Stock No. 436-7379
Mfr. Part No.2N7002,215
BrandNexperia
£0.107
Each (In a Pack of 25)
Units
N 300 mA 60 V 5 Ω SOT-23 (TO-236AB) Surface Mount 3 -30 V, +30 V Enhancement 2.5V 1V 830 mW Single 1
RS Stock No. 295-703
Mfr. Part No.RFP12N10L
£0.78
Each
Units
N 12 A 100 V 200 mΩ TO-220AB Through Hole 3 -10 V, +10 V Enhancement - 1V 60 W Single 1
RS Stock No. 368-3197
Mfr. Part No.RFP12N10L
£0.627
Each (In a Tube of 50)
Units
N 12 A 100 V 200 mΩ TO-220AB Through Hole 3 -10 V, +10 V Enhancement - 1V 60 W Single 1
RS Stock No. 688-7204
Mfr. Part No.IRLB3034PBF
BrandInfineon
£2.09
Each (In a Pack of 2)
Units
N 343 A 40 V 2 mΩ TO-220AB Through Hole 3 -20 V, +20 V Enhancement 2.5V 1V 375 W Single 1
RS Stock No. 124-9024
Mfr. Part No.IRLB3034PBF
BrandInfineon
£1.785
Each (In a Tube of 50)
Units
N 343 A 40 V 2 mΩ TO-220AB Through Hole 3 -20 V, +20 V Enhancement 2.5V 1V 375 W Single 1
RS Stock No. 124-1400
Mfr. Part No.FQP30N06L
£0.801
Each (In a Tube of 50)
Units
N 32 A 60 V 45 mΩ TO-220 Through Hole 3 -20 V, +20 V Enhancement - 1V 79 W Single 1