Semiconductors

Semiconductors are materials that have been specifically designed to be used in electronic devices and circuits. Made of carbon, silicon, germanium, and silicon-germanium, they connect and conduct electricity and heat. In 2017, the global market for semiconductors was over $400 billion, demonstrating how essential they are to modern society.

As a semiconductor supplier company, RS offers a comprehensive range of semiconductor devices from leading manufacturers. Our broad portfolio includes products from ON Semiconductor, STMicroelectronics, Vishay, Microchip, Infineon, Analog Devices, and many more.

Our extensive semiconductor range provides a single point of supply throughout an electronic product life-cycle. For prototyping, we offer an extensive variety of development boards and silicon in convenient small quantities. To cater for production we also supply silicon in manufacturer standard bulk packaging, such as trays, tubes and reels etc. Combined with the wide variety of semiconductor device types and technologies on offer, RS is an excellent source for all your electronic component needs.

What is a Semiconductor

Simplistically, a semiconductor is a material that has an electrical conductance between that of an insulator and a conductor. This means that a semiconductor can conduct current, but only partially. This key characteristic provides the foundation for modern electronic devices.

Semiconductors are essential in electronics as their properties can be modified and manipulated to provide useful functionality. For example, in a mosfet transistor, a voltage can be applied to the semiconductor material from which it is constructed to control whether the mosfet conducts current or not, providing an electronic, solid state switch. Another example would be a rectifier, where the semiconductor construction means that current can flow more easily in one direction than the other, providing directional current flow control.

The most common semiconductor material used by companies is silicon. This term is becoming ubiquitous to describe PCB semiconductor devices as a whole.

Common Semiconductor Devices Types

There are hundreds, if not thousands of semiconductor device types that can be split into two broad device types:

  • Discretes: A simple device, a device with just one circuit element. Common examples include transistors such as mosfets, diodes, TRIACS and LEDs.
  • Integrated Circuits (ICs): Electronic devices that incorporate several circuit elements into one package. Examples include microcontrollers, microprocessors, analogue-to-digital converters, operational amplifiers and voltage regulators.

Other than semiconductors, you can also find connectors, switches, and more products online at RS. Enjoy our fast delivery when you shop online with us.

Amplifiers & Comparators
Amplifiers & Comparators

Audio & Video ICs
Audio & Video ICs

Chip Programmers & Debuggers
Chip Programmers & Debuggers

Clock, Timing & Frequency ICs
Clock, Timing & Frequency ICs

Communication & Wireless Module ICs
Communication & Wireless Module ICs

Data Converters
Data Converters

Discrete Semiconductors
Discrete Semiconductors

Interface ICs
Interface ICs

Logic ICs
Logic ICs

Memory Chips
Memory Chips

Power Management ICs
Power Management ICs

Processors & Microcontrollers
Processors & Microcontrollers

Programmable Logic ICs
Programmable Logic ICs

Sensor ICs
Sensor ICs

111695 Products showing for Semiconductors

1 of 999+
In Stock
onsemi 1 kV 1 A Diode Switching 2-Pin DO-41 1N4007RLG
  • RS Stock No. 649-1143
  • Mfr. Part No. 1N4007RLG
Subtotal (1 pack of 100 units)
$10.30(exc. GST)
In Stock
RS PRO Counter, Counter, 7 Digit LED 240V ac
  • RS Stock No. 434-511
Subtotal (1 unit)
$32.29(exc. GST)
In Stock
Lenze Bridge Rectifier, 6-Pin Single
  • RS Stock No. 488-9302
  • Mfr. Part No. B5-77681
Subtotal (1 unit)
$635.66(exc. GST)
In Stock
Vishay Bridge Rectifier, 400 V 400 A, 4-Pin Single
  • RS Stock No. 629-6320
  • Mfr. Part No. GBPC3504-E4/51
Subtotal (1 unit)
$8.10(exc. GST)
In Stock
Infineon HEXFET Type N-Channel MOSFET, 47 A, 55 V Enhancement, 3-Pin TO-220 IRLZ44NPBF
  • RS Stock No. 541-0086
  • Mfr. Part No. IRLZ44NPBF
Subtotal (1 unit)
$2.50(exc. GST)
In Stock
Vishay 1 kV 3 A Diode Rectifier Diode 2-Pin DO-201AD 1N5408-E3/54
  • RS Stock No. 628-9502
  • Mfr. Part No. 1N5408-E3/54
Subtotal (1 pack of 10 units)
$6.55(exc. GST)
In Stock
Amphenol Advanced Sensors T9602 Series, Analogue, Digital Output Temperature & Humidity Sensor, Cable, I2C, ±2 %, 4-Pin
  • RS Stock No. 257-9568
  • Mfr. Part No. T9602-3-D-1
Subtotal (1 unit)
$70.06(exc. GST)
Temporarily out of stock
Vishay 600 V 85 A Diode Switching 2-Pin T-Module
  • RS Stock No. 379-8003P
  • Mfr. Part No. VS-T85HFL60S02
Subtotal 1 unit (supplied in a bag)
$56.05(exc. GST)
In Stock
Microchip PG164150,
  • RS Stock No. 273-5061
  • Mfr. Part No. PG164150
Subtotal (1 unit)
$146.15(exc. GST)
In Stock
HY Electronic Corp Bridge Rectifier, 1000 V 400 A, 4-Pin Single
  • RS Stock No. 917-9010
  • Mfr. Part No. KBPC3510
Subtotal (1 pack of 10 units)
$87.05(exc. GST)
In Stock
onsemi 2N7000 Type N-Channel MOSFET, 200 mA, 60 V Enhancement, 3-Pin TO-92 2N7000
  • RS Stock No. 671-4733
  • Mfr. Part No. 2N7000
Subtotal (1 pack of 20 units)
$11.60(exc. GST)
In Stock
Vishay 400 V 1 A Diode General Purpose 2-Pin DO-204AL 1N4004-E3/54
  • RS Stock No. 628-9029
  • Mfr. Part No. 1N4004-E3/54
Subtotal (1 pack of 10 units)
$2.17(exc. GST)
In Stock
RS PRO Counter, Counter, 6 Digit LED, 20 kHz 24V
  • RS Stock No. 808-6611
Subtotal (1 unit)
$252.65(exc. GST)
In Stock
United Automation CSR2-15E Linear Voltage, Voltage Regulator, 15 A, 230 V 3-Pin
  • RS Stock No. 655-644
  • Mfr. Part No. CSR2-15E
Subtotal (1 unit)
$130.69(exc. GST)
In Stock
Vishay 400 V 3 A Diode Rectifier Diode 2-Pin DO-201AD 1N5404-E3/54
  • RS Stock No. 628-9473
  • Mfr. Part No. 1N5404-E3/54
Subtotal (1 pack of 10 units)
$4.60(exc. GST)
In Stock
Texas Instruments SE SE555P Timer Circuit, 1, 8-Pin PDIP
  • RS Stock No. 709-2110
  • Mfr. Part No. SE555P
Subtotal (1 pack of 5 units)
$10.62(exc. GST)
In Stock
RS PRO RS PRO Totalizer, Counter, 7 Digit LCD 30V
  • RS Stock No. 896-6995
Subtotal (1 unit)
$91.81(exc. GST)
Unavailable
RS PRO Thermionic Valve Base, Octal Base For 6550, 6CA7, 6P3P, 8-pin vacuum tubes such as EL34, KT88
  • RS Stock No. 678-4098
Subtotal (1 pack of 2 units)
$10.08(exc. GST)
In Stock
RS PRO Counter, Counter, 6 Digit LED, 20 kHz 230V ac
  • RS Stock No. 808-6605
Subtotal (1 unit)
$102.00(exc. GST)
Last RS stock
Vishay 40 V 12 A Diode Schottky 3-Pin DPAK VS-12CWQ04FN-M3
  • RS Stock No. 302-101
  • Mfr. Part No. VS-12CWQ04FN-M3
Subtotal (1 pack of 5 units)
$6.21(exc. GST)
In Stock
Semikron Danfoss 1600 V 95 A Diode High Voltage 2-Pin DO-203AB SKR 71/16
  • RS Stock No. 905-6027
  • Mfr. Part No. SKR 71/16
Subtotal (1 unit)
$33.61(exc. GST)
In Stock
Microchip MCP9700 Series, Voltage Output Voltage Temperature Sensor, Through Hole Mount, Analogue, ±1°C, 3-Pin TO-92
  • RS Stock No. 403-620
  • Mfr. Part No. MCP9700-E/TO
Subtotal (1 pack of 20 units)
$16.62(exc. GST)
In Stock
HY Electronic Corp Bridge Rectifier, 1000 V 500 A, 4-Pin Single
  • RS Stock No. 917-9017
  • Mfr. Part No. KBPC5010
Subtotal (1 pack of 10 units)
$136.58(exc. GST)
In Stock
Vishay Bridge Rectifier, 400 V 500 A, 4-Pin Single
  • RS Stock No. 227-8766
  • Mfr. Part No. VS-36MB40A
Subtotal (1 unit)
$15.36(exc. GST)
In Stock
Vishay VS-40TPS08-M3, Thyristor 800 V, 35 A 150 mA 600 A 1.85 V
  • RS Stock No. 167-314
  • Mfr. Part No. VS-40TPS08-M3
Subtotal (1 unit)
$11.50(exc. GST)
In Stock
United Automation ZVS-16DV, Variable AC Voltage Regulator 600 V, 16 A 200 A
  • RS Stock No. 214-3979
  • Mfr. Part No. ZVS-16DV
Subtotal (1 unit)
$163.30(exc. GST)
In Stock
Infineon HEXFET Type N-Channel MOSFET, 30 A, 200 V Enhancement, 3-Pin TO-247 IRFP250NPBF
  • RS Stock No. 541-0042
  • Mfr. Part No. IRFP250NPBF
Subtotal (1 unit)
$4.96(exc. GST)
In Stock
Nexperia 100 V 215 mA Diode Switching 3-Pin SOT-23
  • RS Stock No. 544-4534
  • Mfr. Part No. BAV99,215
Subtotal (1 pack of 20 units)
$3.40(exc. GST)
In Stock
Littelfuse S4065JTP, Thyristor 400 V, 65 A 50 mA 950 A 1.8 V
  • RS Stock No. 793-1923
  • Mfr. Part No. S4065JTP
Subtotal (1 unit)
$16.13(exc. GST)
In Stock
HY Electronic Corp Bridge Rectifier, 600 V 175 A, 4-Pin Single
  • RS Stock No. 923-5432
  • Mfr. Part No. GBU606
Subtotal (1 tube of 20 units)
$15.82(exc. GST)
In Stock
Microchip DAC 12 bit- 2 SPI, Microwire, 8-Pin PDIP
  • RS Stock No. 681-1092
  • Mfr. Part No. MCP4822-E/P
Subtotal (1 unit)
$7.78(exc. GST)
In Stock
Figaro TGS2602-B00 Air Contaminants Air Quality Sensor for Ventilation, Odour Monitor, VOC Monitors, Air Quality
  • RS Stock No. 134-6671
  • Mfr. Part No. TGS2602-B00
Subtotal (1 unit)
$58.42(exc. GST)
In Stock
RS PRO Counter, Counter, 5 Digit Mechanical
  • RS Stock No. 710-5228
Subtotal (1 unit)
$23.59(exc. GST)
In Stock
Infineon HEXFET Type N-Channel MOSFET, 49 A, 55 V Enhancement, 3-Pin TO-220 IRFZ44NPBF
  • RS Stock No. 540-9777
  • Mfr. Part No. IRFZ44NPBF
Subtotal (1 unit)
$2.29(exc. GST)
Last RS stock
RS PRO, Analogue Output Humidity Sensor, Plug-in, Analogue, ±3 %RH, 2-Pin
  • RS Stock No. 246-5629
Subtotal (1 unit)
$4.36(exc. GST)
In Stock
RF Solutions LoRa Module -148 dBm Receiver Sensitivity
  • RS Stock No. 125-1260
  • Mfr. Part No. RFM95W-915S2
Subtotal (1 unit)
$36.70(exc. GST)
In Stock
Texas Instruments LM2940CT-12/NOPB, Voltage Regulator 26V TO-220 3-Pin
  • RS Stock No. 533-5626
  • Mfr. Part No. LM2940CT-12/NOPB
Subtotal (1 unit)
$2.96(exc. GST)
In Stock
United Automation MAT, Thyristor Trigger Module
  • RS Stock No. 489-3480
  • Mfr. Part No. MAT
Subtotal (1 unit)
$74.71(exc. GST)
In Stock
Semikron Danfoss Bridge Rectifier Module, 1600 V 1.5 kA, 5-Pin Single
  • RS Stock No. 905-6068
  • Mfr. Part No. SKD 30/16 A1
Subtotal (1 unit)
$127.19(exc. GST)
In Stock
onsemi 1, 16 V Zener Diode, Single 5 W 5 % Through Hole 2-Pin
  • RS Stock No. 792-5313
  • Mfr. Part No. 1N5353BRLG
Subtotal (1 pack of 20 units)
$13.84(exc. GST)
In Stock
Texas Instruments, 1-Channel Audio Power Amplifier, 8-Pin, 1W MDIP LM386N-4/NOPB
  • RS Stock No. 534-2911
  • Mfr. Part No. LM386N-4/NOPB
Subtotal (1 unit)
$1.75(exc. GST)
In Stock
Panasonic EKMB1 PIR Sensor 12 m 2.3 V 4 V 3 TO-5
  • RS Stock No. 161-2237
  • Mfr. Part No. EKMB1303112K
Subtotal (1 unit)
$36.00(exc. GST)
In Stock
Vishay Bridge Rectifier, 1600 V 155 A, 4-Pin Single
  • RS Stock No. 227-8823
  • Mfr. Part No. VS-36MB160A
Subtotal (1 unit)
$26.55(exc. GST)
In Stock
Hengstler 891 Hour Meter, Counter, 7 Digit Analogue 230V ac
  • RS Stock No. 260-072
  • Mfr. Part No. 0 891 211
Subtotal (1 unit)
$108.00(exc. GST)
In Stock
IXYS 1600 V 120 A Diode General Purpose 3-Pin TO-240 MDD95-16N1B
  • RS Stock No. 192-871
  • Mfr. Part No. MDD95-16N1B
Subtotal (1 unit)
$62.35(exc. GST)
In Stock
Red Lion CUB5 Counter, Counter, 8 Digit LCD, 20 kHz 28V dc
  • RS Stock No. 492-7325
  • Mfr. Part No. CUB5R000
Subtotal (1 unit)
$456.07(exc. GST)
In Stock
Elesa DD51 Counter, Counter, 4 Digit
  • RS Stock No. 448-8729
  • Mfr. Part No. CE.84183
Subtotal (1 unit)
$197.36(exc. GST)
In Stock
United Automation PSR-25, Phase Angle Power Control Module, 25 A 250 A
  • RS Stock No. 841-924
  • Mfr. Part No. PSR-25
Subtotal (1 unit)
$146.93(exc. GST)
In Stock
Red Lion PAXI Counter, Modbus, TCP, Rate Meter, Counter, 5 Digit LED 250V ac
  • RS Stock No. 905-5658
  • Mfr. Part No. PAXI0020
Subtotal (1 unit)
$660.02(exc. GST)
In Stock
Texas Instruments LM317T/NOPB, Voltage Regulator 40V TO-220 3-Pin
  • RS Stock No. 533-8209
  • Mfr. Part No. LM317T/NOPB
Subtotal (1 unit)
$5.11(exc. GST)
1
2
3
2234
Results per page

Guides & Articles

Discrete Semiconductors Guide
Everything you need to know about discrete semiconductors
Read more
Guide to Microcontrollers
In this guide, we’ll explore what a microcontroller is, how it differs from related technologies, the most common types.
Read more

Related links