Semiconductors

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, plus many more.

Our extensive semiconductor offer provides a single point of supply throughout an electronic product life-cycle. For prototyping, we offer an extensive range 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 you 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 that the other, providing directional current flow control.

The most common semiconductor material used within electronics is silicon, the term 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.

Typical Applications

An electronic product will have many semiconductor devices within its construction. The global market for semiconductors in 2017 was over $400 billion, demonstrating how essential they are to modern society.

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

121081 Products showing for Semiconductors

28 of 999+
Diodes Inc ZTX653 NPN Transistor, 2 A, 100 V, 3-Pin TO-92
  • RS Stock No. 295-517
  • Mfr. Part No. ZTX653
Each (In a Pack of 5)
£0.676
Nexperia 60V 1A, Schottky Diode, 2-Pin SOD-123W PMEG6010ER,115
  • RS Stock No. 781-6795
  • Mfr. Part No. PMEG6010ER,115
Each (In a Pack of 25)
£0.107
Renesas Electronics ICM7555IPAZ, Programmable Timer Circuit 1MHz, 8-Pin PDIP
  • RS Stock No. 921-5374
  • Mfr. Part No. ICM7555IPAZ
Each (In a Pack of 10)
£0.867
Microchip, 8bit PIC, PIC18F Microcontroller, 48MHz, 128 kB Flash, 28-Pin SOIC
  • RS Stock No. 703-7664
  • Mfr. Part No. PIC18F27J53-I/SO
Each
£3.54
HY Electronic Corp 40V 3A, Schottky Diode, 2-Pin DO-27 1N5822
  • RS Stock No. 917-9102
  • Mfr. Part No. 1N5822
Each (In a Pack of 100)
£0.106
Texas Instruments LM317LM/NOPB, 1 Linear Voltage, Voltage Regulator 100mA, 1.2 → 37 V 8-Pin, SOIC
  • RS Stock No. 536-1293
  • Mfr. Part No. LM317LM/NOPB
Each
£0.72
Nexperia 40V 200mA, Dual Schottky Diode, 3-Pin SOT-23 BAT721C,215
  • RS Stock No. 509-695
  • Mfr. Part No. BAT721C,215
Each (In a Pack of 50)
£0.101
Recom R-78K5.0-2.0L, 1-Channel, Non-Isolated DC-DC Converter, Current, Voltage, 2A 3-Pin, SIP3
  • RS Stock No. 274-3514
  • Mfr. Part No. R-78K5.0-2.0L
Each
£3.90
STMicroelectronics L7805CDT-TR, 1 Linear Voltage, Voltage Regulator 1.5A, 5 V 3-Pin, DPAK
  • RS Stock No. 686-9221
  • Mfr. Part No. L7805CDT-TR
Each (In a Pack of 10)
£0.642
Microchip, 8bit AVR, ATmega Microcontroller, 20MHz, 32 kB Flash, 32-Pin TQFP
  • RS Stock No. 131-0271
  • Mfr. Part No. ATMEGA328P-AU
Each (In a Pack of 2)
£2.18
Nexperia 74HC32D,652, Quad 2-Input OR Logic Gate, 14-Pin SOIC
  • RS Stock No. 124-2258
  • Mfr. Part No. 74HC32D,652
Each (In a Tube of 57)
£0.062
Texas Instruments SN74LS139AN, Decoder, 16-Pin PDIP
  • RS Stock No. 308-253
  • Mfr. Part No. SN74LS139AN
Each
£0.66
MaxLinear SP6203EM5-L-2-8/TR, 1 Low Dropout Voltage, Voltage Regulator 300mA, 2.8 V 5-Pin, SOT-23
  • RS Stock No. 686-5761
  • Mfr. Part No. SP6203EM5-L-2-8/TR
Each (In a Pack of 10)
£0.447
onsemi, 3.9V Zener Diode 5% 500 mW Through Hole 2-Pin DO-35
  • RS Stock No. 805-0117
  • Mfr. Part No. 1N5228BTR
Each (In a Pack of 200)
£0.019
UA741CP Texas Instruments, Op Amp, 1MHz, 8-Pin PDIP
  • RS Stock No. 305-311
  • Mfr. Part No. UA741CP
Each (In a Pack of 5)
£0.394
WeEn Semiconductors Co., Ltd 200V 20A, Dual Ultrafast Rectifiers Diode, 3-Pin TO-220AB BYV32E-200,127
  • RS Stock No. 485-4328
  • Mfr. Part No. BYV32E-200,127
Each (In a Pack of 5)
£1.116
Texas Instruments SN74LVC1G86DCKT 2-Input XOR Logic Gate
  • RS Stock No. 252-0752
  • Mfr. Part No. SN74LVC1G86DCKT
Each (In a Pack of 10)
£0.388
HY Electronic Corp Bridge Rectifier, 25A, 1000V, 4-Pin
  • RS Stock No. 917-9007
  • Mfr. Part No. KBPC2510
Each (In a Pack of 10)
£3.044
Infineon HEXFET P-Channel MOSFET, 4.3 A, 12 V, 3-Pin SOT-23 IRLML6401TRPBF
  • RS Stock No. 301-316P
  • Mfr. Part No. IRLML6401TRPBF
Each (Supplied on a Reel)
£0.34
STMicroelectronics TIP42A PNP Transistor, -6 A, -60 V, 3-Pin TO-220
  • RS Stock No. 795-9246
  • Mfr. Part No. TIP42A
Each (In a Pack of 10)
£0.524
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