Discrete Semiconductors
Darlington pairs, also known as Darlington Transistors are discrete semiconductor devices consisting of a package of two standard BJT transistors (bipolar junction transistor). One of the transistors is high-gain while the other is high current. RS Components offer a wide range of high-quality Darlington Transistors from leading brands including ON Semiconductor, STMicroelectronics, Texas Instruments and Nexperia.How do they work?The emitter of one transistor is connected to the base of the other transistor which effectively creates one transistor. They are used to amplify weak signals from one circuit to another circuit or microprocessor. This means that the tiny current from a sensor or microcontroller I/O pin can be amplified to drive a large load. Darlington pairs can also be operated as an ON/OFF switch. Darlington pairs work together as a single transistor but feature a much higher current gain. They also offer high input impedance in comparison to single transistors.Why should you use a Darlington pair?Darlington pairs provide a very high current gain. Working as two transistors within one package, Darlington pairs have a very compact footprint which takes up minimal space on a (PCB) printed circuit board.What applications would you use them in?With high current gain, Darlington transistors are well suited to power applications such as driving motors and relays. Darlington pairs are ideal for application in display drivers, audio outputs, power regulators, light sensors, touch sensors and power supply outputs. It is not recommended to use them in applications that require high frequency as it is not possible to shut the base current off immediately.What are the different types?Darlington pairs can consist of either NPN (negative-positive-negative) transistors, PNP (positive-negative-positive) transistors or both.Darlington pairs are typically supplied in one of two ways. You can purchase them as an array (called a Darlington array) within a single integrated circuit (IC) package, or as a simple single discrete component.Standard package type examples include SOT-23, SOIC, TO-220 and TO-252 (DPAK)
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THYRISTOR TRIAC 600V 21A TO-202
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THYRISTOR TRIAC 6A 600V TO-220AB INSUL.
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THYRISTOR TRIAC 8A 600V TO-220AB INSUL.
IDR86,848.92Pack (1 Pack of 5) -
THYRISTOR,30TPS12 30A 1200V
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Vishay VS-40TPS12-M3, Thyristor 1200V, 35A 150mA
IDR106,882.91 -
THYRISTOR,40TPS12A 40A 1200V
IDR110,134.50 -
THYRISTOR,500V,12A,BT151-500R
IDR63,038.89Pack (1 Pack of 10) -
THYRISTOR,ST230S12P1V 360A 1200V
IDR1,523,002.80 -
THYRISTOR,VS-ST330C14C0
IDR1,929,451.55 -
THYRISTOR/DIODE MODULE 200A 1600V
IDR1,166,062.13 -
TRANS DARLINGTON NPN 100V 0.5A PDIP16
IDR298,097.38Tube (1 Tube of 25) -
TRANS DARLINGTON NPN 100V 10A TO220
IDR143,909.08Pack (1 Pack of 10) -
TRANS DARLINGTON NPN 100V 15A TO220AB
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TRANS DARLINGTON NPN 100V 16A TO252
IDR224,045.04Reel (1 Reel of 20) -
TRANS DARLINGTON NPN 100V 2A TO220
IDR108,980.71Pack (1 Pack of 10) -
TRANS DARLINGTON NPN 100V 8A DPAK
IDR24,649.15Pack (1 Pack of 2) -
TRANS DARLINGTON NPN 100V 8A TO220
IDR77,618.60Tube (1 Tube of 5) -
TRANS DARLINGTON NPN 100V 8A TO220
IDR486,689.60Tube (1 Tube of 50) -
TRANS DARLINGTON NPN 100V 8A TO220AB
IDR21,922.01 -
TRANS DARLINGTON NPN 50V 0.5A PDIP18
IDR786,360.33Tube (1 Tube of 20) -
TRANS DARLINGTON NPN 50V 0.5A PDIP18
IDR738,425.60Tube (1 Tube of 20) -
TRANS DARLINGTON NPN 50V 0.5A PDIP18
IDR963,099.98Tube (1 Tube of 20) -
TRANS DARLINGTON NPN 50V 0.5A SOIC18
IDR1,075,437.17Tube (1 Tube of 40) -
TRANS DARLINGTON NPN 50V 0.5A SOIC18
IDR0.00
