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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STMicroelectronics BD682 PNP Darlington Transistor, 4 A 100 V HFE:750, 3-Pin SOT-32
IDR563,049.52Tube (1 Tube of 50) -
STMicroelectronics BD682 PNP Darlington Transistor, 4 A 100 V HFE:750, 3-Pin SOT-32
IDR63,248.67Pack (1 Pack of 5) -
STMicroelectronics BDX33C NPN Darlington Transistor, 10 A 100 V HFE:750, 3-Pin TO-220
IDR143,909.08Pack (1 Pack of 10) -
STMicroelectronics BDX34C PNP Darlington Transistor, 10 A 100 V HFE:750, 3-Pin TO-220
IDR89,366.28Pack (1 Pack of 10) -
STMicroelectronics BTW67-1000, Thyristor 1000V, 32A 80mA
IDR150,412.26 -
STMicroelectronics BTW68-1200RG, Thyristor 1200V, 19A 50mA
IDR137,091.23 -
STMicroelectronics BTW69-600RG, Silicon Controlled Rectifier
IDR106,253.57 -
STMicroelectronics DB3 DIAC 36V, 2A, 2-Pin DO-35
IDR15,628.61Reel (1 Reel of 5) -
STMicroelectronics DB3TG DIAC 34V, 2A, 2-Pin DO-35
IDR113,805.65Pack (1 Pack of 25) -
STMicroelectronics Dual Switching Diode, Isolated, 45A 1200V, 4-Pin ISOTOP STTH9012TV2
IDR413,581.27 -
STMicroelectronics MJD122T4 NPN Darlington Transistor, 16 A 100 V HFE:100, 3-Pin DPAK
IDR224,045.04Reel (1 Reel of 20) -
STMicroelectronics Panel Mount, 3-pin, TRIAC, 600V, Gate Trigger 1.3V 600V
IDR134,049.42 -
STMicroelectronics Panel Mount, 3-pin, TRIAC, 800V, Gate Trigger 1.3V 600V
IDR251,631.11Pack (1 Pack of 2) -
STMicroelectronics Panel Mount, 3-pin, TRIAC, 800V, Gate Trigger 1.3V 600V
IDR131,112.50 -
STMicroelectronics Panel Mount, 3-pin, TRIAC, 800V, Gate Trigger 1.3V 800V
IDR148,734.02 -
-10.00%
STMicroelectronics STGF3NC120HD IGBT, 6 A 1200 V, 3-Pin TO-220FP, Through Hole
IDR165,096.86IDR135,517.88Tube (1 Tube of 5) -
STMicroelectronics STGP7NC60HD IGBT, 25 A 600 V, 3-Pin TO-220, Through Hole
IDR47,724.95Tube (1 Tube of 2) -
STMicroelectronics STGW20NC60VD IGBT, 60 A 600 V, 3-Pin TO-247, Through Hole
IDR49,612.97 -
STMicroelectronics STGW30NC120HD IGBT, 60 A 1200 V, 3-Pin TO-247, Through Hole
IDR147,055.78Pack (1 Pack of 2) -
STMicroelectronics Surface Mount, 3-pin, TRIAC
IDR82,233.76Reel (1 Reel of 5) -
STMicroelectronics Surface Mount, 3-pin, TRIAC, 800V, Gate Trigger 1.3V 800V
IDR235,373.16Pack (1 Pack of 5) -
STMicroelectronics Switching Diode, 2A 600V, 2-Pin DO-41 STTH2R06
IDR87,897.82Pack (1 Pack of 10) -
STMicroelectronics Through Hole, 3-pin, TRIAC, 1200V, Gate Trigger 1.5V 1200V
IDR160,271.92 -
-19.00%
STMicroelectronics Through Hole, 3-pin, TRIAC, 600V, Gate Trigger 1.3V
IDR73,318.11IDR16,992.18Reel (1 Reel of 10)