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 Through Hole, 3-pin, TRIAC, 600V, Gate Trigger 1.3V 600V
VND224,713.02Tube (1 Tube of 5) -
Vishay VS-40TPS12A-M3, Thyristor 1200V, 35A 40mA
VND228,269.93 -
Vishay VS-70TPS12PBF, Thyristor 1200V, 70A 100mA
VND232,454.53 -
STMicroelectronics Through Hole, 3-pin, TRIAC, 600V, Gate Trigger 1.3V 600V
VND233,291.45 -
STMicroelectronics BDX33C NPN Darlington Transistor, 10 A 100 V HFE:750, 3-Pin TO-220
VND234,546.83Pack (1 Pack of 10) -
STMicroelectronics STGW30NC120HD IGBT, 60 A 1200 V, 3-Pin TO-247, Through Hole
VND236,639.13Pack (1 Pack of 2) -
STMicroelectronics Through Hole, 3-pin, TRIAC, 600V, Gate Trigger 1.3V 600V
VND238,522.20Pack (1 Pack of 5) -
STMicroelectronics Through Hole, 3-pin, TRIAC, 600V, Gate Trigger 1.3V 600V
VND241,869.88Pack (1 Pack of 5) -
Infineon IKW75N60TFKSA1 IGBT, 80 A 600 V, 3-Pin TO-247, Through Hole
VND241,869.88 -
Vishay Switching Diode, 300mA 75V, 2-Pin DO-35 1N4148-TAP
VND244,171.41Pack (1 Pack of 250) -
STMicroelectronics Panel Mount, 3-pin, TRIAC, 800V, Gate Trigger 1.3V 600V
VND248,356.01 -
Littelfuse Through Hole, 3-pin, TRIAC, 600V, Gate Trigger 2V
VND251,912.92Tube (1 Tube of 2) -
STMicroelectronics Through Hole, 3-pin, TRIAC, 600V, Gate Trigger 1.5V 600V
VND252,331.38Pack (1 Pack of 5) -
Toshiba GT60J323(Q) IGBT, 60 A 600 V, 3-Pin TO-3PLH, Through Hole
VND270,534.39 -
Vishay Switching Diode, 2-Pin SMA RS1J-E3/61T
VND271,789.77Pack (1 Pack of 50) -
STMicroelectronics Panel Mount, 3-pin, TRIAC, 800V, Gate Trigger 1.3V 800V
VND273,045.15 -
STMicroelectronics Panel Mount, 3-pin, TRIAC, 600V, Gate Trigger 1.3V 600V
VND275,346.68 -
STMicroelectronics BTW67-1000, Thyristor 1000V, 32A 80mA
VND277,438.98 -
Infineon IGW50N60TFKSA1 IGBT, 90 A 600 V, 3-Pin TO-247, Through Hole
VND284,552.80Pack (1 Pack of 2) -
STMicroelectronics TIP112 NPN Darlington Transistor, 2 A 100 V HFE:500, 3-Pin TO-220
VND286,226.64Pack (1 Pack of 10) -
Diodes Inc DDTC123ECA-7-F NPN Digital Transistor, 100 mA, 50 V, 3-Pin SOT-23
VND287,063.56Pack (1 Pack of 200) -
onsemi MJH11022G NPN Darlington Transistor, 15 A 250 V HFE:100, 3-Pin TO-247
VND293,131.23Pack (1 Pack of 2) -
Texas Instruments ULN2003AN, 7-element NPN Darlington Transistor, 500 mA 50 V, 16-Pin PDIP
VND293,131.23Tube (1 Tube of 25) -
STMicroelectronics Through Hole, 3-pin, TRIAC, 1200V, Gate Trigger 1.5V 1200V
VND297,106.60