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)
-
Infineon IKW50N60H3FKSA1 IGBT, 100 A 600 V, 3-Pin TO-247, Through Hole
VND346,271.20Pack (1 Pack of 2) -
onsemi NGTB40N65FL2WG IGBT, 80 A 650 V, 3-Pin TO-247, Through Hole
VND346,271.20Pack (1 Pack of 2) -
Infineon IKW25N120T2FKSA1 IGBT, 50 A 1200 V, 3-Pin TO-247, Through Hole
VND347,805.92Tube (1 Tube of 2) -
Diodes Inc DDTC123ECA-7-F NPN Digital Transistor, 100 mA, 50 V, 3-Pin SOT-23
VND349,532.48Pack (1 Pack of 200) -
onsemi FGH30S130P IGBT, 60 A 1300 V, 3-Pin TO-247, Through Hole
VND353,944.80Pack (1 Pack of 2) -
Vishay Switching Diode, 300mA 75V, 2-Pin DO-35 1N4148-TAP
VND362,002.08Pack (1 Pack of 250) -
Infineon IKW30N60H3FKSA1 IGBT, 60 A 600 V, 3-Pin TO-247, Through Hole
VND364,687.84Pack (1 Pack of 4) -
STMicroelectronics ULN2003A, 7-element NPN Darlington Transistor, 500 mA 50 V HFE:1000, 16-Pin PDIP
VND386,557.60Tube (1 Tube of 25) -
onsemi MJ11032G NPN Darlington Transistor, 50 A 120 V HFE:400, 2-Pin TO-204
VND405,357.92 -
STMicroelectronics MJD122T4 NPN Darlington Transistor, 16 A 100 V HFE:100, 3-Pin DPAK
VND409,770.24Reel (1 Reel of 20) -
STMicroelectronics Panel Mount, 3-pin, TRIAC, 800V, Gate Trigger 1.3V 600V
VND414,374.40Pack (1 Pack of 2) -
Vishay Switching Diode, 2-Pin SMA RS1J-E3/61T
VND419,554.08Pack (1 Pack of 50) -
onsemi J111 N-Channel JFET, Idss min. 20mA, 3-Pin TO-92
VND425,884.80Pack (1 Pack of 50) -
onsemi NDB6060L Digital Transistor, 2 + Tab-Pin TO-263AB
VND428,762.40Pack (1 Pack of 5) -
STMicroelectronics Surface Mount, 3-pin, TRIAC, 800V, Gate Trigger 1.3V 800V
VND430,488.96Pack (1 Pack of 5) -
MJ11015G, Darlington Transistor, PNP 30A 120V HFE:200, 3-Pin, TO-204
VND446,795.36Tape (1 Tape of 2) -
STMicroelectronics ULN2004A, 7-element NPN Darlington Transistor, 500 mA 50 V HFE:1000, 16-Pin PDIP
VND464,828.32Tube (1 Tube of 25) -
Infineon IKW40N120T2FKSA1 IGBT, 75 A 1200 V, 3-Pin TO-247, Through Hole
VND465,212.00Tube (1 Tube of 2) -
IXYS IXGH40N120B2D1 IGBT, 75 A 1200 V, 3-Pin TO-247, Through Hole
VND526,984.48 -
Infineon IKW25T120FKSA1 IGBT, 50 A 1200 V, 3-Pin TO-247, Through Hole
VND532,547.84Pack (1 Pack of 3) -
Texas Instruments SN75468N, 7-element NPN Darlington Transistor, 500 mA 100 V, 16-Pin PDIP
VND545,209.28Tube (1 Tube of 25) -
Vishay VS-50RIA120, Thyristor 1200V, 50A 100mA
VND639,786.40 -
Infineon IKP15N60TXKSA1 IGBT, 26 A 600 V, 3-Pin TO-220, Through Hole
VND682,566.72Tube (1 Tube of 10) -
Vishay Switching Diode, 300mA 75V, 2-Pin DO-35 1N914TR
VND699,064.96Pack (1 Pack of 500)