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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TRIAC 600V 12A 50MA SNUBBERLESS TO-220AB
IDR85,800.02Pack (1 Pack of 5) -
NPN PRE-BIASED SIGNAL TRANSISTOR SOT-23
IDR191,109.58Pack (1 Pack of 200) -
SCR, NXP, BT139-800E
IDR121,252.84Pack (1 Pack of 10) -
MAC8SNG, THY T0220 8A 800V TRIAC
IDR168,453.34Pack (1 Pack of 10) -
MAC16HCMG, THY TO220 16A 600V TRIAC
IDR0.00Tube (1 Tube of 10) -
DUAL THYRISTOR MODULE 1600V 140A TO240AA
IDR682,729.01 -
DTA114EM3T5G, SOT-723 BIAS RESISTOR
IDR412,532.37Tape (1 Tape of 200) -
-19.00%
Z0103MA 5AL2,THYRISTOR TRIAC 600V 1A
IDR73,318.11IDR16,992.18Reel (1 Reel of 10) -
IGBT N-CH 600V 15A 1.5VCE TO220SIS
IDR140,133.04Pack (1 Pack of 5) -
TRIAC 400V 4A SENSITIVE GATE 5MA TO225
IDR64,822.02Bag (1 Bag of 5) -
TRANSISTOR IGBT N-CH 600V 80A TO247
IDR67,968.72 -
TRANSISTOR IGBT N-CH 1.2KV 40A TO-3P(N)
IDR52,340.11 -
IGBT-INVERTER MODULE 1200V 75A
IDR2,067,486.79 -
TRANSISTOR IGBT N-CH 600V 80A TO247
IDR127,965.80 -
TRANS DARLINGTON NPN 100V 10A TO220
IDR143,909.08Pack (1 Pack of 10) -
TRANSISTOR DIGITAL PNP 50V 100MA SOT-23
IDR33,250.13Pack (1 Pack of 25) -
TRANS DARLINGTON NPN 100V 8A DPAK
IDR24,649.15Pack (1 Pack of 2) -
IGBT MODULE HALF-BRIDGE 232A 1200V
IDR1,727,748.08 -
IGBT MODULE HALF-BRIDGE 115A 1200V
IDR1,399,337.49 -
IGBT CHOPPER MODULE 232A 1200V
IDR1,429,755.59 -
AC LINE SWITCH DPAK
IDR82,233.76Reel (1 Reel of 5) -
TRIAC 16A 600V TO220
IDR127,651.13Tube (1 Tube of 5) -
TRIAC 16A 600V TO220
IDR128,490.25Tube (1 Tube of 5) -
TRANSISTOR IGBT N-CH 600V 25A TO220
IDR47,724.95Tube (1 Tube of 2)