Darlington Pairs

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)


...
Read more Read less

Filter

Visar 1 - 20 av 412 produkter
Resultat per sida
Beskrivning Pris Transistor Type Maximum Continuous Collector Current Maximum Collector Emitter Voltage Maximum Emitter Base Voltage Package Type Mounting Type Pin Count Configuration Transistor Configuration Number of Elements per Chip Minimum DC Current Gain Maximum Base Emitter Saturation Voltage Maximum Collector Base Voltage Maximum Collector Emitter Saturation Voltage
RS-artikelnummer 680-7220
Tillv. art.nrA2982SLWTR-T
30,052 kr
Each (In a Pack of 5)
Enheter
NPN + PNP 500 mA 50 V - SOIC W Surface Mount 20 - - 8 - - - 2 V
RS-artikelnummer 177-5536
Tillv. art.nrA2982SLWTR-T
14,21 kr
Each (On a Reel of 1000)
Enheter
NPN + PNP 500 mA 50 V - SOIC W Surface Mount 20 - - 8 - - - 2 V
RS-artikelnummer 686-8209
Tillv. art.nrULN2003A
VarumärkeSTMicroelectronics
7,369 kr
Each (In a Pack of 20)
Enheter
NPN 500 mA 50 V - PDIP Through Hole 16 - Common Emitter 7 1000 - - 1.6 V
RS-artikelnummer 168-6450
Tillv. art.nrULN2003A
VarumärkeSTMicroelectronics
7,691 kr
Each (In a Tube of 25)
Enheter
NPN 500 mA 50 V - PDIP Through Hole 16 - Common Emitter 7 1000 - - 1.6 V
RS-artikelnummer 714-0509
Tillv. art.nrBDX34C
VarumärkeSTMicroelectronics
7,347 kr
Each (In a Pack of 10)
Enheter
PNP 10 A 100 V - TO-220 Through Hole 3 - Single 1 750 - 100 V 2.5 V
RS-artikelnummer 168-6833
Tillv. art.nrULN2803A
VarumärkeSTMicroelectronics
26,538 kr
Each (In a Tube of 20)
Enheter
NPN 500 mA 50 V 50 V PDIP Through Hole 18 - Common Emitter 8 1000 - - 1.1 V
RS-artikelnummer 714-1167
Tillv. art.nrULN2803A
VarumärkeSTMicroelectronics
29,668 kr
Each (In a Pack of 5)
Enheter
NPN 500 mA 50 V 50 V PDIP Through Hole 18 - Common Emitter 8 1000 - - 1.1 V
RS-artikelnummer 103-5699
Tillv. art.nrBCV49,115
VarumärkeNexperia
1,962 kr
Each (On a Reel of 1000)
Enheter
NPN 500 mA 60 V 10 V UPAK Surface Mount 4 - Single 1 2000 1.5 V 80 V 1 V
RS-artikelnummer 168-6832
Tillv. art.nrULN2802A
VarumärkeSTMicroelectronics
33,107 kr
Each (In a Tube of 20)
Enheter
NPN 500 mA 50 V - PDIP Through Hole 18 - Common Emitter 8 - - - 1.1 V
RS-artikelnummer 866-0196
Tillv. art.nrULN2803ADW
VarumärkeTexas Instruments
16,023 kr
Each (In a Tube of 40)
Enheter
NPN 500 mA 50 V - SOIC Surface Mount 18 - Common Emitter 8 - - - 1.6 V
RS-artikelnummer 109-084
Tillv. art.nrBD679
VarumärkeMagnatec
6,40 kr
Each
Enheter
NPN 4 A 80 V 5 V SOT-32 Through Hole 3 - Single 1 750 - 80 V 2.5 V
RS-artikelnummer 168-6449
Tillv. art.nrULN2002A
VarumärkeSTMicroelectronics
7,529 kr
Each (In a Tube of 25)
Enheter
NPN 500 mA 50 V - PDIP Through Hole 16 - Common Emitter 7 1000 - - 1.6 V
RS-artikelnummer 714-2687
Tillv. art.nrBDX33C
VarumärkeSTMicroelectronics
16,455 kr
Each (In a Pack of 10)
Enheter
NPN 10 A 100 V - TO-220 Through Hole 3 - Single 1 750 - 100 V 2.5 V
RS-artikelnummer 646-6311
Tillv. art.nrULN2803ADW
VarumärkeTexas Instruments
17,68 kr
Each (In a Pack of 5)
Enheter
NPN 500 mA 50 V 50 V SOIC Surface Mount 18 - Common Emitter 8 - - - 1.6 V
RS-artikelnummer 714-1164
Tillv. art.nrULN2802A
VarumärkeSTMicroelectronics
35,98 kr
Each (In a Pack of 5)
Enheter
NPN 500 mA 50 V - PDIP Through Hole 18 - Common Emitter 8 - - - 1.1 V
RS-artikelnummer 484-2331
Tillv. art.nrBCV49,115
VarumärkeNexperia
5,257 kr
Each (In a Pack of 10)
Enheter
NPN 500 mA 60 V 10 V UPAK Surface Mount 4 - Single 1 2000 1.5 V 80 V 1 V
RS-artikelnummer 102-4090
Tillv. art.nrBDX33C
VarumärkeSTMicroelectronics
15,759 kr
Each (In a Tube of 50)
Enheter
NPN 10 A 100 V - TO-220 Through Hole 3 - Single 1 750 - 100 V 2.5 V
RS-artikelnummer 686-8206
Tillv. art.nrULN2002A
VarumärkeSTMicroelectronics
7,337 kr
Each (In a Pack of 20)
Enheter
NPN 500 mA 50 V - PDIP Through Hole 16 - Common Emitter 7 1000 - - 1.6 V
RS-artikelnummer 486-0294
Tillv. art.nrTIP142
VarumärkeSTMicroelectronics
30,968 kr
Each (In a Pack of 5)
Enheter
NPN 10 A 100 V 5 V TO-247 Through Hole 3 - Single 1 500 - 100 V 3 V
RS-artikelnummer 686-8152
Tillv. art.nrULN2002D1013TR
VarumärkeSTMicroelectronics
6,255 kr
Each (In a Pack of 20)
Enheter
NPN 500 mA 50 V - SOIC Surface Mount 16 - Common Emitter 7 1000 - - 1.6 V