Darlington Pairs

What are Darlington Pairs?

Darlington pairs, also called Darlington transistors, are a package of two standard BJT transistors (bipolar junction transistor). One of the transistors is high-gain while the other is high current. 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 micro controller 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.

How do they work?

The emitter of one transistor is connected to the base of the other transistor which effectively creates one transistor.

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 board.

What applications do 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.

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 501 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
21,962 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
11,938 kr
Each (On a Reel of 1000)
Enheter
NPN + PNP 500 mA 50 V - SOIC W Surface Mount 20 - - 8 - - - 2 V
RS-artikelnummer 903-4103
Tillv. art.nrBC516_D27Z
VarumärkeON Semiconductor
0,418 kr
Each (In a Pack of 100)
Enheter
PNP -1 A 30 V -10 V TO-92 Through Hole 3 - Single 1 30000 - -40 V -1 V
RS-artikelnummer 168-6833
Tillv. art.nrULN2803A
VarumärkeSTMicroelectronics
9,255 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 686-8209
Tillv. art.nrULN2003A
VarumärkeSTMicroelectronics
4,783 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 714-0509
Tillv. art.nrBDX34C
VarumärkeSTMicroelectronics
4,322 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 714-1167
Tillv. art.nrULN2803A
VarumärkeSTMicroelectronics
10,732 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 168-6450
Tillv. art.nrULN2003A
VarumärkeSTMicroelectronics
4,351 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 646-6311
Tillv. art.nrULN2803ADW
VarumärkeTexas Instruments
14,91 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 866-0196
Tillv. art.nrULN2803ADW
VarumärkeTexas Instruments
11,465 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 168-6832
Tillv. art.nrULN2802A
VarumärkeSTMicroelectronics
8,474 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 484-2331
Tillv. art.nrBCV49,115
VarumärkeNexperia
3,019 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 109-084
Tillv. art.nrBD679
VarumärkeMagnatec
7,03 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 103-5699
Tillv. art.nrBCV49,115
VarumärkeNexperia
1,226 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 714-1164
Tillv. art.nrULN2802A
VarumärkeSTMicroelectronics
9,864 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 714-2687
Tillv. art.nrBDX33C
VarumärkeSTMicroelectronics
8,706 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 686-8206
Tillv. art.nrULN2002A
VarumärkeSTMicroelectronics
4,297 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 102-4090
Tillv. art.nrBDX33C
VarumärkeSTMicroelectronics
7,914 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 168-6449
Tillv. art.nrULN2002A
VarumärkeSTMicroelectronics
3,904 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 121-6417
Tillv. art.nrMJH11021G
VarumärkeON Semiconductor
28,649 kr
Each (In a Tube of 30)
Enheter
PNP 15 A 250 V 5 V TO-247 Through Hole 3 - Single 1 100 3.8 V 250 V 4 V
Related Products
Darlington transistor power drivers are high-voltage, high-current switch ...
Description:
Darlington transistor power drivers are high-voltage, high-current switch arrays containing multiple open-collector Darlington pairs and integral suppression diodes for inductive loads. The high current rating of each output is 500 mA or higher. The inputs are pinned opposite the outputs ...
Darlington transistor power drivers are high-voltage, high-current switch ...
Description:
Darlington transistor power drivers are high-voltage, high-current switch arrays containing multiple open-collector Darlington pairs and integral suppression diodes for inductive loads. The high current rating of each output is 500 mA or higher. The inputs are pinned opposite the outputs ...
Bipolar Junction Transistors (BJT) broad range provides complete ...
Description:
Bipolar Junction Transistors (BJT) broad range provides complete solutions for various circuit application needs. Innovative packages are designed for minimal size, highest reliability and maximum thermal performance.
Darlington transistor power drivers are high-voltage, high-current switch ...
Description:
Darlington transistor power drivers are high-voltage, high-current switch arrays containing multiple open-collector Darlington pairs and integral suppression diodes for inductive loads. The high current rating of each output is 500 mA or higher. The inputs are pinned opposite the outputs ...