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 81 - 100 av 474 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 166-2819
Tillv. art.nrPZTA28
VarumärkeON Semiconductor
1,047 kr
Each (On a Reel of 4000)
Enheter
NPN 800 mA 80 V 12 V SOT-223 Surface Mount 3 + Tab - Single 1 10000 2 V 80 V 1.5 V
RS-artikelnummer 125-0070
Tillv. art.nrMJD112T4G
VarumärkeON Semiconductor
1,73 kr
Each (On a Reel of 2500)
Enheter
NPN 4 A 100 V 5 V DPAK (TO-252) Surface Mount 3 - Single 1 200 4 V 100 V 3 V
RS-artikelnummer 197-7631
Tillv. art.nrULN2003ADR
VarumärkeTexas Instruments
1,935 kr
Each (On a Reel of 2500)
Enheter
NPN - 50 V - SOIC - 16 - - 7 - - - -
RS-artikelnummer 545-2333
Tillv. art.nrBD678AG
VarumärkeON Semiconductor
5,274 kr
Each (In a Pack of 5)
Enheter
PNP 4 A 60 V 5 V TO-225 Through Hole 3 - Single 1 750 - 60 V 2.8 V
RS-artikelnummer 816-7817
Tillv. art.nrBST51
VarumärkeNexperia
2,781 kr
Each (In a Pack of 10)
Enheter
NPN 1 A 60 V 5 V SOT-89 Surface Mount 3 - Single 2 1000 1.9 V 80 V 1.3 V
RS-artikelnummer 545-0078
Tillv. art.nrBD675G
VarumärkeON Semiconductor
4,76 kr
Each
Enheter
NPN 4 A 45 V 5 V TO-225 Through Hole 3 - Single 1 750 - 45 V 2.5 V
RS-artikelnummer 121-9472
Tillv. art.nrBCV49TA
VarumärkeDiodesZetex
1,17 kr
Each (On a Reel of 1000)
Enheter
NPN 500 mA 60 V 10 V SOT-89 Surface Mount 3 - Single 1 2000 1.5 V 80 V 1 V
RS-artikelnummer 313-3197
Tillv. art.nrBU931P
VarumärkeSTMicroelectronics
28,44 kr
Each
Enheter
NPN 15 A 400 V 5 V TO-247 Through Hole 3 - Single 1 300 2.5 V - 1.8 V
RS-artikelnummer 166-2351
Tillv. art.nrKSH127TF
VarumärkeON Semiconductor
2,146 kr
Each (On a Reel of 2000)
Enheter
PNP -8 A 100 V -5 V DPAK (TO-252) Surface Mount 3 - Single 1 100 -4.5 V -100 V -2 V
RS-artikelnummer 168-6439
Tillv. art.nrTIP105
VarumärkeSTMicroelectronics
6,165 kr
Each (In a Tube of 50)
Enheter
PNP 8 A 60 V 5 V TO-220 Through Hole 3 - Single 1 200 - 60 V 2.5 V
RS-artikelnummer 752-8205
Tillv. art.nrBSP60H6327XTSA1
VarumärkeInfineon
2,978 kr
Each (In a Pack of 10)
Enheter
PNP 1 A 45 V 5 V SOT-223 Surface Mount 3 + Tab - Single 1 1000 2.2 V 60 V 1.8 V
RS-artikelnummer 313-6944
Tillv. art.nrBD677
VarumärkeSTMicroelectronics
3,31 kr
Each
Enheter
NPN 4 A 60 V 5 V SOT-32 Through Hole 3 - Single 1 750 - 60 V 2.5 V
RS-artikelnummer 103-5056
Tillv. art.nrMJD122G
VarumärkeON Semiconductor
4,198 kr
Each (In a Tube of 75)
Enheter
NPN 8 A 100 V 5 V DPAK (TO-252) Surface Mount 3 - Single 1 100 4.5 V 100 V 4 V
RS-artikelnummer 485-9042
Tillv. art.nrBDW93C
VarumärkeSTMicroelectronics
6,452 kr
Each (In a Pack of 5)
Enheter
NPN 12 A 100 V - TO-220 Through Hole 3 - Single 1 100 4 V 100 V 3 V
RS-artikelnummer 122-0072
Tillv. art.nrBD681G
VarumärkeON Semiconductor
2,846 kr
Each (In a Box of 500)
Enheter
NPN 4 A 100 V 5 V TO-225 Through Hole 3 - Single 1 750 - 100 V 2.5 V
RS-artikelnummer 484-5251
Tillv. art.nrBSP50,115
VarumärkeNexperia
4,457 kr
Each (In a Pack of 10)
Enheter
NPN 1 A 45 V 5 V SOT-223 (SC-73) Surface Mount 4 - Single 1 1000 1.9 V 60 V 1.3 V
RS-artikelnummer 163-2365
Tillv. art.nrBD679AG
VarumärkeON Semiconductor
3,067 kr
Each (In a Box of 500)
Enheter
NPN 4 A 80 V 5 V TO-225 Through Hole 3 - Single 1 750 - 80 V 2.8 V
RS-artikelnummer 197-7632
Tillv. art.nrULN2003ADR
VarumärkeTexas Instruments
3,822 kr
Each (In a Pack of 25)
Enheter
NPN - 50 V - SOIC - 16 - - 7 - - - -
RS-artikelnummer 484-2707
Tillv. art.nrBST52,115
VarumärkeNexperia
1,824 kr
Each (In a Pack of 5)
Enheter
NPN 1 A 80 V 5 V UPAK Surface Mount 4 - Single 1 1000 1.9 V 90 V 1.3 V
RS-artikelnummer 186-8049
Tillv. art.nrMJF6388G
VarumärkeON Semiconductor
12,946 kr
Each (In a Pack of 10)
Enheter
NPN 10 A dc 100 V dc 5 V dc TO-220 Through Hole 3 Single Single 1 100 - 100 V dc 3 V dc
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 ...
A broad range of NPN and PNP Bipolar ...
Description:
A broad range of NPN and PNP Bipolar Transistors from STMicroelectronics including General Purpose, Darlington, Power and High-Voltage devices in both SMT and Through-hole packages.
A range of Darlington transistor arrays from Texas ...
Description:
A range of Darlington transistor arrays from Texas Instruments suitable for a wide range of medium to high current driver applications.
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.