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)


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제품설명 단가 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 제품 번호 168-6442
제조사 부품 번호ULN2001D1013TR
₩263.50
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NPN 500 mA 50 V - SOIC Surface Mount 16 - Common Emitter 7 1000 - - 1.6 V
RS 제품 번호 921-5181
제조사 부품 번호ULN2003AIN
₩902.10
Each (In a Tube of 25)
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NPN 500 mA 50 V - PDIP Through Hole 16 - Common Emitter 7 - - - 1.6 V
RS 제품 번호 100-3837
제조사 부품 번호ULN2003AN
₩840.10
Each (In a Tube of 25)
수량
NPN 500 mA 50 V 50 V PDIP Through Hole 16 - Common Emitter 7 - - - 1.6 V
RS 제품 번호 922-2987
제조사 부품 번호ULN2003ADR
₩275.90
Each (On a Reel of 2500)
수량
NPN 500 mA 50 V - SOIC Surface Mount 16 - Common Emitter 7 - - - 1.6 V
RS 제품 번호 121-8478
제조사 부품 번호ULN2003AD
₩624.65
Each (In a Tube of 40)
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NPN 500 mA 50 V 50 V SOIC Surface Mount 16 - Common Emitter 7 - - - 1.6 V
RS 제품 번호 102-4104
제조사 부품 번호TIP147
₩2,515.65
Each (In a Tube of 30)
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PNP 10 A 100 V 5 V TO-247 Through Hole 3 - Single 1 500 - 100 V 3 V
RS 제품 번호 486-0301
제조사 부품 번호TIP147
₩2,999.25
Each
수량
PNP 10 A 100 V 5 V TO-247 Through Hole 3 - Single 1 500 - 100 V 3 V
RS 제품 번호 177-5536
제조사 부품 번호A2982SLWTR-T
₩1,674.00
Each (On a Reel of 1000)
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NPN + PNP 500 mA 50 V - SOIC W Surface Mount 20 - - 8 - - - 2 V
RS 제품 번호 436-8451
제조사 부품 번호ULN2003AN
₩974.95
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NPN 500 mA 50 V 50 V PDIP Through Hole 16 - Common Emitter 7 - - - 1.6 V
RS 제품 번호 790-5397
제조사 부품 번호MJH11022G
제조사ON Semiconductor
₩6,231.00
Each (In a Pack of 2)
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NPN 15 A 250 V 5 V TO-247 Through Hole 3 - Single 1 100 3.8 V 250 V 4 V
RS 제품 번호 545-0494
제조사 부품 번호TIP102G
제조사ON Semiconductor
₩1,381.05
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NPN 8 A 100 V 5 V TO-220AB Through Hole 3 - Single 1 200 - 100 V 2.5 V
RS 제품 번호 545-2513
제조사 부품 번호BDW42G
제조사ON Semiconductor
₩1,357.80
Each (In a Pack of 5)
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NPN 15 A 100 V 5 V TO-220AB Through Hole 3 - Single 1 250 - 100 V 3 V
RS 제품 번호 486-0288
제조사 부품 번호TIP132
₩988.90
Each (In a Pack of 5)
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NPN 8 A 100 V 5 V TO-220 Through Hole 3 - Single 1 500 - 100 V 4 V
RS 제품 번호 124-5325
제조사 부품 번호MJH11022G
제조사ON Semiconductor
₩5,285.50
Each (In a Tube of 30)
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NPN 15 A 250 V 5 V TO-247 Through Hole 3 - Single 1 100 3.8 V 250 V 4 V
RS 제품 번호 163-2366
제조사 부품 번호BDW42G
제조사ON Semiconductor
₩1,080.35
Each (In a Tube of 50)
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NPN 15 A 100 V 5 V TO-220AB Through Hole 3 - Single 1 250 - 100 V 3 V
RS 제품 번호 680-7220
제조사 부품 번호A2982SLWTR-T
₩3,405.35
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NPN + PNP 500 mA 50 V - SOIC W Surface Mount 20 - - 8 - - - 2 V
RS 제품 번호 686-8155
제조사 부품 번호ULN2001D1013TR
₩660.30
Each (In a Pack of 20)
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NPN 500 mA 50 V - SOIC Surface Mount 16 - Common Emitter 7 1000 - - 1.6 V
RS 제품 번호 102-4096
제조사 부품 번호TIP132
₩810.65
Each (In a Tube of 50)
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NPN 8 A 100 V 5 V TO-220 Through Hole 3 - Single 1 500 - 100 V 4 V
RS 제품 번호 732-0887
제조사 부품 번호ULN2003AINE4
₩1,035.40
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NPN 500 mA 50 V - PDIP Through Hole 16 - Common Emitter 7 - - - 1.6 V
RS 제품 번호 858-196
제조사 부품 번호ULN2003AD
₩793.60
Each
수량
NPN 500 mA 50 V 50 V SOIC Surface Mount 16 - Common Emitter 7 - - - 1.6 V