Electronics & Computing

The Best Darlington Transistors

1 min read WeKompare Editorial Team Products verified: August 31, 2026 10 products compared

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Darlington transistors are essential components in many electronic circuits, offering high current gain for amplification and switching applications. Selecting the appropriate transistor is crucial for circuit performance, reliability, and efficiency. Understanding key specifications will help you choose the best Darlington transistor for your specific project needs.

No. 1
BOJACK 10 Values 50 Pcs Silicon Epitaxial Power Transistor TIP31C TIP32C TIP41C TIP42C TIP120 TIP121 TIP...
BOJACK 10 Values 50 Pcs Silicon Epitaxial Power Transistor TIP31C TIP32C TIP41C TIP42C TIP120 TIP121 TIP...
  • BOJACK 10 Values TIP Series Assortment Kit
  • Product Name: Darlington Transistors
  • Model: 10 Type: NPN-(TIP31C,TIP41C,TIP120,TIP121,TIP122),PNP-(TIP32C,TIP42C,TIP125,TIP126,TIP127 )
  • RoHS Compliant
  • Package Quantity: 50 Pcs (Each model 5 pcs), Packed in A Plastic Storage Case.
$15.99
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No. 2
(Pack of 20) MPSA13 TO-92 NPN Plastic-Encapsulate Darlington Transistors 30V 500mA 625mW hFE: 5000-10000
(Pack of 20) MPSA13 TO-92 NPN Plastic-Encapsulate Darlington Transistors 30V 500mA 625mW hFE: 5000-10000
  • NPN Darlington Transistor
  • Part Number: MPSA13; Package: TO-92
  • Vceo: 30V; Ic: 500mA; Pd: 625mW
  • hFE: 5000(@Vce=5V, Ic=10mA); hFE: 10000(@Vce=5V, Ic=100mA)
  • Package Quantity: 20
$5.99
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No. 3
12 Values 54 Pcs Darlington Transistors Bipolar Power Transistor TIP31C TIP32C TIP41C TIP42C TIP120 TIP...
12 Values 54 Pcs Darlington Transistors Bipolar Power Transistor TIP31C TIP32C TIP41C TIP42C TIP120 TIP...
  • Minidodoca 12 Values TIP Series Darlington Transistors & Bipolar transistors Assortment Kit
  • Structure:NPN-(TIP31C,TIP41C,TIP120,TIP121,TIP122,TIP142T),PNP-(TIP32C,TIP42C,TIP125,TIP126,TIP127,TIP147T)
  • Category：Bipolar transistors-(TIP31C,TIP41C,TIP32C,TIP42C,) Darlington Transistors(TIP120,TIP121,TIP122,TIP125,TIP126,TIP127,TIP42C,TIP147T)
  • Package type：TO-220
  • Package Quantity: 54 Pcs (TIP31C=5pcs,TIP41C=5pcs,TIP120=5pcs,TIP121=5pcs,TIP122=5pcs,TIP32C=5pcs,TIP42C=5pcs,TIP125=5pcs,TIP126=5pcs,TIP127=5pcs,TIP147T=2pcs,TIP142T=2pcs) Packed in A Plastic Storage Case.
$13.99
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No. 4
Minidodoca 31 Kinds 580pcs Assorted Type General Purpose TO92 Transistors PNP NPN Bipolar Power Transistor...
Minidodoca 31 Kinds 580pcs Assorted Type General Purpose TO92 Transistors PNP NPN Bipolar Power Transistor...
  • Minidodoca 31 values 580pcs High Quality BJT, Mosfets, Darlington Power Transistors Assortment Kit.
  • Transistor Type: PNP & NPN
  • Package form：TO-92
  • Transistor Model: 2n7000 A42 BC327 BC337 BC517 BC546 BC547 BC548 BC549 BC550 BC556 BC557 BC559 2N2222A 2N2907 2N3904 2N3906 2N4401 2N5088 2N5401 2N5551 SS8550 SS8050 S8050 S8550 S9014 S9015 S9018 A733 A1015 C1815
  • Equipped with tweezers for easy removal and insertion of products
$13.84
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No. 5
ALLECIN TIP120 120 Epitaxial Darlington NPN Transistor 5A 60V TIP120-R Power Transistors 5 Amp 60 Volt (Pack...
ALLECIN TIP120 120 Epitaxial Darlington NPN Transistor 5A 60V TIP120-R Power Transistors 5 Amp 60 Volt (Pack...
  • ALLECIN TIP120 120 Epitaxial Darlington NPN Transistor - commonly used electronic components.
  • Current Rated: 5A ; Voltage Rated: 60V ; Power: 2W.
  • Features & Advantages: High power load capacity & Long service life & Durable material.
  • Widely Application: TIP120 120 Epitaxial Darlington NPN Transistor is widely used in various applications.
  • Humanized packaging for easy storage and use. # Printed markings for easy identification.
$8.99
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No. 6
50PCS TIP120 TIP122 TIP125 TIP127 TIP142 TIP147 Darlington Transistor
50PCS TIP120 TIP122 TIP125 TIP127 TIP142 TIP147 Darlington Transistor
  • 50PCS 10Values Transistor TIP102 TIP105 TIP107 TIP112 TIP120 TIP122 TIP125 TIP127 TIP142 TIP147 Darlington Transistors TO-220 Silicon Epitaxial Power Transistor
  • TIP102 102 Bipolar (BJT) Single NPN Darlington Transistor, 100 V/8 A,3-Pin TO-220; TIP105 Silicon PNP Darlington Power Transistors TO-220
  • TIP107 TO-220 PNP Darlington Power Bipolar Junction Transistor; TIP112 TO-220 TIP112TU TO220 Darlington Transistors
  • TIP120 NPN 5A 60V Silicon Epitaxial Power Transistor 5 amp 60 Volt Darlington Transistors ; TIP122 NPN 5A 100V Silicon Epitaxial Power Transistor 5 amp 100 Volt Darlington Transistors TO-220
  • TIP125 PNP Darlington Bipolar Power Transistor -60v HFE:1000,3-Pin; TIP127 PNP BJT Transistors Darlington Bipolar Power Transistor 5A -100v 3Pins
  • TIP142 TIP142T NPN Silicon Power Transistor 10A 100V Darlington Transistors 10 Amp 100 Volt TO-220 ;TIP147T TO-220 TIP147 TO220 Power TRANSISTORS
$9.99
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No. 7
3 Pieces TIP120 Power Darlington Transistors
3 Pieces TIP120 Power Darlington Transistors
  • Price For: Pack of 3 Manufacturer: Adafruit Product Category: Adafruit Accessories RoHS: Product: Semiconductors Type: Darlington Transistors Brand: Adafruit Packaging: Reel
$4.75
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No. 8
Bridgold 20pcs MPSA13 MPSA NPN Silicon Darlington Transistor 30V, TO-92
Bridgold 20pcs MPSA13 MPSA NPN Silicon Darlington Transistor 30V, TO-92
  • Capable of 1.5Watts of Power Dissipation
  • Collector-current 500mA
  • Collector-base Voltage 30V
  • Darlington Transistors
  • NOTE:Exposure to absolute maximum rating conditions for extended periods may affect device reliability
$6.99
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No. 9
Chanzon 10pcs TIP120 TO-220-3L NPN Darlington Power Bipolar Transistor
Chanzon 10pcs TIP120 TO-220-3L NPN Darlington Power Bipolar Transistor
  • Transistor Type: High Performance NPN Darlington Bipolar Junction Transistor (Bjt).
  • Specification: Capable of managing collector-emitter saturation voltage (VCE(sat)) at 4V, collector dissipation power (PC) up to 65W, collector current (IC) up to 5A, max voltage for collector-base (VCBO) at 60V, collector-emitter (VCEO) at 60V and...
  • Transistor Polarity: NPN Polarity ensuring efficient current flow from the collector to the emitter.
  • Application: Ideal for usage in a variety of electronic circuits such as power supplies and motor controls, providing both switching and amplification functionalities.
  • Package: Comes in a pack of 10, each sealed in an Anti-Static bag ensuring electrostatic protection, ESD safety, and extended shelf life.
$6.99
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No. 10
ALLECIN ULN2803 ULN2803APG High-Voltage High-Current Eight-Way Darlington Transistor Arrays NPN IC DIP...
ALLECIN ULN2803 ULN2803APG High-Voltage High-Current Eight-Way Darlington Transistor Arrays NPN IC DIP...
  • ALLECIN ULN2803 is high-voltage high-current darlington transistor arrays - Perfectly suitable for variety electronic experiments.
  • Output breakdown voltage: 50 V; Output current: 500 mA.
  • Features: Output clamp diodes & Inputs compatible with various types of logic.
  • Widely Application: solenoids & relays & dc motors & led displays & filament lamps & thermal print-heads & high-power buffers.
  • Humanized packaging for easy storage and use. ### Please confirm the data before purchasing.
$6.99
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Last update on 2026-08-31 / Affiliate links / Images from Amazon Product Advertising API

How to Choose the Best Darlington Transistors

Key Factors for Choosing a Darlington Transistor

When selecting a Darlington transistor, consider the following crucial factors to ensure optimal performance for your electronic projects:
  • Voltage Rating (VCEO): This specifies the maximum voltage the transistor can withstand between the collector and emitter when the base is open. Ensure this rating significantly exceeds the expected operating voltage in your circuit to prevent breakdown and ensure reliability.
  • Current Rating (IC): The continuous collector current rating indicates the maximum current the transistor can handle reliably over extended periods. Choose a transistor with a current rating comfortably above your circuit's maximum expected current draw to avoid overheating and premature failure.
  • Power Dissipation (PD): This value represents the maximum power the transistor can dissipate as heat without damaging itself. Factor in the power consumed by the transistor under its worst-case operating conditions and select a device with adequate power dissipation, potentially requiring a heatsink for higher power applications.

Frequently Asked Questions

What is a Darlington transistor used for?
Darlington transistors are primarily used for applications requiring high current gain, such as amplifying weak signals or acting as a switch for higher current loads. Their structure allows for a significant amplification of the base current to control a much larger collector current.
What is the difference between a bipolar junction transistor (BJT) and a Darlington transistor?
A Darlington transistor is essentially two BJTs connected in a specific configuration to achieve a much higher current gain than a single BJT. This configuration results in increased sensitivity to the base current and a lower base-emitter voltage drop required for activation.
How do I choose the right voltage rating?
The collector-emitter voltage (VCEO) rating should be chosen to be at least 1.5 to 2 times higher than the maximum voltage expected across the transistor in your circuit. This provides a safety margin to prevent the transistor from breaking down under transient voltage spikes.
When is a heatsink necessary for a Darlington transistor?
A heatsink is necessary when the power dissipation of the transistor exceeds its ability to dissipate heat into the surrounding air. If calculations show the transistor will operate near its maximum power rating, a heatsink will help keep it within safe operating temperatures and prevent damage.