Best NPN BJT Transistors of 2026

Brian Howie Avatar
Brian Howie
Last Updated: Jan 9, 2026

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NPN BJT transistors are a type of semiconductor device commonly used in electronic circuits. These transistors consist of three layers of semiconductor material, with two layers of n-type material sandwiching a layer of p-type material. When a voltage is applied to the base of the transistor, a current flows through the transistor from the collector to the emitter. NPN BJT transistors are widely used in amplifiers, switches, and other electronic devices due to their high gain and low noise characteristics. They are available in a range of sizes and specifications to suit different applications.

At a Glance: Our Top Picks

BOJACK Power Transistor Assortment Kit Cover #TOP 1
BOJACK Power Transistor Assortment Kit
ftb score rating icon 9.9
BOJACK 2N3904 NPN General Purpose Transistors (200 Pack) Cover #TOP 2
BOJACK 2N3904 NPN General Purpose Transistors (200 Pack)
ftb score rating icon 9.8
BOJACK 2N2222 NPN Transistors (Pack of 200 Pcs) Cover #TOP 3
BOJACK 2N2222 NPN Transistors (Pack of 200 Pcs)
ftb score rating icon 9.6

Top 10 NPN BJT Transistors

#TOP 1

BOJACK Power Transistor Assortment Kit

BJ-TR10
25 Piece
BOJACK Power Transistor Assortment Kit Cover
BOJACK 10 Values 250 Pcs A1015 BC327 BC337 C1815 S8050 S8550 2N2222 2N2907 2N3904 2N3906 PNP NPN Power General Purpose Transistors Assortment Kit

BOJACK has created a high-quality assortment kit of 250 power transistors. The kit includes 10 different values of PNP and NPN transistors, with 25 pieces of each model. The rugged, re-sealable plastic storage case makes it easy to keep your transistors organized and protected.

What We Like
Includes 10 different values of PNP and NPN transistors
Each model has 25 pieces
High-quality assortment kit
#TOP 2

BOJACK 2N3904 NPN General Purpose Transistors (200 Pack)

BJ-TR22
200 Piece
BOJACK 2N3904 NPN General Purpose Transistors (200 Pack) Cover
BOJACK 2N3904 NPN 60V 0.2A 0.625W 300MHZ Power General Purpose Transistors (Pack of 200)

The BOJACK 2N3904 Transistors are high-quality NPN bipolar junction transistors designed for general-purpose use. With a voltage rating of 60V and a current capacity of 0.2A, these transistors are suitable for various electronic projects and applications. They can handle up to 0.625W of power, ensuring reliable performance in your circuits. Additionally, their frequency capability of 300MHz makes them versatile for high-speed switching tasks. You’ll appreciate that these transistors come in a convenient pack of 200, stored in a durable, resealable plastic case, making it easy to keep them organized and accessible for your workbench.

What We Like
High voltage rating
Moderate current capacity
Reliable power handling
Wide frequency range
Convenient packaging
#TOP 3

BOJACK 2N2222 NPN Transistors (Pack of 200 Pcs)

BJ-TR22
200 Piece
BOJACK 2N2222 NPN Transistors (Pack of 200 Pcs) Cover
BOJACK 2N2222 NPN 60V 0.8A 0.5W 250MHZ Power General Purpose Transistors (Pack of 200)

BOJACK 2N2222 NPN Transistors are high-quality general-purpose transistors. They have a maximum collector-emitter voltage of 60V, a maximum collector current of 0.8A, a maximum power dissipation of 0.5W, and a maximum frequency of 250MHZ. The pack includes 200 pieces of transistors and comes in a convenient re-sealable plastic storage case, which makes it easy to store and organize the transistors.

What We Like
High-quality general-purpose transistors
Convenient re-sealable plastic storage case included
Large pack of 200 pieces
#TOP 4

210 PNP and NPN Assorted Transistors with Resistors Kit

EAN0721248989178
Black
210 PNP and NPN Assorted Transistors with Resistors Kit Cover
Transistors Assortment Kit with Resistor Pack, 210 PNP and NPN BJT Transistors with 250 1/4 W metal film Resistors - Bipolar Transistors 2N3904 2N3906 S8050 2N2907 S8550 2N2222 BC337 C1815 BC327 A1015

This BJT Transistors Assortment Kit includes 210 pieces of PNP and NPN transistors, such as 2N3904, 2N3906, S8050, 2N2907, S8550, 2N2222, BC337, C1815, BC327, A1015, to ensure you have the right one for your circuit. Additionally, it comes with a bonus kit of 250 pieces of ¼ W metal film resistors that are commonly used in electronic circuits. The durable plastic storage box included makes it easy to organize and transport the transistors. Plus, it is backed by a 30-day money-back guarantee.

What We Like
Comes with 210 pieces of PNP and NPN transistors
Bonus kit of 250 pieces of ¼ W metal film resistors included
Durable plastic storage box included for easy organization and transport
#TOP 5

Adafruit PN2222 NPN Bipolar Transistors 10-Pack

8541585596
10 Piece
Adafruit PN2222 NPN Bipolar Transistors 10-Pack Cover
Adafruit NPN Bipolar Transistors (PN2222) - 10 pack [ADA756]

The Adafruit PN2222 Transistors are compact and powerful electronic switches that let you control medium-power devices like small motors, solenoids, or infrared LEDs with ease. These transistors can handle peak voltages up to 40V and currents up to 1A, giving you reliable performance for your projects that need short bursts of higher power. With a DC gain around 100, they effectively amplify signals, helping you manage your circuits more efficiently. This 10-pack ensures you have enough transistors on hand for multiple projects or replacements, making it a convenient choice for hobbyists and makers.

What We Like
High peak voltage handling
Supports 1A peak current
Good signal amplification
Controls medium-power devices
Pack of 10 units
#TOP 6

EEEE 30 Model Transistor Kit

EE918A
300 Piece
EEEE 30 Model Transistor Kit Cover
EEEEE 30 Kinds 300pcs Assorted Type General Purpose TO92 Transistors PNP NPN Bipolar Power Transistor Assortment Kit with Individual Compartment (300pcs 30 Models)

The EEEE Transistor Assortment Kit offers a versatile selection of 300 transistors, including both NPN and PNP types. With 30 individual compartments, you'll easily find the specific transistor you need for your projects. This organization helps you save time and reduces frustration when working on electronics. The kit includes a variety of models, allowing you to experiment and find the perfect fit for different applications. Whether you're a hobbyist or a professional, this assortment provides the convenience and flexibility you need to tackle various tasks efficiently.

What We Like
Variety of 30 models
Easy organization
NPN and PNP types
300 pieces included
#TOP 7

ALLECIN 2N5088 BJT Transistor Pack

Transistor
ALLECIN 2N5088 BJT Transistor Pack Cover
ALLECIN 2N5088 BJT Transistor 0.05A 30V 2N5088G 2N5088BU NPN Power Silicon Transistors 0.05 Amp 30 Volt TO-92 (Pack of 20pcs)

The ALLECIN 2N5088 Transistor is a reliable electronic component that offers a continuous collector current of 0.05A and a collector-emitter voltage of 30V. This means you can depend on it for various applications, ensuring consistent performance in your projects. Its long service life enhances durability, allowing you to use it without frequent replacements. The transistor's reliability ensures that you can trust it to function properly, which is crucial for your electronic designs. Additionally, the user-friendly packaging simplifies storage and accessibility, making it convenient for you to identify and use the transistors when needed.

What We Like
Reliable performance
Long service life
Easy to store
Wide application usage
#TOP 8

Chanzon BC547B High-Frequency NPN Transistor 100pcs

BC547B-TO-92-100
Black
TO-92
Chanzon BC547B High-Frequency NPN Transistor 100pcs Cover
Chanzon BC547B BC547 TO-92 NPN Power BJT Bipolar Junction Transistor, High-Frequency Silicon Power Transistor (Pack of 100pcs)

The Chanzon BC547B Transistor Pack is a set of 100 high-frequency NPN bipolar junction transistors ideal for various electronic projects. These transistors handle a power dissipation of 0.625W and a collector current of 0.1A, making them suitable for low-power applications. With a maximum voltage rating of 50V between collector and base, and 45V between collector and emitter, you get reliable performance under typical operating conditions. The transistor’s high characteristic frequency of up to 150MHz ensures it works well in high-speed circuits, while its strong current gain helps you achieve efficient amplification and signal processing. This pack is perfect for hobbyists and professionals looking for dependable components.

What We Like
High-frequency operation
Good current gain
Moderate power dissipation
Voltage ratings for reliability
#TOP 9

ALLECIN 2N3904 NPN General Purpose Transistors 200 Pack

2N3904
2N3904
ALLECIN 2N3904 NPN General Purpose Transistors 200 Pack Cover
ALLECIN 2N3904 Transistors Silicon NPN General Purpose Amplifier Transistor TO-92 60V 200mA (Pack of 200pcs)

The ALLECIN 2N3904 Transistors are designed to serve as versatile amplifiers and switches, making them ideal for a wide range of electronic projects and experiments. With a collector-to-base voltage rating of 60V, these transistors can handle moderate voltage levels safely, giving you reliable performance. They support a collector current of up to 200mA, allowing you to work with various circuit demands without worry. Packaged in the compact TO-92 casing, these transistors are easy to handle and install in your DIY electronics projects. The ALLECIN 2N3904 Transistors offer convenience and flexibility for both beginners and experienced users.

What We Like
General-purpose use
60V collector-base voltage
200mA collector current
Compact TO-92 package
#TOP 10

Bridgold B772 D882 PNP NPN Power Transistors

bg-285
Bridgold B772 D882 PNP NPN Power Transistors Cover
Bridgold 40pcs(20pcs 2SB772+20pcs 2SD882) B772 D882 PNP NPN Epitaxial Planar Silicon Power Transistors 3A 40V,TO-126.

The Bridgold Power Transistors come with a high current capacity of up to 3A, making them suitable for projects that require strong power output. They feature a low saturation voltage, which means they operate efficiently with minimal energy loss, saving you power and reducing heat. These transistors are designed as complementary pairs (PNP and NPN), allowing you to create balanced circuits easily. Additionally, the product is new and offers stable performance, ensuring reliability in your electronic designs. Overall, these transistors provide you with efficient, dependable components for various power applications.

What We Like
High current output
Low saturation voltage
Complementary transistor pairs
Stable performance
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What is NPN transistor BJT?

NPN transistors are a type of bipolar transistor with three layers that are used for signal amplification. It is a device that is controlled by the current. A negative-positive-negative transistor is denoted by the abbreviation NPN.

2. What are NPN transistors used in?

NPN transistors are mainly used in switching applications. Used in amplifying circuit applications. Used in the Darlington pair circuits to amplify weak signals. NPN transistors are used in the applications where there is a need to sink a current.

3. Is BJT and NPN same?

BJTs are of two types namely NPN and PNP based on doping types of the three main terminals. An NPN transistor consists of two semiconductor junctions that have a thin p-doped anode region and PNP transistor also consists of two semiconductor junctions that have a thin n- doped cathode region.

4. Is BJT NPN or PNP?

BJTs are made of doped materials and can be configured as NPN and PNP. A transistor is an active device with three terminals, and these three terminals are known as the Emitter (E), the Base (B), and the Collector (C) (Fig. 1).

Editor's Notes

During our npn bjt transistor research, we found 24 npn bjt transistor products and shortlisted 10 quality products. We collected and analyzed 18,454 customer reviews through our big data system to write the npn bjt transistors list. We found that most customers choose npn bjt transistors with an average price of $7.26.

The npn bjt transistors are available for purchase. We have researched hundreds of brands and picked the top brands of npn bjt transistors, including BOJACK, Plusivo, Adafruit, EEEEE, ALLECIN. The seller of top 1 product has received honest feedback from 3,140 consumers with an average rating of 4.8.

Written by
Brian Howie Avatar

Brian Howie is a content writer and senior industrial designer. After graduation from Westminster College, he has been engaged in product design and manufacturing for 18 years. Brian Howie has always found great pleasure in designing industrial products and sharing his ideas and experience online.