13 best bjt transistors
Bipolar Junction Transistors (BJTs) are semiconductor devices that play a fundamental role in electronics and are widely used in various applications in the fields of industrial electrical and industrial scientific. Here's some information about BJT transistors:
Basic Function: BJTs are three-layer semiconductor devices with three terminals: the emitter, base, and collector. They function as amplifiers or switches in electronic circuits.
Types of BJTs: There are two main types of BJTs - NPN (Negative-Positive-Negative) and PNP (Positive-Negative-Positive), based on the arrangement of the semiconductor layers. NPN transistors are more commonly used.
Amplification: BJTs are often used as amplifiers in electronic circuits. In this mode, a small input current or voltage at the base terminal controls a larger current flow between the collector and emitter terminals.
Switching: BJTs can also be used as electronic switches.When used as a switch, the transistor can be in an "off" state (cut-off) or an "on" state (saturation), depending on the current applied to the base terminal.
Applications: BJTs are found in a wide range of applications, including signal amplification in audio equipment, radio frequency amplification, digital logic gates, and power control in industrial and scientific instruments.
Characteristics: BJTs have certain key characteristics, such as the current gain (hFE or β), which determines the amplification factor, and the voltage drop between the collector and emitter when in the on-state.
Biasing: Proper biasing, or the application of voltage and current to the base terminal, is essential for the BJT to operate in its desired mode, whether as an amplifier or switch.
Heat Dissipation: BJTs can generate heat when used as amplifiers or switches, and therefore, heat sinks or other cooling methods may be necessary to prevent overheating.
Transistor Symbols: In circuit diagrams, NPN and PNP BJTs are represented by specific symbols, making it easy to identify and understand their configuration in a circuit.
Advantages and Disadvantages: BJTs have advantages like high current gain and fast switching speed but may have limitations in terms of power handling and efficiency compared to other transistor types like MOSFETs.
BJT transistors are foundational components in electronics, allowing for signal amplification and control. Their versatility makes them an essential part of industrial electrical and scientific instrumentation.
Below you can find our editor's choice of the best bjt transistors on the market- ✅ GET AN ALL-INCLUSIVE TRANSISTOR ASSORTMENT KIT including a large selection of the most widely used Power Transistors, which you will need in your audio-video, DIY electronics and vehicle repair projects.
- ✅ INVEST IN A HIGH-QUALITY TRANSISTOR SET: Made of top standard materials, our transistors have the high dielectric strength, fast switching speed, large power dissipation and good current performance you need.
- ✅ SAVE MONEY ON BUYING YOUR TRANSISTORS: We offer you a Great Value transistor assortment kit of 600 x 24 Value NPN and PNP Transistors at the most competitive price. Save energy looking for individual pieces!
- ✅ USE THEM FOR COUNTLESS PROJECTS: Find in the package models 2N222, 2N2907, 2N3903, 2N3904, 2N3906, 2N5401, 2N5551, BC327, BC337, BC517, BC547, BC548, BC549, BC550, BC556, BC557, BC558, S8050, S8550, S9012, S9013, S9014, S9015 and S9018 Series.
- ✅ KEEP ALL PIECES IN NEAT ORDER: You will receive our complete transistor assortment kit in a sturdy plastic box with compartments for different parts, which facilitates transportation and can be reused many times.
Product features
LORESO Transistor Assortment Kit Box
Looking for a reliable, all-inclusive set of electronic components for testing devices and unexpected electronics repairs?
Presenting A High-End Gauge Transistor Assortment Set, Released by Loreso!
No need to settle for cheaply-made transistors that give you headaches in use, poorly packaged transistor sets that arrive with missing items or in cases with all the components mixed up.
Why Choose Our Transistors Assortment Set?
Here Are The Top 3 Reasons!
KEEP YOUR PARTS NEATLY ORGANIZED: Unlike many transistor sets that are delivered in messy cases, our kit will reach you with all different parts stored in compartments, for easy access whenever you need them.
HAVE IT AT HAND FOR ALL YOUR PROJECTS: Instead of wasting money and energy looking for separate transistor pieces for your car repair or computer testing, you can invest in a Money Saver set of 600 pieces of most common NPN and PNP Transistors.
RECEIVE YOUR ORDER IN EXCELLENT CONDITION: We walk the extra mile to make sure your set of transistors will reach you in impeccable condition. The durable plastic case facilitates the storage and transportation of your set.
Looking for more Electronics Components? Check other kits below:
- BOJACK High Quality Power Transistors Assortment Kit.
- Product Name: Power Transistors
- Transistor Type: PNP & NPN
- Transistor Model: 10 Values, Include: A1015 PNP, BC327 PNP, BC337NPN, C1815 NPN, S8050 NPN, S8550 PNP, 2N2222 NPN, 2N2907 PNP, 2N3904 NPN, 2N3906 PNP.
- Package Quantity: 250pcs (Each model 25pcs), Packed in A Rugged Convenient Re-sealable Plastic Storage Case.
User questions & answers
Question: | Are the 2n2907 transistors from this kit pnp or npn? i believe 2907 are pnp, yet the online product description and the label from the kit say npn |
Answer: | You're correct, the 2n2907s in this kit test as high-gain PNP, although the kit mislabels them as NPN. |
- BJT Transistor Assortment Kit: It includes the most common PNP and NPN transistors: 2N3904, 2N3906, S8050, 2N2907, S8550, 2N2222, BC337, C1815, BC327, A1015
- Premium Assorted Transistors: With our 210 pcs bipolar transistor pack you will never have to worry about not having the right transistor for your circuit
- Bonus Resistor Kit Included: The transistor kit comes with a 250 pcs bonus resistor assortment kit that includes the most commonly used resistor values, always useful for your electronic circuits
- Durable Plastic Storage Box Included: It helps you to always keep the transistors organized and to transport the transistor kit anywhere - forget about the hassle of keeping the transistors in a bag
- Satisfaction Guarantee: Our transistors assortment pack is backed by our manufacturer 30-day money back guarantee
User questions & answers
Question: | Are these all cbe for the npns and ebc for the pnps? i'm finding some conflicting information about pinouts for some of them depending on manufacture |
Answer: | The BC337 and BC327 transistors are CBE and the rest are EBC. |
Product features
Large assortment of transistors, 21 pieces each type
- 2N3904
- 2N3906
- S8050
- 2N2907
- S8550
- 2N2222
- BC337
- C1815
- BC327
- A1015
Using the right transistor is a big factor in a circuit's performance
A major benefit of the Plusivo BJT Transistor Assortment Kit is that it includes all commonly used PNP and NPN transistors. Having a well designed transistor kit on hand means no more guesswork and frustration when designing and testing your circuits. You can depend on it to always find the transistors you need.
Transistor Kit that You Want
A transistors kit that includes most commonly used transistor types.
A Complete Kit that You Need
A complete transistors assortment kit, so that you always have the PNP and NPN transistors you need.
Ergonomic Design that You Desire
A premium BJT transistor kit that is easy to store and use. It comes with an organizer box that allows you to easily store the transistors. Just open the box and pick up the transistor you need.
A Complete Transistors Kit that comes with a Bonus
Everything you want, need and desire with the Plusivo Transistors Assortment Kit plus a 250 bonus resistor assortment kit.
- ◆ High Quality Power Transistors Kit
- ◆ Product Name: Power Transistors; Transistor Type: NPN PNP
- ◆ Package Content: 675pcs(+/-2%) x Power Transistors, Each Model 45Pcs
- ◆ Model: 15 models, Include: 2N2222 NPN, 2N3904 NPN, 2N3906 PNP, 2N5401 PNP, 2N5551 NPN, A1015 PNP, C1815 NPN, C945 NPN, S8050 NPN, S8550 PNP, S9012 PNP, S9013 NPN, S9014 PNP, S9015 PNP, S9018 NPN
- ◆ Organized Within A Convenient Plastic Storage Case, Plastic Box Can Be Reused
User questions & answers
Question: | Are the leads on these transistors pre-tinned |
Answer: | I looked at the transistors very closely and I believe that they ARE tinned. |
Question: | Is there a datasheet available for the transistors |
Answer: | No. They’re generic and possibly mixed manufacturer. However, a quick google search for the transistor model always gave me the information I needed in the first result or two. Example: the 2N2222 transistor follows http://www.onsemi.com/pub/Collateral/P2N2222A-D.PDF . These are GREAT to have around for the odd project here and there. If you need something precision, I’d go higher end. |
Product features
YOU MAY ALSO LIKE THE FOLLOWINGS:
Product description
Designed for general−purpose amplifier and low−speed switching applications.
Collector Emitter Voltage V(br)ceo:100V
Power Dissipation Pd:80W
DC Collector Current:8A
DC Current Gain hFE:200hFE
Maximum Collector Cut-off Current:0.05mA
Minimum Operating Temperature:-65 °C
Maximum Operating Temperature:+150 °C
Dimensions:10.4 x 4.6 x 9.15mm
Package include
10pcs*TIP102
- High DC Current Gain − hFE = 2500 (Typ) @ IC = 4.0 Adc
- Collector−Emitter Sustaining Voltage − @ 30 mAdc VCEO(sus) = 100 Vdc (Min) − TIP102, TIP107
- Monolithic Construction with Built−in Base−Emitter Shunt Resistors
- Low Collector−Emitter Saturation Voltage − VCE(sat) = 2.0 Vdc (Max) @ IC = 3.0 Adc = 2.5 Vdc (Max) @ IC = 8.0 Adc
- We have undergone rigorous testing and stable performance
Product description
Transistor Assortment Kit, 434 pcs, 24 values, BJT, Mosfet, Germanium, Darlington, JFET
BJTs:
2n3904 (NPN), 20 pcs
2n3906 (PNP), 20 pcs
General-purpose low-power Transistors
2n5551 (NPN), 20 pcs
2n5401 (PNP), 20 pcs
Commonly used for amplification of audio or other low power signals.
C945 (NPN), 20 pcs
A733 (PNP), 20 pcs
Widely used in amplifier applications for pre-amplifying purpose, in high frequency circuits.
C1815 (NPN), 20 pcs
A1015 (PNP), 20 pcs
For audio frequency amplification and high frequency OS.
SS8050 (NPN), 20 pcs
SS8550 (PNP), 20 pcs
Commonly used in push pull configuration with Class B amplifier.
S9014 (NNP), 20 pcs
S9015 (PNP), 20 pcs
Designed for use in the audio output stage and converter/inverter circuits.
BC327 (PNP), 20 pcs
BC337 (NPN), 20 pcs
Can be used for switching and amplification purposes.
BC547 (NPN), 20 pcs
BC557 (PNP), 20 pcs
General Purpose
BC548 (NPN), 20 pcs
BC558 (PNP), 20 pcs
General Purpose
2n5088 (NPN), 10 pcs
High Gain, Low Noise
2n2222a (NPN), 20 pcs
General Purpose
MOSFET:
2n7000, 20 pcs
Used as a driver for motors, relays and lamps, relays.
DARLINGTON:
BC517 (NPN), 20 pcs
Used to drive LEDs, Relays, motors, other transistors and parts of circuits in an electronic circuit under 1200mA.
GERMANIUM:
3AX31 (PNP), 2 pcs
Used for radio, audio, guitar circuits.
JFET:
J201, 2 pcs
High input impedance, low noise, used for cascode Amplifier, buffers, phase shift circuits
Transistor Sockets, 20 pcs
- 434 pcs 24 values Transistor Assortment Box
- Includes BJT, Mosfets, JFET, Darlington, Germanium, NPN and PNP Transistors:
- BJTs: 2n3904, 2n3906, 2n5551, 2n5401, C945, A733, C1815, A1015, SS8050, SS8550, S9014, S9015, BC327, BC337, BC547, BC557, BC548, BC558, 2n5088, 2n2222
- MosFET: 2n7000, Darlington: BC517, Germanium: 3AX31, JFET: J201
- Transistors come sorted accordingly in a labeled and handy box, includes 20 pcs Transistor Sockets
Product description
The Darlington Bipolar Power Transistor is designed for general-purpose amplifier and low-speed switching applications. TIP122, (NPN); TIP127 (PNP) are complementary devices.
Transistor Polarity:PNP
Power Dissipation Pd:65w
DC Collector Current:-5A
Collector Emitter Voltage V(br)ceo:-100V
DC Current Gain hFE:1000hFE
Transistor Case Style:TO-220
Minimum Operating Temperature:-65 °C
Operating Temperature Max:150°C
Dimensions:10.4 x 4.6 x 9.15mm
Package include:
20pcs*TIP127
- Collector-Emitter Sustaining Voltage @ 100 mA VCEO(sus) = 100 Vdc (Min) TIP122, TIP127
- Low Collector-Emitter Saturation Voltage VCE(sat) = 2.0 Vdc (Max) @ IC= 3.0 Adc = 4.0 Vdc (Max) @ IC= 5.0 Adc
- High DC Current Gain - hFE = 2500 (typ) @ IC = 4.0 Adc
- Compact TO-220 AB Package
- Monolithic construction with built-in base-emitter shunt resistors
Product description
Part Status:Active
Transistor Type:NPN
Current - Collector (Ic) (Max):6A
Voltage - Collector Emitter Breakdown (Max):100V
Vce Saturation (Max) @ Ib, Ic:1.5V @ 600mA, 6A
Current - Collector Cutoff (Max):700µA
DC Current Gain (hFE) (Min) @ Ic, Vce:15 @ 3A, 4V
Power - Max:2W
Frequency - Transition:3MHz
Operating Temperature:150°C (TJ)
Mounting Type:Through Hole
Package / Case:TO-220-3
Supplier Device Package:TO-220-3
Base Part Number:TIP41
- (Pack of 15 Pieces) tip41c Bipolar (BJT) Transistor NPN 100V 6A 3MHz 2W Through Hole TO-220-3
Product description
TIP120 product info
Configuration: Single
Transistor Polarity: NPN
Collector- Emitter Voltage VCEO Max: 60 V
Emitter- Base Voltage VEBO: 5 V Collector- Base Voltage VCBO: 60 V
Maximum DC Collector Current: 5 A
Maximum Collector Cut-off Current: 200 uA
Mounting Style: Through Hole
Package / Case: TO-220-3 Maximum
Operating Temperature: + 150 C
Series: Darlingtons
Height: 9.15 mm Length: 10.4 mm Width: 4.6 mm
Brand: STMicroelectronics
1N4001 product info
Configuration:Single
Current, Forward, Continuous:1 A
Current, On-State, Non-Repetitive Peak:30 A
Current, Peak:10 μA
Current, Reverse:1 μA
Current, Surge:30 A
Diameter:2.7 mm
Dimensions:2.7 Dia. x 5.2 L mm
Diode Type:Standard Recovery Rectifier
Length:0.204" (5.2mm)
Mounting Type:Through Hole
Number of Pins:2
Package Type:DO-41
Primary Type:Rectifier
Rectifier Type:Switching
Speed, Switching:Standard
Temperature, Junction, Maximum:+175 °C
Temperature, Operating:-65 to +175 °C
Temperature, Operating, Maximum:+175 °C
Temperature, Operating, Minimum:-65 °C
Temperature, Operating, Range:-65 to +175 °C
- STMicroelectronics n Fairchild Semiconductor
- 10 Pieces TIP120 DARLINGTON TRANSISTOR, NPN, 60V, TO-220
- 10 Pieces 1N4001 DIODE, STANDARD, 1A, 50V, DO-41
User questions & answers
Question: | how do you wire the diodes to the TIP |
Answer: | Any time you are powering a device with a coil, such as a relay, solenoid, or motor, you need this guy, and don’t leave home without it. What happens is when you stop powering the coil, a reverse voltage, up to several hundred volts, spikes back. This only lasts a few microseconds, but it is enough to kill our transistor. So this diode (only allows current to pass one way) is normally facing the wrong direction and does nothing. But when that voltage spikes comes flowing the opposite direction, the diode allows it to flow back to the coil and not the transistor. Google - High-Power Control: Arduino + TIP120 Transistor |
Question: | description says 10x TIP120, is this price for a single tip120 or for 10 qty |
Answer: | This item is a set of 10 units of the TIP120 and 10 units of the snubber diodes.Kind Regards,Ben |
Product description
HUAREW High Quality BJT Assortment Kit.
The principle of BJT (bipolar junction transistor): The work of a bipolar
junction transistor involves both the flow of electrons and holes,
so it is called bipolar, so it is also called bipolar Carrier transistor This
mode of operation is different from unipolar transistors such
as field-effect transistors, which only involve the drift of a single
type of carrier. The boundary between two different dopant
aggregation regions is formed by a PN junction.
Packing quantity:
NPN:
BC337 x 25 Pcs
C1815 x 25 Pcs
S8050 x 25 Pcs
2N2222 x 25 Pcs
2N2907 x 25 Pcs
2N3904 x 25 Pcs
PNP:
A1015 x 25 Pcs
BC327 x 25 Pcs
S8550 x 25 Pcs
2N3906 x 25 Pcs
BJT uses: Bipolar transistors can amplify signals, and have better
power control, high-speed work and durability, so it is often used to
form amplifier circuits, or drive speakers, motors and other equipment,
and is widely used Applications in aerospace engineering,
medical equipment and robotics.
- HUAREW High Quality BJT Assortment Kit
- Product Name:Bipolar Junction Transistor
- Transistor Type: PNP & NPN
- Transistor Model: 10 Values:NPN-6 Type( BC337, C1815 , S8050 , 2N2222 , 2N2907 , 2N3904 ),PNP-4 Type( A1015 , BC327 , S8550 , 2N3906 )
- Package Quantity: 250 Pcs
Product description
Ultimate Transistor Assortment Kit, 686 pcs, 54 types, BJT, Mosfet, Germanium, Darlington, JFET incl. 30 pcs Sockets
BJTs:
2n2222 (NPN) 20 pcs
2n2907 (PNP) 20 pcs
S9013 (NPN) 20 pcs
S9012 (PNP) 20 pcs
C945 (NPN) 20 pcs
A733 (PNP) 20 pcs
SS8050 (NPN) 20 pcs
SS8550 (PNP) 20 pcs
BC337 (NPN) 20 pcs
BC327 (PNP) 20 pcs
BC547 (NPN) 20 pcs
BC557 (PNP) 20 pcs
2n3904 (NPN) 20 pcs
2n3906 (PNP) 20 pcs
2n5551 (NPN) 20 pcs
2n5401 (PNP) 20 pcs
S9014 (NPN) 20 pcs
S9015 (PNP) 20 pcs
C1815 (NPN) 20 pcs
A1015 (PNP) 20 pcs
S9018 (NPN) 20 pcs
2n5088 (NPN) 15 pcs
2n5087 (PNP) 15 pcs
2n5089 (NPN) 15 pcs
BC548(NPN) 20 pcs
BC558 (PNP) 20 pcs
BC550 (NPN) 20 pcs
BC560 (PNP) 20 pcs
2n4401 (NPN) 20 pcs
2n4403 (PNP) 20 pcs
Germanium:
Generic Type (NPN) 2 pcs
Generic Type (PNP) 2 pcs
JFETs:
J107 (N-Ch) 3 pcs
J113 (N-Ch) 3 pcs
J175 (P-Ch) 3 pcs
J201 (N-Ch) 3 pcs, (SMD on conversion PCB)
J202 (N-Ch) 3 pcs, (SMD on conversion PCB)
J211 (N-Ch) 3 pcs
PN4391 (N-Ch) 3 pcs, (SMD on conversion PCB)
PN4393 (N-Ch) 2 pcs
PF5102 (N-Ch) 3 pcs
J111 (N-Ch) 3 pcs
2SK117 (N-Ch) 2 pcs
Darlingtons:
MPSA13 (NPN) 15 pcs
MPSA14 (NPN) 5 pcs
MPSA64 (PNP) 5 pcs
MPSA65 (PNP) 5 pcs
2n5306 (NPN) 5 pcs
BC517 (NPN) 3 pcs
MOSFETs:
2SK2962 2 pcs
2n7000 15 pcs
BS170 10 pcs
LND150N3 3 pcs
ZVN4206A 3 pcs
Sockets: 30 pcs
- 686 pcs 54 values Transistor Assortment Box
- Includes BJT, Mosfets, JFET, Darlington, Germanium, NPN and PNP Transistors:
- BJT: 2n2222,2n2907,S9013,S9012,C945,A733,SS8050,SS8550,BC337,BC327,BC547,BC557,2n3904,2n3906,2n5551,2n5401,S9014,S9015,C1815,A1015,S9015,2n5088,2n5087,2n5089,BC548,BC558,BC550,BC560,2n4401,2n4403
- Germanium: NPN and PNP, JFET: J107,J113,J175,J201,J202,J211,PN4391,PN4393,PF5102,J111,2SK117, Darlington: MPSA13,MPSA14,MPSA64,2n5306,BC517, Mosfet: 2SK2962,2n7000,BS170,LND150N3,ZVN4206A
- Transistors come sorted accordingly in a labeled and handy box, includes 30 pcs Transistor Sockets
Product description
Couldn't find the right Transistors PNP NPN Assortment Kit for your electronic experiment?
Aukenien Power General Transistors PNP NPN Assortment Kit is your best choice!
SPECIFICATIONS:
Product Name: Power Transistors Assortment Kit
Transistor Type: PNP NPN
ADVANTAGES:
*Be made of top standard materials.
*High dielectric strength, Fast switching speed, Large power dissipation and Good current performance you need.
*Pretty popular in all kinds of veteran electronics people.
PACKAGE INCLUDING:
PNP TO-92 Transistor :
30pcs--A1015 PNP 60V 0.1A 0.4W 8MHZ
30pcs--BC327 PNP 50V 0.8A 0.625W 100MHZ
30pcs--S8550 PNP 40V 1.5A 1W 100MHZ
30pcs--2N3906 PNP 40V 0.2A 0.5W 250MHZ
NPN TO-92 Transistor:
30pcs--BC337 NPN 50V 0.8A 0.625W 100MHZ
30pcs--C1815 NPN 60V 0.15A 0.4W 8MHZ
30pcs--S8050 NPN 40V 1.5A 1W 100MHZ
30pcs--2N2222 NPN 60V 0.8A 0.5W 250MHZ
30pcs--2N2907 NPN 60V 0.6A 0.4W 200MHZ
30pcs--2N3904 NPN 60V 0.2A 0.625W 300MHZ
Total: 300 Pcs Transistors PNP NPN in a plastic box.
AUKENIEN 100% SATISFACTION GUARANTEE:
**If the product is defective or has other errors, please contact us via Amazon via email.
**If you are not satisfied with one of our products, we will provide you with a 100% money back guarantee.
**We strive to provide you with the best quality products and best service, your satisfaction is our top priority!
- 【Product Name】AUKENIEN Power General Transistors PNP NPN Assortment Kit RoHS Compliant.
- 【Product Features】Power General Transistor PNP NPN is a basic semiconductor device that control current, which can also be used as a non-contact switch.
- 【Superior Features】Providing high dielectric strength, fast switching speed, large power dissipation and good current performance you need.
- 【PNP & NPN Transistors】10 Values, Include: A1015 PNP, BC327 PNP, BC337NPN, C1815 NPN, S8050 NPN, S8550 PNP, 2N2222 NPN, 2N2907 NPN, 2N3904 NPN, 2N3906 PNP (Each model 30pcs) Total 300pcs in a plastic storage case.
- 【AUKENIEN 100% GUARANTEE】If you have any questions, please contact us immediately, we will help you at any time.
- Overview: TO92 Transistor BC 547B, Current: 0.1 A, Voltage: 50V
- Pin: CBE, Range: 200-450 Original Transistors Bipolar Junction Triode
- Original Transistors Bipolar Junction Triode for bc 547b
- For: Electronic DIY Project
Latest Reviews
View all
Borner Slicers
- Updated: 05.06.2023
- Read reviews

Accesses
- Updated: 29.07.2023
- Read reviews

Psychologies
- Updated: 31.05.2023
- Read reviews

Trucking Gps
- Updated: 08.07.2023
- Read reviews

Lip Stick Set
- Updated: 25.05.2023
- Read reviews