Transistors
Transistors are three-terminal semiconductor devices used for signal amplification, switching, and voltage regulation. This category covers BJTs (NPN/PNP), MOSFETs (N-channel/P-channel), JFETs, IGBTs, and RF transistors from Infineon, onsemi, Nexperia, Vishay, STMicroelectronics, and Toshiba.
Explore Transistors Subcategories
Product Series & Base Models
Navigate by model series to compare ordering variants and technical specifications within the Transistors family.
PMV75UP
PMV75UP variants from Nexperia
PMV56XN
PMV56XN variants from Nexperia
PMV250EPEA
PMV250EPEA variants from Nexperia
PMF170XP
PMF170XP variants from Nexperia
PMDPB55XP
PMDPB55XP variants from Nexperia
PMBF170
PMBF170 variants from Nexperia
NX7002AKW
NX7002AKW variants from Nexperia
CSD25485F
CSD25485F variants from Texas Instruments
CSD25481F
CSD25481F variants from Texas Instruments
CSD17585F
CSD17585F variants from Texas Instruments
CSD17484F
CSD17484F variants from Texas Instruments
CSD17483F
CSD17483F variants from Texas Instruments
CSD13385F
CSD13385F variants from Texas Instruments
CSD13380F
CSD13380F variants from Texas Instruments
BSS84
BSS84 variants from Nexperia
BSS192
BSS192 variants from Nexperia
BSS123
BSS123 variants from Nexperia
BSP225
BSP225 variants from Nexperia
BSP220
BSP220 variants from Nexperia
BSH205G
BSH205G variants from Nexperia
BSH105
BSH105 variants from Nexperia
2N7002B
2N7002B variants from Nexperia
2N7002
2N7002 variants from Nexperia
Browse Transistors Products
| PART NUMBER | MANUFACTURER | DESCRIPTION | STOCK | QTY / ACTION |
|---|---|---|---|---|
| IRF4905STRLPBF | Infineon Technologies | MOSFET P-CH 55V 42A D2PAK [Active | RoHS Compliant]. | 29,543 | |
| 2N7002-7-F | Diodes Incorporated | MOSFET N-CH 60V 115MA SOT23-3 [SOT-23-3 | Active | RoHS Compliant]. | 4,140,000 | |
| BSS138LT1G | onsemi | N-CH MOSFET 50V 0.2A 3.5R SOT-23 T/R [Active | RoHS Compliant]. | 519,920 | |
| BC817-25Q-7-F | Diodes Incorporated | TRANS NPN 45V 0.5A SOT23-3 [SOT-23-3 | Active | RoHS3 Compliant]. | 14,830 | |
| IPTG007N06NM5ATMA1 | Infineon Technologies | MOSFET N-CH 60V 53A/454A HSOG-8 [HSOF-8 | Active | RoHS Compliant]. | 34,200 | |
| SIRA32DP-T1-RE3 | Vishay | Trans MOSFET N-CH 25V 185A 8-Pin PowerPAK SO EP T/R | 16,430 | |
| NTD5867NLT4G | onsemi | N-Ch Power MOSFET, 60V, 20A, 39mΩ, DPAK, Logic Level | 7,500 | |
| 55GN01CA-TB-E | onsemi | onsemi 55GN01CA-TB-E [CP | Active | RoHS Compliant]. | 5,878 |
Top Transistors Manufacturers
onsemi
onsemi Transistors products are available for part-number review, stock checks, and RFQ support.
28,226 productsROHM
ROHM Transistors products are available for part-number review, stock checks, and RFQ support.
3,980 productsTDK
TDK Transistors products are available for part-number review, stock checks, and RFQ support.
2,367 productsMolex
Molex Transistors products are available for part-number review, stock checks, and RFQ support.
1,034 productsVishay
Vishay Transistors products are available for part-number review, stock checks, and RFQ support.
9,347 products
Nexperia
Nexperia Transistors products are available for part-number review, stock checks, and RFQ support.
3,317 productsPanjit
Panjit Transistors products are available for part-number review, stock checks, and RFQ support.
687 productsMSKSemi Semiconductors
MSKSemi Semiconductors Transistors products are available for part-number review, stock checks, and RFQ support.
1 productsRenesas
Renesas Transistors products are available for part-number review, stock checks, and RFQ support.
74,605 productsSkyworks Solutions
Skyworks Solutions Transistors products are available for part-number review, stock checks, and RFQ support.
32 productsAbout Transistors
Transistors are three-terminal active semiconductor devices designed for signal amplification, electronic switching, and voltage regulation, acting as the fundamental building blocks of all modern analog and digital electronics. By utilizing a small input voltage or current to control a much larger output current flow, transistors serve as solid-state switches in power stages and high-fidelity amplifiers in signal chains.
This broad category encompasses Bipolar Junction Transistors (BJTs), Metal-Oxide-Semiconductor Field-Effect Transistors (MOSFETs), Insulated Gate Bipolar Transistors (IGBTs), Junction Field-Effect Transistors (JFETs), and RF power transistors. Selection criteria depend on operating current (A), breakdown voltage (V), switching speed, on-resistance or saturation voltage, thermal dissipation properties, and package footprints (SOT-23, TO-220, D2PAK, DFN).
Octatronics indexes tens of thousands of transistor part numbers from market pioneers including Infineon Technologies, onsemi, Nexperia, Vishay, STMicroelectronics, and Toshiba. Check specifications, verify stock, and submit bulk RFQs online.
Frequently Asked Questions
Octatronics can help source a wide range of Transistors from major manufacturers worldwide, including active production parts, long-lead-time items, and hard-to-find components.
Yes. You can submit a single part number or upload a BOM with multiple parts. Our team will check stock, date code, lead time, and pricing for each item.
Availability depends on the specific part number and supplier source. For important orders, buyers can request packaging photos, labels, date code information, and traceability documents.
Yes. Octatronics supports sourcing for active, end-of-life, obsolete, and hard-to-find components through our global supplier network.
Please provide the part number, manufacturer, quantity, required date code, target price, delivery country, and whether original packaging or COC is required.
Articles & Technology
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AD629 Alternatives and Equivalents: INA149 vs INA117 vs AD8479
Compare AD629 alternatives INA149, INA117 and AD8479 by common-mode range, CMRR, bandwidth, supply voltage, pinout and package.
PNP vs NPN vs P-Channel MOSFET: How to Choose the Right Transistor for Switching Circuits
PNP, NPN, and MOSFET transistors are widely used for electronic switching and control applications, but each device has different operating principles and performance characteristics. This guide explains the key differences between PNP vs NPN vs MOSFET, including switching behavior, efficiency, applications, and how engineers select the right transistor for different circuit designs.
MOSFET vs BJT: Key Differences, Working Principles, and Engineering Selection Guide
MOSFET and BJT are two fundamental transistor technologies used in electronic circuits. This guide explains the key differences between MOSFET vs BJT, including control methods, switching speed, efficiency, thermal behavior, and real-world applications. Learn how engineers select the right transistor for different circuit designs.
PNP Bipolar Junction Transistor (BJT): Definition, Working Principle, and Core Electronics Concepts
The PNP bipolar junction transistor is a current-controlled semiconductor device used in switching and amplification. This guide explains its working principle, structure, biasing behavior, and differences compared to NPN transistors in a clear, structured format for electronics learners and engineers.
Field Emission Transistor Explained: Vacuum FETs, Field Emission Devices, and How They Differ from FETs
A field emission transistor is a device concept that uses strong electric fields to extract electrons from an emitter, often through quantum tunneling, and then controls or collects those electrons using nearby electrodes. Unlike a conventional field effect transistor, which controls current through a semiconductor channel, many field emission transistor concepts are related to vacuum electronics, vacuum field emission transistors, nanoscale vacuum channel transistors, and advanced field emission devices.
What Is a Field Effect Transistor? FET Types, Working Principle, Applications, and Selection Guide
A Field Effect Transistor, commonly called a FET, is a voltage-controlled semiconductor device that uses an electric field to control current flow between two terminals called the source and drain. Unlike bipolar junction transistors, which require input current at the base, FETs are controlled mainly by voltage at the gate terminal. This gives FETs high input impedance, low control power, and strong advantages in switching, amplification, power management, RF circuits, sensor interfaces, and modern integrated circuits.