Discrete Semiconductors
Discrete semiconductors are individual active components — diodes, transistors, MOSFETs, IGBTs, thyristors, and rectifiers — that perform switching, rectification, amplification, and voltage regulation in virtually every power and signal circuit. Octatronics indexes tens of thousands of discrete devices from Vishay, Nexperia, onsemi, Infineon, ROHM, Toshiba, and Diodes Incorporated with parametric search, package filtering, and RFQ support.
Explore Discrete Semiconductors Subcategories
Browse Discrete Semiconductors Products
| PART NUMBER | MANUFACTURER | DESCRIPTION | STOCK | QTY / ACTION |
|---|---|---|---|---|
| MJE181STU | onsemi | 60V 3A NPN BJT Power Transistor, TO-126, 50MHz | 1,158 | |
| MJE181G | onsemi | NPN BJT Power Transistor, 60V, 3A, 50MHz, TO-225 | 90,000 | |
| MJE180G | onsemi | NPN BJT Power Transistor 40V 3A TO-225 | 40 | |
| MJE18008G | onsemi | 450V 8A NPN BJT Power Transistor TO-220 | 104,000 | |
| MJE18004G | onsemi | NPN BJT Power Transistor, 450V, 5A, 13MHz, TO-220 | 1 | |
| MJE172G | onsemi | PNP BJT 80V 3A TO-225 Power Transistor | 1,724 | |
| MJE171G | onsemi | PNP BJT Power Transistor, 60V, 3A, 50MHz, TO-225 | 3,005 | |
| MJE170G | onsemi | PNP BJT Transistor, 3A, 40V, 50MHz, TO-225 | 81,000 | |
| MJE15035G | onsemi | PNP BJT Transistor, 350V, 4A, 30MHz, TO-220 | 368 | |
| MJE15034G | onsemi | NPN BJT 350V 4A TO-220 Transistor | 2,147 |
Top Discrete Semiconductors Manufacturers
onsemi
onsemi Discrete Semiconductors products are available for part-number review, stock checks, and RFQ support.
28,226 productsROHM
ROHM Discrete Semiconductors products are available for part-number review, stock checks, and RFQ support.
3,980 productsTDK
TDK Discrete Semiconductors products are available for part-number review, stock checks, and RFQ support.
2,367 productsMolex
Molex Discrete Semiconductors products are available for part-number review, stock checks, and RFQ support.
1,034 productsVishay
Vishay Discrete Semiconductors products are available for part-number review, stock checks, and RFQ support.
9,347 products
Nexperia
Nexperia Discrete Semiconductors products are available for part-number review, stock checks, and RFQ support.
3,317 productsPanjit
Panjit Discrete Semiconductors products are available for part-number review, stock checks, and RFQ support.
687 productsMSKSemi Semiconductors
MSKSemi Semiconductors Discrete Semiconductors products are available for part-number review, stock checks, and RFQ support.
1 productsRenesas
Renesas Discrete Semiconductors products are available for part-number review, stock checks, and RFQ support.
74,605 productsSkyworks Solutions
Skyworks Solutions Discrete Semiconductors products are available for part-number review, stock checks, and RFQ support.
32 productsAbout Discrete Semiconductors
Unlike integrated circuits that combine multiple functions on one die, discrete semiconductors perform a single electrical function per device — making them fundamental building blocks that engineers combine to create custom power stages, protection circuits, signal switches, and amplifier topologies tailored to specific system requirements.
This category encompasses Diodes (Schottky, Zener, TVS, rectifier, and switching), Transistors (BJTs, MOSFETs, JFETs, IGBTs), and Thyristors (SCRs, TRIACs, DIACs). Discrete devices are selected based on voltage and current ratings, switching speed, on-resistance (RDS(on)), forward voltage drop, thermal characteristics, and package footprint.
On Octatronics, filter discrete semiconductors by device type, polarity, voltage/current class, package (SOT-23, TO-220, D2PAK, QFN), and automotive AEC-Q101 qualification. Compare parametric data across manufacturers and submit RFQs for prototyping or production volumes.
Frequently Asked Questions
Octatronics can help source a wide range of Discrete Semiconductors 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.
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PNP vs NPN vs P-Channel MOSFET: How to Choose the Right Transistor for Switching Circuits
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MOSFET vs BJT: Key Differences, Working Principles, and Engineering Selection Guide
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