Discrete & Power Devices
Discretes are high-volume, price-sensitive and frequently counterfeited — a combination that rewards a disciplined supplier. We stock 17,000+ discrete part numbers: power MOSFETs, IGBTs, rectifier and Schottky diodes, TVS/ESD protection, and small-signal transistors.
Infineon/IR legacy, Alpha & Omega, onsemi/Fairchild heritage, Vishay and ST lines are covered from SOT-23 up to TO-247 and module packages, with date codes stated on every quote.
Device coverage
N/P-channel MOSFETs from 20 V to 900 V, IGBTs and drivers, fast-recovery and Schottky rectifiers, TVS arrays and ESD protection, Zener and small-signal diodes, BJTs and JFETs.
Legacy International Rectifier part numbers (IRF/IRFP series, now Infineon) are stocked in depth — including PBF lead-free transitions and the exact suffix your BOM calls for.
| Device class | Typical packages | Main brands |
|---|---|---|
| Power MOSFET | TO-220, TO-247, DFN, SO-8 | Infineon, AOS, onsemi |
| IGBT & drivers | TO-247, modules | Infineon, ST, onsemi |
| Rectifiers / Schottky | DO-series, SMC, TO-252 | Vishay, ST, onsemi |
| TVS / ESD protection | SOD, SOT, arrays | ST, Nexperia, Littelfuse |
Anti-counterfeit discipline on discretes
Power discretes top the counterfeit statistics. We buy from audited sources, photograph top markings and labels per lot, and support X-ray plus electrical verification on request.
For automotive and industrial programs we provide lot traceability and can segregate single-date-code shipments.
Popular discrete parts in stock
| Part Number | Manufacturer | Package | Notes |
|---|---|---|---|
| AO3421 | Alpha & Omega Semiconductor | DFN / SO-8 (typ.) | P-channel logic-level MOSFET |
| AO3434 | Alpha & Omega Semiconductor | DFN / SO-8 (typ.) | N-channel low-Rds(on) |
| AO4442 | Alpha & Omega Semiconductor | DFN / SO-8 (typ.) | N-channel power switch |
| IRFP044NPBF | Infineon Technologies | TO-247 (typ.) | Legacy IR power MOSFET |
| IRFP064VPBF | Infineon Technologies | TO-247 (typ.) | High-current N-channel |
| AONP36336 | Alpha & Omega Semiconductor | DFN / SO-8 (typ.) | Dual N-channel power stage |
Can't find your part number? Search the full catalog — we source beyond listed stock.
Frequently Asked Questions
Do you carry legacy IR (International Rectifier) parts?
Yes — IRF/IRFP heritage lines under Infineon are stocked with both PBF and legacy suffixes.
Can you supply single date codes?
Yes, single-date-code lots can be segregated for production orders.
What packages do you stock?
From SOT-23 and DFN to TO-220, TO-247 and power modules.
How do you fight counterfeits on discretes?
Audited sourcing, per-lot marking photos, and optional X-ray/electrical test.
What is the MOQ?
One piece for samples; production quantities in full reels or tubes.
Do you ship worldwide?
Yes — DHL/FedEx/UPS from Hong Kong, 1–3 days dispatch on stock.
Start an RFQ or upload your BOM — our Hong Kong desk replies within 2 working hours.