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Integrated Circuits (ICs)

Integrated circuits are the building blocks of nearly every electronic product, from power adapters and industrial controllers to medical devices and automotive systems. This category covers a wide range of sub-types, including audio special purpose ICs, clock and timing devices, data acquisition converters, embedded processors and controllers, interface transceivers, linear amplifiers, logic gates, memory chips, power management PMICs, and other specialized functions. Most designs rely on a mix of these, and sourcing them often means juggling multiple manufacturers, package styles, and lifecycle statuses at once. When buyers come to us looking for ICs, the conversation usually starts with the part number and quickly moves to date codes, packaging preferences, and whether the part is still in active production. Tape-and-reel versus tray matters more than people outside the industry might expect, especially for automated assembly lines. Lead time is another big factor. A part that shows a 26-week factory lead time might be available from franchised or independent channels in a fraction of that, but the trade-off is often price and the need for tighter quality checks. Counterfeit risk is real in this market, particularly for older or allocated parts, so traceability and incoming inspection are things experienced procurement teams ask about before placing an order. We also see a lot of requests where an engineer needs a specific grade, like automotive AEC-Q100 qualified or industrial temperature range, and the commercial-grade version simply will not work for their application. Package type, pin count, and RoHS compliance round out the usual checklist. If you are working through a BOM and want to see what we have on the shelf or what we can source, take a look at current stock on icxing.com or send us your list for a quote. We will get back to you with actual availability and pricing, not a generic auto-reply.

Frequently Asked Questions

How do I know the ICs I am buying are not counterfeit?

This is one of the most common concerns, especially for obsolete or allocated parts. Reputable distributors perform visual inspection, X-ray analysis, and sometimes decapsulation or electrical testing on high-risk lots. Ask your supplier about their quality control process and whether they can provide traceability documentation back to the original manufacturer.

What is the difference between commercial, industrial, and automotive grade ICs?

The main differences are operating temperature range and qualification standards. Commercial grade typically handles 0 to 70 degrees Celsius, industrial extends to minus 40 to 85 or higher, and automotive parts meet AEC-Q100 standards with even tighter reliability requirements. Using a commercial-grade part in an industrial or automotive design can lead to field failures, so always match the grade to your application.

The factory lead time on my part is 20 weeks. Can I get it faster?

Often yes, through franchised distributors holding stock or through independent channels that specialize in hard-to-find components. The trade-off is usually a higher unit price and the need for additional incoming inspection if the source is not franchised. Send us the part number and quantity and we can check what is actually available right now.

Image Part Manufacturer Description Stock Action
MM74HC139MTCX Fairchild Semiconductor
DECODER/DRIVER, H...
2,370
In-stock
Inquiry
MM74HC148N Fairchild Semiconductor
ENCODER, HC/UH SE...
3,720
In-stock
Inquiry
FST16232MTD Fairchild Semiconductor
MUX AND DEMUX/DEC...
3,730
In-stock
Inquiry
100363QC Fairchild Semiconductor
MULTIPLEXER, 100K ...
2,480
In-stock
Inquiry
100371QCX Fairchild Semiconductor
MULTIPLEXER, 100K ...
2,900
In-stock
Inquiry
FSTUD32450G Fairchild Semiconductor
BUS DRIVER
2,690
In-stock
Inquiry
100364QC Fairchild Semiconductor
MULTIPLEXER, 100K ...
3,420
In-stock
Inquiry
74LS151PC Fairchild Semiconductor
MULTIPLEXER, 1-FU...
1,250
In-stock
Inquiry
FSTD3125MTCX Fairchild Semiconductor
IC BUS SWITCH 1 X ...
3,520
In-stock
Inquiry
MM74HCT138M Fairchild Semiconductor
DECODER/DRIVER, H...
6,310
In-stock
Inquiry
74F352PC Fairchild Semiconductor
IC MULTIPLEXER 2 ...
4,010
In-stock
Inquiry
74F253PC Fairchild Semiconductor
IC MULTIPLEXER 2 ...
6,560
In-stock
Inquiry
CD4066BCMX Fairchild Semiconductor
IC BILATERAL SW 1...
5,460
In-stock
Inquiry
74AC151MTC Fairchild Semiconductor
IC MULTIPLEXER 1 ...
4,430
In-stock
Inquiry
74AC151SC Fairchild Semiconductor
IC MULTIPLEXER 1 ...
7,090
In-stock
Inquiry
MM74HC154WM Fairchild Semiconductor
IC DECODER 1 X 4:16 ...
6,230
In-stock
Inquiry
74AC251MTC Fairchild Semiconductor
IC MULTIPLEXER 1 ...
7,360
In-stock
Inquiry
74ACT258PC Fairchild Semiconductor
IC MULTIPLEXER 4 ...
2,810
In-stock
Inquiry
74F399PC Fairchild Semiconductor
IC MULTIPLEXER 4 ...
1,540
In-stock
Inquiry
74ACT157SCX Fairchild Semiconductor
IC MULTIPLEXER 4 ...
5,720
In-stock
Inquiry