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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
MM74HC138SJ Fairchild Semiconductor
IC DECODER/DEMUX...
3,870
In-stock
Inquiry
FST3126MTCX Fairchild Semiconductor
BUS DRIVER, CBT/F...
5,630
In-stock
Inquiry
FST3125QSCX Fairchild Semiconductor
IC BUS SWITCH 1 X ...
4,430
In-stock
Inquiry
FST3126QSC Fairchild Semiconductor
IC BUS SWITCH 1 X ...
7,590
In-stock
Inquiry
FST3126QSCX Fairchild Semiconductor
IC BUS SWITCH 1 X ...
1,700
In-stock
Inquiry
74F257APC Fairchild Semiconductor
IC MULTIPLEXER 4 ...
5,740
In-stock
Inquiry
74LCX138SJX Fairchild Semiconductor
IC DECODER/DEMUX...
3,780
In-stock
Inquiry
FST3125QSC Fairchild Semiconductor
IC BUS SWITCH 1 X ...
6,130
In-stock
Inquiry
FST3257QSCX Fairchild Semiconductor
IC MUX/DEMUX 4 X 2:...
3,200
In-stock
Inquiry
NC7WBD3306K8X Fairchild Semiconductor
IC BUS SWITCH 1 X ...
4,580
In-stock
Inquiry
FSTD3306L8X Fairchild Semiconductor
IC BUS SWITCH 1 X ...
5,310
In-stock
Inquiry
FST3384QSC Fairchild Semiconductor
IC BUS SWITCH 5 X ...
4,790
In-stock
Inquiry
74VHC153SJ Fairchild Semiconductor
IC MULTIPLEXER 2 ...
5,760
In-stock
Inquiry
74F399SCX Fairchild Semiconductor
IC MULTIPLEXER 4 ...
1,420
In-stock
Inquiry
DM74ALS137N Fairchild Semiconductor
IC DECODER/DEMUX...
1,160
In-stock
Inquiry
74AC251SJ Fairchild Semiconductor
IC MULTIPLEXER 1 ...
7,370
In-stock
Inquiry
CD4066BCN Fairchild Semiconductor
IC BILATERAL SW 1...
1,620
In-stock
Inquiry
DM74ALS138MX Fairchild Semiconductor
IC DECODER/DEMUX...
2,070
In-stock
Inquiry
DM74ALS257MX Fairchild Semiconductor
IC MULTIPLEXER 4 ...
4,470
In-stock
Inquiry
74ACT138SJ Fairchild Semiconductor
IC DECODER/DEMUX...
5,460
In-stock
Inquiry