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Connectors, Interconnects

Connectors Interconnects covers the parts that join one circuit to another, from the AC inlet on a power supply chassis down to the tiny FFC connector holding a display ribbon in a handheld device. The category is broad. It includes AC power connectors, backplane and card edge types, banana and tip jacks for test benches, barrel power jacks, coaxial RF connectors, D-sub shells, circular connectors for industrial and mil-spec gear, fiber optic termini, board-to-board mezzanine parts, and between-series adapters for mating dissimilar interfaces. Nearly every assembled product contains several of these, and they show up in telecom racks, medical equipment, automotive harnesses, instrumentation, and consumer electronics alike. Buyers sourcing connectors tend to check a few things before anything else: mating cycle rating, contact plating (gold flash versus 30 microinch gold changes both price and life), current and voltage ratings per contact, wire gauge range, and the exact keying or polarization code, since one wrong suffix can mean a housing that looks right but will not mate. Pitch and footprint matter for board-level parts, and RF types add impedance and frequency range to the checklist. The real trade-off in this category is usually lead time against price. Franchised stock on popular TE, Molex, or Amphenol series can carry 12 to 20 week factory lead times when demand spikes, so many buyers turn to independent channels for shortages. That is where counterfeit risk creeps in, especially on high-value circular and mil-spec connectors, and it is worth asking for traceability and photos of labels and date codes before committing. Packaging preference matters too: cut tape versus full reel, or bagged versus tray, affects both price and how the parts run through your assembly process. You can check current stock and get a quote on any part number in this category at icxing.com.

Frequently Asked Questions

How do I make sure the connectors I buy from an independent distributor are not counterfeit?

Ask for full traceability paperwork, lot and date codes, and clear photos of the actual parts and labels before payment. Reputable independent distributors will also support third-party testing such as XRF plating analysis and decapsulation on higher-value parts. If a price is far below market on a shortage part, treat that as a warning sign.

The part number I need shows a long factory lead time. What are my options?

First check whether a different suffix of the same series (plating, keying, or packaging variant) is in stock, since those are often interchangeable for your build. Independent distributors frequently hold franchised excess or factory overruns on constrained series, so sending your full BOM for a shortage quote is usually faster than waiting on the standard lead time.

Does gold plating thickness actually matter when I select a connector?

Yes. Gold flash is fine for a few dozen mating cycles in a controlled environment, but connectors rated for hundreds of cycles typically specify 15 to 30 microinches of gold over nickel. Thinner plating saves cost but wears through to the base metal, which raises contact resistance and causes intermittent failures over time, especially in humid or high-vibration environments.

Image Part Manufacturer Description Stock Action
51939-309LF Amphenol Communications Solutions
CONN HDR BLADE PW...
4,660
In-stock
Inquiry
10106262-0210001LF Amphenol Communications Solutions
CONN BLADE PWR
1,410
In-stock
Inquiry
51736-001LF Amphenol Communications Solutions
CONN HDR BLADE PW...
3,210
In-stock
Inquiry
10106131-6000001LF Amphenol Communications Solutions
PWRBLADE+ V/T PF R...
3,840
In-stock
Inquiry
10106128-8006001LF Amphenol Communications Solutions
CONN BLADE PWR
1,550
In-stock
Inquiry
51730-215LF Amphenol Communications Solutions
CONN HEADER BLAD...
5,650
In-stock
Inquiry
51915-159LF Amphenol Communications Solutions
CONN RCPT BLADE P...
6,480
In-stock
Inquiry
51939-362LF Amphenol Communications Solutions
CONN HDR BLADE PW...
2,850
In-stock
Inquiry
51721-10001606AALF Amphenol Communications Solutions
CONN HDR BLADE PW...
4,860
In-stock
Inquiry
51940-238LF Amphenol Communications Solutions
CONN RCPT BLADE P...
7,780
In-stock
Inquiry
10135261-10JLF Amphenol Communications Solutions
AIRMAX VS2 RAR 3X6...
2,310
In-stock
Inquiry
51939-186LF Amphenol Communications Solutions
CONN HDR BLADE PW...
1,230
In-stock
Inquiry
51760-10301203AALF Amphenol Communications Solutions
CONN RCPT BLADE P...
5,220
In-stock
Inquiry
84817-101028LF Amphenol Communications Solutions
CONN HEADER HIGH...
6,480
In-stock
Inquiry
51700-10301203AALF Amphenol Communications Solutions
CONN HEADER BLAD...
2,110
In-stock
Inquiry
51701-10001204CCLF Amphenol Communications Solutions
CONN HEADER BLAD...
4,140
In-stock
Inquiry
51773-015LF Amphenol Communications Solutions
CONN RCPT BLADE P...
1,920
In-stock
Inquiry
51939-691LF Amphenol Communications Solutions
CONN HEADER 76POS...
2,380
In-stock
Inquiry
10106262-0013101LF Amphenol Communications Solutions
CONN HEADER 52POS...
5,170
In-stock
Inquiry
51725-10000808A0LF Amphenol Communications Solutions
CONN HDR BLADE PW...
3,720
In-stock
Inquiry