Connectors, Interconnects

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
19K203-3X1L5 Rosenberger
SMP RIGHT ANGLE J...
4,630
In-stock
Inquiry
53QK40A-500N5 Rosenberger
N TYPE PANEL JACK
5,480
In-stock
Inquiry
59K101-001L5 Rosenberger
SMB STRAIGHT JAC...
5,490
In-stock
Inquiry
32S207-306N5 Rosenberger
SMA RIGHT ANGLE P...
3,030
In-stock
Inquiry
32S207-307N5 Rosenberger
SMA RIGHT ANGLE P...
4,660
In-stock
Inquiry
71K103-400A5 Rosenberger
BNC 75 OHM STRAIGH...
6,230
In-stock
Inquiry
56K201-400A5 Rosenberger
TNC RIGHT ANGLE J...
2,170
In-stock
Inquiry
18K203-270L5 Rosenberger
MINI SMP RIGHT AN...
5,150
In-stock
Inquiry
39K102-101L5 Rosenberger
SMC STRAIGHT JAC...
4,280
In-stock
Inquiry
39S501-271L5 Rosenberger
SMC BULKHEAD PLU...
4,920
In-stock
Inquiry
28K101-40ML5 Rosenberger
QMA STRAIGHT JAC...
3,790
In-stock
Inquiry
17S14A-40PL5 Rosenberger
LONGWIPE SMP STR...
3,200
In-stock
Inquiry
51K107-803N5 Rosenberger
BNC STRAIGHT JAC...
3,630
In-stock
Inquiry
88K203-302L5 Rosenberger
1.6/5.6 GEN III RIGH...
7,570
In-stock
Inquiry
39K202-301L5 Rosenberger
SMC RIGHT ANGLE J...
4,960
In-stock
Inquiry
53K403-200N5 Rosenberger
N TYPE PANEL JACK
1,100
In-stock
Inquiry
88K505-1V2L5 Rosenberger
1.6/5.6 GEN III BULK...
3,610
In-stock
Inquiry
53K501-115N5 Rosenberger
N TYPE BULKHEAD J...
6,770
In-stock
Inquiry
53K501-117N5 Rosenberger
N TYPE BULKHEAD J...
1,030
In-stock
Inquiry
53QK501-272N5 Rosenberger
N TYPE BULKHEAD J...
4,820
In-stock
Inquiry