D-Sub Connector Sourcing from China for CIS Buyers

D-Sub Connector Sourcing from China: 9 to 50 Way, Solder, IDC and PCB for Russian and CIS Buyers

D-Sub DE-9, DA-15, DB-25, DC-37 and DD-50 connectors are still in active production through Amphenol FCI, TE Connectivity AMP and HARTING — our catalog lists SKUs such as Amphenol FCI D09P33E6GX00LF, D25S91C4GV00LF, D37S13A4GL00LF and TE AMP 4-103327-0-09. A D-Sub BOM line is rarely one part number: it is housing plus contact plus hood plus screw lock, so consolidating those separate lines into one DDP shipment to Russia or the CIS, mixed brand, in batches of 50 to 200 per line, is what icsourcedirect.com — an independent China connector distributor and procurement agent — actually does.

By the icsourcedirect.com sourcing desk. Data current as of September 2026.

Why D-Sub still matters for industrial buyers in 2026

The D-Sub family is the original computer-terminal connector family and is still the cheapest, most universally keyed I/O interface for low-speed serial data, instrumentation and control wiring. A typical Russian integrator retrofitting a 2010-era CNC controller, replacing a 1990sera PLC front panel, or rebuilding the test fixture for a serial-bus production line will reach for D-Sub before anything else — the alternative would be a much more expensive circular M12 or M8 family with a custom keying insert, or a USB-to-serial adapter that does not survive the panel and vibration room.

The Russian-language question that lands D-Sub buyers on a sourcing desk is the simplest one in our prompt bank: «D-Sub разъемы купить, 9 и 25 pin, оптом из Китая» — D-Sub connectors, 9 and 25 pin, wholesale from China. Buyers are usually sitting on a small lot of mixed-position connectors drawn from older equipment and want one shipment with one commercial invoice, one HS code line and one delivery window, not five separate orders from five different sources.

What icsourcedirect.com handles on a routine basis:

Standard-density shells: DE-9 (often mislabelled DB-9), DA-15, DB-25, DC-37, DD-50
High-density HD-15 (the video-style 15-pin shell) and HD-26, HD-44, HD-62
Mixed pin and socket gender within one BOM line family
Solder-cup, IDC ribbon-cable, crimp, and PCB through-hole termination styles
Hoods, backshells, jack screws and mounting hardware as separate BOM lines
Cross-compatible footprints from TE Connectivity AMP, Amphenol FCI (formerly FCI), HARTING, NorComp, Conec, Assmann WSW

What a D-Sub BOM line actually contains

A buyer who quotes "DB-25 male" is asking for one of several different part numbers. The catalog entry alone tells you the shell size and the gender, but not the termination, not the plating, and not the mounting hardware. The four physical parts that travel with every D-Sub plug are:

Housing — the metal shell with the trapezoidal key, the plastic insulator and the contact cavities. The shell size (DE / DA / DB / DC / DD) and the gender (pin male or socket female) are fixed here.
Contacts — separate from the housing on a crimp-termination plug. They are usually ordered per 100 or per reel, sized for the wire gauge you are using (commonly 22–30 AWG for signal lines), and plated tin, gold flash or selective gold depending on the mating-cycle target.
Hood or backshell — the plastic or metal cover that goes over the cable end of a solder-cup or IDC plug, gives strain relief and, where required, a cable clamp.
Screw-lock hardware — the metric or unified-thread jack screws, hex nuts and locking washers. HARTING, FCI and NorComp sell these as separate line items; TE often bundles them with the hood.

If a customer sends us a BOM with "D-Sub DB-25 male × 60", we always reply with three or four line items: the plug housing itself, the contacts by reel quantity, the hood and the screws. The same is true for cable-mount DB-25 female on the other side of the harness. Two D-Sub plugs plus two hoods plus a handful of screws is a five-line kit.

For board-mounted applications the breakdown is different but equally split:

Right-angle PCB header (for example TE 4-103327-0-09 in DE-9 male) — comes as a single part number, already populated with contacts.
Vertical PCB header — same form factor, different mounting orientation.
SMT board-mount variants — less common in industrial builds, more common on consumer equipment.
Board-mount screw-lock hardware — usually a separate line item.

How icsourcedirect.com consolidates a D-Sub BOM

The most common D-Sub BOM a Russian or CIS buyer ships our way looks like this: 6 to 12 lines, mixed brand, mixed position and gender, mixed termination style, 50 to 200 pieces per line, often with hoods and screw locks as separate lines. This is the BOM kitting use case the site was designed around.

Our standard workflow:

Send the BOM. A spreadsheet, PDF or even a hand-typed list is fine. Per line we need MPN or shell size, gender, termination style, plating (if specified) and quantity. If the MPN is unknown, the shell size and termination style alone are enough to start.
Line-by-line matching. We pull from the 174,000-SKU catalog, then map every line to at least one catalog SKU. Where the original MPN is from a brand not in stock, we map to a compatible second source at the same shell size, same gender, same plating. Compatible here means footprint, termination and current rating match — not a claim of equivalence — and we mark every compatible line as such so the customer's engineering team can re-verify against the manufacturer datasheet before assembly.
Line-by-line RFQ. We send one RFQ per line with the indicative price range, MOQ, lead time and stock condition on the spot. Pricing is indicative and reconfirmed per line on the quote — we do not publish unit prices or stock counts on the website.
Confirmation and procurement. The customer confirms the line list. We procure each line, line by line, from the catalog.
Inspection and consolidation in Shenzhen. Parts are inspected on receipt — visual, marking, plating, dimensions — then consolidated into one shipment at the Shenzhen desk.
Consolidated air freight to Russia or the CIS. DDP, weekly lane, 7–15 days end-to-end under the published air-freight schedule. Customs clearance and import duties are at our end on a DDP quotation; the customer's obligation is to provide the end-user and end-use information we need for screening.
Single commercial invoice, single packing list, single HS code line (8536.69 for connector families in the EAEU HS nomenclature) unless the customer asks us to split.

Where we sit in the chain: we are an independent China connector distributor and procurement agent, not an authorized distributor of TE Connectivity, Amphenol, HARTING, NorComp or any other brand we sell. That means three honest limitations the customer needs to know up front:

We do not issue the OEM warranty. For new design work, design responsibility stays with the customer's engineering team; we provide parts.
We do not hold ISO 13485, EAC certification, ATEX, UL or any other compliance certificate on connectors. EAC and TR CU documentation must be requested from the original manufacturer or an authorized local certification body; we will tell the customer what to ask for, but we do not issue it.
We do not sell MIL-spec D-Sub (M24308, M83513, M28731) as primary parts. For those, customers go to franchised distributors.

For a D-Sub BOM that is industrial-grade (commercial temperature range, gold flash or tin plating, brass shell, 30 microinch gold option), our sourcing depth is straightforward — these are exactly the lines our catalog is built around.

What to send for a D-Sub BOM RFQ

The fastest path to a clean D-Sub quotation, based on the BOM submissions we have processed:

A spreadsheet (XLSX, CSV or Google Sheets) with one row per line: MPN or shell size, gender, termination, plating if specified, quantity.
A column for "OK to second-source" or "exact MPN only" per line. Most lines can be safely second-sourced because D-Sub footprints are standardized across brands; some cannot, especially where the hood has a brand-specific screw pattern.
A note on the inspection standard. Visual only is the default; plating-thickness check or mating-cycle pre-test are available on request at additional cost.
A delivery window and a destination airport or city. Moscow Sheremetyevo, Domodedovo, Vnukovo, Saint Petersburg Pulkovo, Minsk, Almaty, Astana and Yerevan are all on the published lane.

For a buyer who is just starting, the easier starting point is to send a single line — for example «D09P33E6GX00LF or equivalent DE-9 male solder cup × 80 pcs» — and let us map that line to current catalog inventory and return an indicative unit price range. If that line goes through cleanly, the rest of the BOM usually does too.

Why the second-source question on D-Sub is not as simple as it looks

The shape of the D-Sub shell is standardized across manufacturers — DE-9, DA-15, DB-25, DC-37, DD-50 all use the same trapezoidal footprint with the same screw pitch, and the contacts are interchangeable between brands at the standard-density pitch (2.74 mm). On paper, an Amphenol FCI D09P33E6GX00LF and a TE AMP 4-103327-0-09 fit the same DE-9 footprint.

In practice, three details move a D-Sub second-source decision from "papermatch" to "verified":

Plating. Tin, gold flash, selective gold (gold on the mating face, tin on the termination), 10 microinch gold, 30 microinch gold. Mating-cycle ratings shift with plating — a tin-plated D-Sub is rated for fewer mating cycles than a gold-flash variant. Stock brackets with one plating specification cannot be quietly swapped for the other.
Hood / backshell geometry. HARTING hoods and NorComp hoods are not always cross-compatible at the screw pattern, even when the shell size matches. A HARTING hood for a 25-position D-Sub may not seat correctly on a NorComp plug.
Current rating vs the wire gauge. Standard-density D-Sub signal contacts are rated for 5 A per contact at 25 °C in the dominant datasheets, but the rating is de-rated with wire gauge and ambient temperature. Crimp contacts for 22–24 AWG typically carry 3 A continuous; for 26–30 AWG the rating drops further. A line drawn for 5 A on 22 AWG cannot be silently swapped to a contact rated for 3 A on 28 AWG.

For a safety-critical loop — a PLC emergency stop, a brake drive, a medical monitor's patient-side wiring — a D-Sub footprint match is not a substitute for a wiring-loop review. The conservative move in those cases is to keep the original brand and the original plating. This is the one fail-safe scenario where a footprint-only cross-reference should be declined: any D-Sub on a safety loop is a brand-specific BOM.

What we will not do on a D-Sub order

Three honest limits, repeated because they matter to the customer's engineering team and their procurement compliance officer:

We do not certify the connector for any safety-critical loop. The customer certifies the loop.
We do not claim that a second-source third-party connector is equivalent to a first-party OEM connector. Where the datasheet permits, we say so; where it does not, we flag it.
We do not publish unit prices, lead times, MOQs or stock counts on the website. Everything is line-by-line on the quote. This is not a marketing posture — it is a sourcing reality. Catalog D-Sub SKUs in our catalog are listed with confirmed per-line stock on the quote, and a unit price is indicative only.

Closing

For a Russian or CIS integrator or MRO team rebuilding a mixed-position D-Sub BOM — DE-9 for serial comms, DA-15 for instrumentation, DB-25 for control wiring, DC-37 for I/O — the fastest path is a spreadsheet to the inquiry desk, with each line carrying the MPN or shell size, gender, termination, plating and quantity. A typical D-Sub BOM of 6 to 12 lines consolidates into one DDP air-freight shipment to Russia or the CIS on the published 7–15 day lane.

Send a D-Sub BOM for quoting through /inquiry or /baojia. The first response maps every line to a catalog SKU and returns a per-line indicative price range, MOQ and lead time before any commitment.

Data Notes

Catalog evidence: D-Sub SKUs D09P33E6GX00LF, D25S91C4GV00LF, D37S13A4GL00LF (Amphenol FCI), 89882-340LF, 76314-111LF (Amphenol FCI BergCon) and 4-103327-0-09 (TE Connectivity AMP) were verified through the icsourcedirect.com catalog on 2026-09-17.
Plating, mating-cycle ratings and current-rating figures reflect manufacturer datasheet values that are consistent across Amphenol FCI, TE Connectivity AMP and HARTING D-Sub lines. For any specific second-source decision, verify against the original manufacturer datasheet.
Lead time, MOQ and price figures are indicative and are reconfirmed per line on the quote.
DDP, customs clearance and end-to-end delivery time are quotation conditions, not service guarantees. Lead times follow the published air-freight schedule and depend on destination airport and customs clearance at the destination.
We screen end users and end uses, classify before quoting, and decline transactions that cannot be screened.

FAQ

How do I identify a D-Sub connector from a drawing or a sample on my desk when the marking is unreadable?

Measure the shell trapezoid across the long axis — 30.8 mm for DE-9, 39.1 mm for DA-15, 53.0 mm for DB-25, 69.3 mm for DC-37 and 66.9 mm for DD-50. Count the contact cavities: DE-9 has 9, DA-15 has 15, DB-25 has 25, DC-37 has 37. A 15-pin shell in the smaller video-style footprint is HD-15 (sometimes labelled DE-15), not DA-15. Bring the shell size, gender (pin male vs socket female) and termination style (solder cup, IDC ribbon, crimp or PCB) to the inquiry desk; we can map from those three data points.

Can I combine DE-9, DB-25, DC-37 and the matching hoods and screws into one shipment to Russia?

Yes. Standard practice is to send the consolidated BOM to /inquiry or /baojia with one row per line. Each line carries the MPN or shell size, gender, termination and quantity. Hoods and screw-lock hardware are separate rows on the BOM and consolidate into the same shipment. Lead time and commercial invoice are line-by-line, but freight consolidates to one DDP shipment on the published 7–15 day lane to Russia and the CIS.

Is the D-Sub going obsolete? Should I move my new design to something else?

D-Sub is in active production at TE Connectivity, Amphenol FCI, HARTING, NorComp, Assmann WSW and 3M. It is not obsolete. For new industrial designs at signal-level data rates and modest current, D-Sub remains the cheapest keyed I/O interface on the market. For new high-speed serial links (USB 3.x, HDMI, Ethernet at gigabit rates), move to the appropriate modern interface. For most PLC, CNC, test fixture and serial-instrumentation designs, D-Sub is still the right connector.

What is the difference between standard-density DB-25 and high-density HD-15?

DB-25 is a 25-position shell in the standard-density pitch (2.74 mm between contacts), used for RS-232, RS-422, parallel printer ports and legacy SCSI. HD-15 is a 15-position shell in the high-density pitch (2.29 mm), used for analog video (VGA), some Ethernet AUI interfaces and game-port connectors. The two are not cross-compatible — the shells have different sizes and the contact pitch is different. Sending a HD-15 BOM to a DB-25 line is a common error to avoid.

What plating should I specify for an industrial cabinet at 25 °C ambient with 50 mating cycles per year?

For a low-mating-cycle industrial application (under 100 cycles per year), tin plating on the contacts is acceptable and is the cheapest option. For moderate-cycle applications (100–500 cycles per year), gold flash (typically 10 microinch gold over nickel) is the standard industrial choice. For high-cycle or low-voltage-logic signals, 30 microinch gold is appropriate. Specify plating in the BOM line, not just on the connector — a tin-spec BOM line cannot be sourced as gold without an additional feature.

How do I send a D-Sub BOM for the fastest quotation?

A spreadsheet with one row per line: MPN or shell size, gender, termination style, plating (if specified), quantity, and a column marking which lines accept a second-source. Send to /inquiry or paste into /baojia. The first response maps every line to a catalog SKU and returns an indicative price range, MOQ and lead time per line, before any commitment is made.