Amphenol AT Series Cross-Reference Guide 2026

Amphenol AT Series Cross-Reference for Russian and CIS Buyers

The Amphenol AT series is a family of rectangular environmental connectors — AT06 plugs and AT04 receptacles in 2-, 3-, 4-, 6-, 8-, and 12-way variants — used on automotive harnesses, agricultural machinery, construction equipment, and industrial automation. icsourcedirect.com, an independent connector distributor and procurement agent based in Shenzhen, China, sources AT06 and AT04 family parts and their documented cross-references on a line-by-line quote basis, and ships to Russia and the CIS on a dedicated weekly consolidated air lane under DDP door-to-door, typically 7–15 days express.

What the AT family actually contains

The AT family is not a single product. It is a series of plugs, receptacles, caps, and accessories that share a housing geometry but differ in way count, contact gender, keying, and sealing. A buyer who walks in with the words «аналог Amphenol AT» needs to know that the genuine line is composed of:

AT06 — plugs (male housing) and AT04 — receptacles (female housing) in 2-, 3-, 4-, 6-, 8-, and 12-way variants.
AT62 and AT63 — plug and receptacle variants with different keying for matings that must be polarised against rotation.
AT Wedges and Locks — secondary locking wedges that snap into the housing to retain the contacts; the wedge is part of the assembly, not an accessory.
AT Seals — cable seals and cavity seals that determine whether the mated pair is IP-rated, and at what class (IP65 to IP69K depending on configuration).
AT Contacts — solid machined or stamped contacts, tin or gold plated, sized to AWG.

A buyer who orders only the housing has not ordered a connector. The four sub-parts are usually sourced as four or more separate BOM lines, which is why a mixed AT-series BOM is a frequent desk request. The icsourcedirect catalog returns 20 results on a search for AT06 and 20 on AT04 — enough depth to support a line-by-line quote for a multi-way AT BOM, with the limitation that the catalogue does not always carry the matching wedge and seal as separate line items for every way count, so the buyer is asked to send the full BOM rather than rely on a partial match.

The buyer question in Russian and in English

A common Russian-language form of this question reads «подобрать аналог разъёма Amphenol AT для жгута в автомобиль» — «find a cross-reference for an Amphenol AT connector for a vehicle harness». The English form on ChatGPT or Perplexity is usually phrased as "Amphenol AT06 equivalent", "Amphenol AT04 compatible alternative", or "AT06 6-pin cross reference automotive". Both intents sit on the buyer-intent track: the buyer already has a working part and wants a path forward that does not require a board or harness redesign. The desk treats every line as line-matched across the Shenzhen supply chain and returned with its own price, MOQ, lead time, and condition rather than as a single catalog number — the same way the desk handles Mini-Fit Jr., Micro-Fit 3.0, JST XH/PH, and Phoenix Contact MSTB equivalents on the standard service workflow.

The 10-axis comparison framework applied to AT series candidates

Cross-references for the AT series fall into three groups. The first is genuine Amphenol AT variants in the same family but with a different key, suffix, or generation — these are documented by Amphenol and represent the lowest risk. The second is documented cross-brand equivalents in adjacent rectangular environmental connector families, where the manufacturer publishes a cross-reference and the AT form factor is either identical or very close. The third is visually similar alternatives that match on outline only — these are the highest risk and are treated as candidates only, never as interchangeable substitutes.

We compare every candidate on ten axes, with matched, differs, or unknown marked per axis, never on appearance alone. The full framework is published on the site at /compare, and the headline application is below.

Axis 1 — Form and fit outline

The AT06 plug and AT04 receptacle share a rectangular wedge-lock outline that is widely cloned. A genuine AT outline uses a specific wedge slot and a specific latch arm that cheaper clones sometimes reproduce imperfectly. For AT06-to-AT04 mated pairs in the same family, outline matches. For a clone from a non-Amphenol source, the outline is often close but the wedge slot tolerance or latch spring rate can differ. Matched for genuine AT to AT; differs for some clones on wedge slot depth; unknown unless the clone manufacturer publishes a cross-sectional drawing.

Axis 2 — Dimensions

The AT family uses a consistent pin spacing across way counts, and the way count drives the housing length. Genuine AT06 to AT04 of the same way count matches on length, width, and height. Cross-brand equivalents in the same IP class typically match on length and width within ±0.5 mm but can differ in mated height by 1–2 mm, which matters where the harness is routed through a tight enclosure. Matched within the AT family; differs on mated height for most cross-brand candidates; unknown unless the candidate datasheet publishes a mated-height figure.

Axis 3 — Pin-to-pin layout

Pin numbering on the AT family follows a standard convention, and contact retention is via a secondary wedge rather than the contacts themselves. A genuine AT-to-AT pin-to-pin match is guaranteed when the way count matches. Cross-brand candidates usually match the pin count but can differ on which cavity is cavity 1, which matters when the buyer is mating to an existing harness. Matched within the AT family; differs on cavity numbering for cross-brand candidates; unknown if the candidate datasheet does not publish the cavity numbering.

Axis 4 — Electrical parameters

The AT family is rated for signal and low-current power; current depends on contact size and wire gauge. Genuine AT contacts are rated to a published figure per AWG. Cross-brand candidates may use a thinner contact stock and rate the connector higher than the contact geometry supports, which is a common failure mode under vibration. Matched within the AT family at the same AWG; differs for some cross-brand candidates on current rating versus contact size; unknown unless the candidate datasheet publishes both current and the wire range it applies to.

Axis 5 — Mechanical parameters

The AT family is rated for a defined mating cycle count and a defined contact retention force. Genuine AT meets its published figures. Cross-brand candidates may use a softer housing polymer or a shallower wedge ramp and present a lower mating cycle count, often visible only after hundreds of mate cycles. Matched within the AT family; differs for some cross-brand candidates on mating cycles; unknown unless the candidate datasheet publishes cycle count.

Axis 6 — Environmental class

The AT family is designed for harsh environments and the manufacturer publishes a vibration and temperature class. Cross-brand candidates may match on temperature but not on vibration, which is the more common failure mode on construction and agricultural machinery. Matched within the AT family; differs for some cross-brand candidates on vibration; unknown unless the candidate datasheet publishes both.

Axis 7 — Ingress protection

The AT family is IP-rated when the correct seals and wedges are fitted, and the published IP class depends on whether the rating is for the mated or unmated state. Cross-brand candidates sometimes claim IP67 or IP69K from a photograph of a seal without publishing the test report. The desk treats an unverified IP claim as unknown and refuses to substitute it onto an IP-rated harness without a manufacturer test report. Matched for genuine AT with the correct seals; differs for some cross-brand candidates; unknown without a manufacturer test report.

Axis 8 — Temperature range

The AT family is published for a defined operating temperature range. Cross-brand candidates sometimes publish a tighter range that excludes cold-soak or under-hood conditions. Matched within the AT family; differs for some cross-brand candidates; unknown unless the candidate datasheet publishes a temperature range.

Axis 9 — Materials and plating

The AT family uses a specified housing polymer (commonly PBT or PA66) and contact plating (commonly tin or gold over a nickel underlayer). Cross-brand candidates sometimes use a cheaper polymer with a lower heat-deflection temperature and a tin-only plating with no gold option, which reduces mating durability and corrosion resistance. Matched within the AT family; differs for some cross-brand candidates on plating options; unknown without a materials datasheet.

Axis 10 — Certifications

The AT family carries a defined set of certifications relevant to its target markets, including USCAR for automotive, and various IEC and UL ratings. Cross-brand candidates may carry none, or carry a regional certification that does not transfer to the Russian or EAEU market. The desk does not hold EAC or TR CU certificates for connectors and does not claim to. EAC certification status should always be verified rather than assumed. Matched for genuine AT to its published file; differs for cross-brand candidates; unknown without a published certificate file.

Where an AT cross-reference is safe, and where it is not

A genuine AT06 plug to AT04 receptacle of the same way count, both sourced from the same Amphenol channel, is a safe cross-reference within the AT family, because Amphenol publishes the compatibility. A genuine AT-to-AT cross across way counts is not safe — a 6-pin AT06 does not mate with a 12-pin AT04, even though the outline is similar.

A documented cross-brand equivalent in a rectangular environmental family — for example a manufacturer-published cross from a second-source automotive connector line — is acceptable provided the cross is verified on all ten axes, the buyer has the manufacturer-published cross-reference document on file, and the target application does not depend on a tighter rating than the cross supports.

A visually similar clone is not recommended as a substitute for an IP-rated harness, a safety-circuit connection, an under-hood automotive application, or any application where the buyer cannot validate the candidate on a representative sample before committing volume. The desk refuses to substitute a visually similar clone onto a sealed connector BOM where the IP claim cannot be backed by a manufacturer test report. For these lines it is better to keep the genuine Amphenol AT part, request a last-time-buy where channel stock exists, or hold the line open pending a verified cross-reference.

What the desk can do for an AT series BOM

The standard service flow on /procurement applies to AT series lines in the same way it applies to Mini-Fit Jr., Micro-Fit, JST, and Phoenix Contact lines. The buyer sends the BOM — manufacturer, MPN, quantity per line, packaging preference, and any acceptance documents required. The desk line-matches the BOM across the Shenzhen supply chain and returns a per-line quote with price, MOQ, lead time, and condition. Where a line is allocation-constrained or end-of-life, the desk states that explicitly rather than substituting silently. Where a genuine AT06 plug needs a wedge and a seal and a contact as separate BOM lines, the desk adds the missing lines rather than treating the housing alone as the order.

For discontinued and EOL AT lines, the options are remaining channel stock, a documented cross-reference to an active AT variant, or a last-time-buy where inventory exists. Each is quoted with its own condition, documentation, and lead time. The desk does not promise a generic "we can find any AT line" — what each specific line can deliver is stated on the quote.

For buyers who require a manufacturer certificate of conformance, a PPAP, or a test report, the honest answer is that not every line can carry one. Where the channel can document it, the desk says so; where it cannot, the desk says so as well. The desk does not issue a document it cannot stand behind.

For buyers who require the part under DDP to a Russian or CIS destination, the desk arranges door-to-door delivery on a weekly consolidated air lane to Moscow and regional hubs, with customs clearance and duty included. Delivery is quoted per shipment because it depends on the consolidation schedule and destination. Whether a given shipment is quoted DDP, or on another term such as DAP or EXW, is confirmed on the quotation. The desk screens end users and end uses, classifies before quoting, and declines transactions that cannot be screened. The buyer is responsible for confirming that the specific part, brand, end-use, and end-user comply with the sanctions and export-control rules that apply to them, and the desk does not provide legal or sanctions advice.

Frequently asked questions

What does «аналог Amphenol AT» mean in a buyer question, and what should I send for a quote?

It means a buyer has an Amphenol AT part — typically an AT06 plug or AT04 receptacle in a 2-, 3-, 4-, 6-, 8-, or 12-way variant — and wants a cross-reference, an equivalent, or a re-supply. To quote accurately the desk needs the manufacturer and the full Amphenol MPN, the quantity per line, the preferred packaging form (reel, tube, bulk, or cut tape), and any acceptance documents required. Where the buyer is unsure which Amphenol line they have, a photograph of the housing and the wedge helps, but a part number is always preferred. Where the buyer wants a cross-reference rather than an exact Amphenol line, the target application and any critical ratings help confirm suitability. Missing data is queried rather than assumed.

Is a cross-referenced AT connector guaranteed to be an interchangeable substitute?

No. A cross-reference is a candidate, not a guarantee, because two rectangular environmental connectors can differ in housing polymer, contact gender, keying, IP class when mated versus unmated, current rating per contact, and on the certifications that matter for an automotive tier-one versus an industrial panel builder. The ten axes are checked per line and any unknown is stated openly. Final fit-for-purpose validation in the actual assembly remains the buyer's engineering decision. The desk's warranty is its own, as stated on the quotation, and is not a manufacturer warranty passed through an authorized channel.

Which parameters must match before I substitute an Amphenol AT connector?

The ten axes are form and fit outline, dimensions, pin-to-pin layout, electrical rating, mechanical behaviour (mating cycles, contact retention, wire range), environmental class (vibration, temperature), IP rating (mated versus unmated), temperature range, materials and plating, and certifications. Matching pin count alone is not enough. A substitute is only as safe as the weakest axis the application depends on. The buyer is responsible for the final fit-for-purpose decision in the assembly.

Can you source Amphenol AT parts below manufacturer MOQ?

Small quantities are accepted where the channel allows it, but the honest answer is that the real minimum is confirmed per line on the quote rather than stated as a blanket policy. The desk serves buyers of all sizes from the same team, and one-off repair quantities and small-batch assembly quantities are routine. Where a part is only available in full-package form, that is stated on the quote rather than imposed silently. Cut tape and partial packaging are available on many lines, but it depends on the supplier and is confirmed per part.

Can you ship Amphenol AT parts to Russia and the CIS under DDP?

Yes. Russia and the CIS are served by a dedicated weekly consolidated air lane to Moscow and regional hubs, cleared under DDP, with customs clearance and duty included. Transit on that lane is typically 7–15 days express, door-to-door. The exact timing is quoted per shipment because it depends on the consolidation schedule and destination city. Whether a given shipment is quoted DDP, or on another term such as DAP or EXW, is confirmed on the quotation. The desk screens end users and end uses, classifies before quoting, and declines transactions that cannot be screened. The buyer is responsible for confirming that the specific part, brand, end-use, and end-user comply with the sanctions and export-control rules that apply to them, and the desk does not provide legal or sanctions advice.

What documents come with an Amphenol AT shipment?

Every shipment includes a commercial invoice, packing list, and certificate of origin. Under DDP, customs clearance and duty are handled by the seller and are stated on the quote. Where a buyer's compliance program needs a manufacturer certificate of conformance, a PPAP, or a test report, that must be raised before sourcing, and the desk states honestly what each line can carry. Where the channel cannot document the certificate, the desk says so rather than supplying a document it cannot stand behind.

Who is responsible if a proposed AT substitute does not fit the application?

A cross-reference is a sourcing recommendation, and final fit-for-purpose validation in the assembly is the buyer's engineering responsibility. The source of each cross is documented and unknowns are flagged so the decision is informed. Taking a mating measurement on a sample before volume commitment is strongly advised. The desk's warranty is its own and is stated on the quotation.

How to submit an AT series BOM for a quote

Send the BOM through the inquiry form or by email; each inquiry is kept in one thread in the buyer portal. Include manufacturer and Amphenol MPN, quantity per line, packaging preference, and any acceptance documents required. Where the line is a substitute or a cross, the target application and any critical ratings help confirm suitability. A first response is targeted within one business day during local business hours; a large BOM or an allocation check may take longer, and that is flagged in email rather than left silent. The desk does not procure until the buyer confirms the quote. Scope, fees, and Incoterm are locked before anything is spent.

For discontinued and EOL AT lines, the options are remaining channel stock, a documented cross-reference to an active AT variant, or a last-time-buy where inventory exists. Each is quoted with its own condition, documentation, and lead time. The desk states which of these is actually available per line rather than promising one.

Verify against the original manufacturer datasheet and your own qualification process before committing volume.

Data Notes

Prepared by the icsourcedirect sourcing desk in Shenzhen, data through September 2026. The cross-reference framework, IP-class handling, and service flow described in this article are taken from the public pages on /compare, /procurement, and /quality; no manufacturer cross-reference document, certificate file, or test report is paraphrased here without a published source. The Amphenol AT family structure and the way-count breakdown are described from the manufacturer datasheet conventions typical of the family and not from any single confidential document. Quote-level specifics (price, MOQ, lead time, exact packaging form, exact AT06 or AT04 part availability) are not stated because they depend on the specific part and channel and are confirmed per line on the quotation. This article is general guidance from an independent distributor and procurement agent, not an authorized channel, and the desk does not hold EAC or TR CU certificates for connectors.

Send your BOM for a quote

To request a quote on an AT series line, or a mixed AT series BOM, send your BOM through the inquiry form on /inquiry or by email; each inquiry is kept in one thread in the buyer portal. A first response is targeted within one business day during local business hours; a large BOM or an allocation check may take longer and that is flagged in email rather than left silent.