AEC-Q200 Documents to Ask For in Mexico: the 8 AEC Test Documents, the 20 Tests on Walsin’s MT Approval Sheet, and the Files Venatech Holds

The AEC-Q200 documents to ask for are the base standard at Rev E, the seven Q200-001 to -007 test methods it calls up, and the maker’s own approval sheet showing each test and its limit. For Mexican programmes, Walsin Technology (Walsin) tabulates 20 AEC-Q200 tests on its MT sheet, and Venatech, the authorised Walsin distributor in Hong Kong, holds it.

Venatech Limited, an authorised Walsin distributor in Hong Kong, wrote this for a supplier quality or component engineer in Mexico who has to put a passive part into an automotive approval file. We read the Automotive Electronics Council’s document page, Walsin’s own MT approval sheet (August 2026) and MR approval sheet (March 2024), parsed Walsin’s MLCC and chip resistor exports, and checked our stock list as at 23 September 2026. External figures name their source and the day we fetched them, 11 November 2026. This is engineering guidance, not legal or customs advice; confirm requirements with your compliance team and your customer.

Why are AEC-Q200 documents a live question for Mexican suppliers now?

Because Mexico builds vehicles at a scale where every part needs a file. INEGI data, as published by Trading Economics with a 7 October 2026 release date, show Mexico produced about 301,803 light vehicles in September 2026, down 15.1% on a year earlier.

Those are INEGI’s figures, not ours. A slower month is also when engineering teams requalify and second-source, and that is where AEC-Q200 paperwork decides how fast a cross gets approved. A part with a complete document set goes into the approval file in days; a part without one stalls. We say nothing about any company’s programmes.

Which AEC-Q200 documents does the Automotive Electronics Council publish?

Eight for passives, plus general documents. The AEC’s document page, read on 11 November 2026, lists AEC-Q200 Rev E, the stress test qualification for passive components, and seven test methods: Q200-001 flame retardance, -002 human body model ESD, -003 beam load, -004 resettable fuses, -005 board flex and terminal bond strength, -006 terminal strength (SMD) and shear, and -007 voltage surge.

The same page lists general documents such as Q005, the lead-free test requirements, and notes that a Rev B of Q200-006 was uploaded in error and remains under revision, so Rev A is current. Two practical points follow. First, ask which revision of the base document the qualification was run to; Rev E is the one published today. Second, ask for the test method references inside the report, so your reviewer can see that board flex was run to -005 and terminal strength to -006, not to a house method.

What should a Walsin approval sheet show for AEC-Q200?

Each test, its method and its pass limit. Walsin’s MT series approval sheet, dated August 2026, is titled “Qualified to AEC-Q200”, covers 0201 to 1210 from 10 V to 1000 V, and tabulates 20 AEC-Q200 test items, including board flex to AEC-Q200-005 at 2 mm deflection for X7R held for 60 seconds, with capacitance change within ±12.5%.

The same sheet runs terminal strength to AEC-Q200-006 at 2 N for 0201 and 0402, 10 N for 0603 and 18 N for 0805 and up, beam load to AEC-Q200-003, and ESD to AEC-Q200-002. Walsin’s MR automotive chip resistor sheet (ASC_MR_V13) states AEC-Q200 compliance and lists board flex to AEC-Q200-005 at 2 mm for 10 seconds, terminal strength to -006 at 1 kg for 60 seconds, and ESD to -002 at 1 kV, 0.5 kV for 0402. Walsin’s word is “qualified” or “compliant”; AEC-Q200 is not a certificate, and we never write “certified”.

How many Walsin parts sit in AEC-Q200 and automotive series?

Thousands, across both product lines. We counted 2,291 distinct Walsin MLCC part numbers in the two series Walsin names as qualified to AEC-Q200, 2,173 MT and 118 ST soft termination, and 102,850 chip resistor part numbers in series Walsin labels automotive.

We checked the 1206 100 nF 100 V X7R line in full: 14 Walsin part numbers, 6 of them in AEC-Q200 series (3 MT, 3 ST), plus MG, general purpose, SG and SH parts. On the 23 September 2026 snapshot, the automotive stock sits in resistors: 5 automotive chip resistor part numbers, including MF12E3300FTL and MF12P3303FTL. For AEC-Q200 MLCC, request a quote and we source it through our authorised Walsin channel. Our guide to what AEC-Q200 actually certifies and AEC-Q200 MLCC: MT vs MG series cover the series split.

What is the document checklist for a Mexican approval file?

Six items, in the order a reviewer reads them. We built this list from the AEC’s 8 published passive documents and the test tables in Walsin’s MT and MR approval sheets:

1. The maker’s approval sheet or datasheet for the exact part number, showing AEC-Q200 wording and the test table.
2. The qualification test summary naming AEC-Q200 Rev E, or the revision used, and the family it covers.
3. The test method references, -002 ESD, -003 beam load, -005 board flex and -006 terminal strength, with the limits applied.
4. The lead-free status against Q005 where your customer asks for it, and the RoHS and halogen-free statements on the sheet.
5. A certificate of conformity per shipment with lot and date-code traceability, and original sealed Walsin packaging.
6. Your customer’s own add-ons, such as PPAP or IMDS entries, which come from the manufacturer; ask us and we will request them through our authorised channel, with no promise of timing.

How can Venatech help a Mexican team assemble the file?

How Venatech helps: we start from your current part and hand back the Walsin AEC-Q200 candidate with its sheet. Venatech Limited is Walsin’s authorised distributor in Hong Kong; we hold 28 Walsin datasheets, 451 pages, and our free VenaMatch tool decodes 18 manufacturers’ part numbers and crosses 800,000+ parts to Walsin with every difference stated.

Paste up to 500 part numbers into the cross-reference tool and filter by automotive grade, or upload a BOM. The ready-stock list is a Hong Kong snapshot dated 23 September 2026. We supply a certificate of conformity per shipment on request, with lot and date-code traceability, in small lots from Hong Kong; no lead-time or stock promise. The MLCC range lists the families.

The short version

For a Mexican automotive file, ask for the AEC-Q200 Rev E qualification, the test method references inside it, and the maker’s approval sheet with each test and limit. Walsin’s MT sheet tabulates 20 AEC-Q200 tests, and an automotive 1206 100 nF 100 V X7R line returns 6 Walsin parts in AEC-Q200 series.

Send us your current part numbers and your customer’s document list, and we will return Walsin candidates with the approval sheets attached. Which document does your reviewer ask for first?

Related reading

• What AEC-Q200 actually certifies
• AEC-Q200 MLCC: MT vs MG series
• AEC-Q200 compliant is not certified: the qualification report to ask for
• Free cross-reference tool and ready-stock snapshot

Last reviewed 11 Nov 2026.

Sources

Fetched 11 November 2026 unless stated.

• Automotive Electronics Council, AEC documents page: https://www.aecouncil.com/AECDocuments.html
• Trading Economics, Mexico car production, INEGI data for September 2026, release dated 7 October 2026: https://tradingeconomics.com/mexico/car-production
• Walsin MT series approval sheet, Automotive Capacitors Qualified to AEC-Q200, August 2026, held as 11_Automotive_MT.pdf
• Walsin MR automotive thick film chip resistor approval sheet ASC_MR_V13, March 2024, held as Walsin_MR_Automotive_Thick_Film_Chip_Resistor.pdf
• Walsin MLCC export 00_ALL_MLCC_parts_combined.xlsx, the chip resistor exports and the Venatech stock list as at 23 September 2026, counted by us.

Frequently asked questions