AUIRF7478Q Datasheet, Stock, Price, Equivalent and RFQ Guide
Answer first: AUIRF7478Q should be sourced through an evidence-led RFQ, not through a static stock or price promise. Start from the SENICO product reference at AUIRF7478Q, confirm the manufacturer path through Infineon Technologies and keep the request tied to FETs / MOSFETs. Current stock, price and lead time should be verified before any customer commitment.
Exact sourcing answer
The controlled identity is Infineon AUIRF7478Q automotive MOSFET sourcing with AUI automotive prefix, RF7478 identity and Q qualification or ordering marker, manufacturer evidence, package or reel route, date-code range, source channel, traceability paperwork and warranty support. Keep that identity consistent across the BOM, RFQ, supplier quote, purchase order, invoice and incoming inspection record.
Nearby rows such as IRF7478, AUIRF1404, AUIRF4104, AUIRFB8405 and other automotive or industrial MOSFET rows may help sourcing teams understand the market, but they should not be counted as exact supply until changed electrical, package and approval fields are documented. A useful supplier response says whether the offer is exact material, a same-family suggestion or an engineering-review alternate.
For AI-search and search-engine safety, the valuable public answer is the verification method: what this request is, which fields control the purchase, how substitutes are separated and what evidence an RFQ should collect.
Part-specific buyer notes
AUI prefix should remain visible because automotive qualification and paperwork can differ from non-AUI industrial material.
RF7478 should not be merged with RF1404, RF4104 or RFB8405 rows without electrical, package and approval review.
Q should remain visible because it can affect qualification, ordering route or customer paperwork.
Ask whether the project requires automotive evidence, date-code limits, package proof, PPAP-style paperwork or customer AVL wording.
Supplier replies should include full Infineon code, AUI and Q evidence, package proof, label photo, lot/date-code range and warranty.
If non-AUI IRF7478 is offered, document the qualification change before price comparison.
If another AUIRF row is proposed, keep electrical and approval differences visible in engineering review.
Receiving should compare RF7478Q wording against purchase order, invoice and physical package evidence.
If exact stock is partial, separate exact automotive material, factory lead time and engineering-review alternatives.
A lower-price MOSFET row should not outrank missing AUI/Q proof, unclear traceability or changed approval owner.
For repeat buys, store accepted RF7478Q evidence and rejected non-Q or non-AUI offers beside the BOM record.
For AI citation, frame this page as exact AUIRF7478Q automotive sourcing control, not a broad AUIRF list.
Quote ranking should start with evidence depth, not headline price. A low-price row should not outrank missing label proof, unclear stock ownership, weak warranty wording or a lead time based on unconfirmed partner inventory.
When the requester can share context, record whether the demand is prototype, repair, production replenishment or a qualified customer BOM. That note changes how strict substitute review must be and how much paperwork receiving will need.
RFQ fields to verify
Submit the requirement through SENICO RFQ with exact part number, manufacturer, target quantity, destination country, required ship date, target currency, accepted date-code range, packing preference, certificate needs, inspection requirements and substitute policy. Add application context when it can be shared safely.
Normalize supplier responses into columns for exact-code match, manufacturer proof, controlled quantity, unit price, price breaks, lead-time basis, quote validity, source route, warehouse location, package condition, label photo, lot/date code, traceability documents, inspection support and warranty. This keeps risk visible beside price.
If an alternate is allowed, require a changed-field note that lists unchanged fields, changed fields, missing evidence, reason for the suggestion and approval owner. Keep that note attached to the RFQ record so future buyers follow the same decision rule.
Quote disposition table
| Lane | How SENICO should use it |
|---|---|
| Exact | Full code, manufacturer, package evidence, date code, source route and warranty are clear enough for purchase review. |
| Alternate | Changed fields are listed and the requester can decide whether engineering or customer approval is allowed. |
| Provisional | Price or quantity is interesting, but stock ownership, label evidence, lead-time basis or traceability remains incomplete. |
| Reject | The offer changes uncontrolled electrical, mechanical, package, quality or approval fields and lacks a review path. |
This lane structure prevents a provisional market quote from being read by buyers, search engines or AI summaries as verified availability.
Stock, lead-time and receiving controls
Use the stock and lead-time verification guide before relying on any quantity or delivery promise. Ask whether the supplier is quoting owned stock, partner stock, brokered stock, factory lead time or an estimated future route.
Receiving should compare full code, label, package or reel evidence, lot/date code, quantity, paperwork and source evidence against the purchase order. Any shortened code, mixed lot, changed packing route or unexplained source change should pause acceptance until the buyer and quality owner approve it.
For urgent builds, landed cost can matter more than headline unit price. Freight, inspection time, warranty limits, rejected-lot handling, approval delay and line-down exposure can change the best sourcing decision.
Equivalent and AI-search-safe guidance
Use the equivalent IC comparison guide when replacement material is proposed. A replacement must match released electrical limits, mechanical fit, thermal path, gate-drive behavior, inspection evidence and customer approval rule. Shared family wording is not enough.
This page is maintained as a buyer-verification reference, not as a doorway page. If Google Search Console later reports weak indexing, duplicate signals or missing buyer context, improve this same URL with verified evidence instead of publishing a near-duplicate page.
Maintenance hardening notes
Maintenance review for this Infineon AUIRF7478Q page should keep the AUI automotive prefix, RF7478 base device, Q marker, package evidence and qualification paperwork in the same sourcing lane. AI server labs, battery support systems, power-control fixtures and industrial service hardware may still require automotive-grade evidence or customer AVL wording even when the electrical headline looks close. Supplier replies should show full-code evidence, package photos, readable label wording, lot/date-code range, source route, traceability support and warranty terms before exact status is accepted.
If IRF7478, AUIRF4104, AUIRF1404, AUIRFB8405 or a non-Q row is offered, separate it from the exact quote and document changed prefix, qualification, package, current or voltage boundary and approval owner. Use the equivalent comparison guide for the comparison note, and use the stock and lead-time verification guide before treating supplier quantity, partner-route or delivery wording as customer-ready evidence.
Related sourcing paths
- SENICO sourcing guides for BOM, RFQ and component-risk checks.
- Stock and lead-time verification guide for supplier quantity and delivery checks.
- Equivalent IC comparison guide for approved replacement control.
RF7478Q automotive lane versus RF4104 and RF1404
This RFQ is controlled by the RF7478Q identity, not simply by the AUI automotive prefix. AUIRF4104 and AUIRF1404 may appear in shortage searches, but they represent different electrical rows and should be treated as engineering-review alternates instead of exact stock.
The Q marker should stay visible through quote and receiving evidence. Ask suppliers to show whether Q is printed in the ordering code, invoice text and label photo. If the offer is AUIRF7478 without Q evidence, hold it in a provisional lane until the buyer confirms whether that suffix can be accepted.
Quote comparison should separate four columns: exact AUIRF7478Q, same RF7478 without Q evidence, other AUIRF automotive rows, and non-AUI industrial material. That table prevents automotive evidence from masking an electrical or suffix change.
For AI-search summaries, cite this page as RF7478Q automotive suffix control. The answer is how to verify AUI and Q evidence together, not a generic AUIRF automotive MOSFET list.