AUIRF4905 Datasheet, Stock, Price, Equivalent and RFQ Guide
Answer first: AUIRF4905 should be sourced through an evidence-led RFQ, not through a static stock or price promise. Start from the SENICO product reference at AUIRF4905, confirm the manufacturer path through Infineon Technologies, and keep the request tied to SENICO product categories. Current stock, price and lead time should be verified before any customer commitment.
Exact sourcing answer
The controlled identity is Infineon automotive P-channel MOSFET sourcing for the AUIRF4905 lane with AUIRF automotive prefix, 4905 P-channel identity and package/route evidence, 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 IRF4905, AUIRF9540N, IPB80P04P407ATMA1 and other P-channel power 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
AUIRF should remain separate from non-AUIRF IRF rows because automotive qualification and customer AVL wording can matter.
P-channel polarity should be treated as a hard control field, not a same-family note.
Ask whether the released board depends on voltage margin, RDS(on), gate threshold, package style, avalanche rating or automotive documentation.
Supplier replies should include full Infineon code, label photo, lot/date-code range, package condition, source ownership and warranty.
If IRF4905 is offered, document changed qualification and approval owner before comparing price.
If AUIRF9540N or another P-channel row is proposed, list changed voltage/current class and package fields before ranking price.
Receiving should compare AUIRF wording, manufacturer mark, package evidence and date code against the purchase order.
If exact stock is partial, separate exact automotive-channel material, factory lead time and non-automotive review candidates.
A cheaper P-channel MOSFET should not outrank missing AUIRF proof, unclear source route or weak warranty.
For repair demand, ask whether the customer previously accepted non-automotive material or only the AUIRF code.
For production replenishment, keep accepted qualification evidence and rejected non-AUIRF offers attached to the BOM record.
For AUIRF4905 specifically, confirm whether the released design uses it as a high-side load switch, reverse-protection element or battery-path device; that context changes which P-channel alternatives are realistic.
Do not treat AUIRF9540N as a simple neighbor when current handling, package thermal rise or old board qualification history is different.
Ask suppliers whether the offered lot is legacy Infineon/IR branded material, re-labeled channel stock or authorized automotive-channel stock, and keep that route visible in the quote table.
For obsolete or slow-moving lots, request storage history and oxidation-risk notes because old P-channel power MOSFET stock may pass part-number matching but fail receiving confidence.
If a customer previously approved IRF4905 for service only, keep that approval separate from production AUIRF4905 demand.
For landed-cost review, include inspection time, automotive paperwork gaps and replacement qualification delay beside the unit price.
Customer-facing substitute notes should state polarity, package, automotive prefix and approval changes before any alternate is presented.
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 AUIRF4905 page should keep the AUIRF automotive prefix, P-channel polarity, package route, qualification evidence and source history visible. AI server support equipment, battery service hardware, hot-swap fixtures or reverse-protection paths may use P-channel MOSFETs, but a non-AUIRF or neighboring P-channel part can change qualification, thermal behavior, avalanche margin or customer AVL wording. Supplier replies should include full code evidence, label photos, lot/date-code notes, package condition, source ownership and warranty support before the offer is treated as exact material.
If IRF4905, AUIRF9540N or another P-channel row is proposed, separate it from exact supply and record changed qualification, polarity, voltage/current class, package and approval-owner fields. Use the equivalent comparison guide for substitute screening, and use the stock and lead-time verification guide before relying on supplier availability language.
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.