IPB90N04S402ATMA1 Datasheet, Stock, Price, Equivalent and RFQ Guide

Answer first: IPB90N04S402ATMA1 should be sourced through an evidence-led RFQ, not through a static stock or price promise. Start from the SENICO product reference at IPB90N04S402ATMA1, 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 N-channel MOSFET sourcing for the 90N04 S402 ATMA1 lane with 90N04 class, S402 segment and ATMA1 route, 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 IPB80N04S403ATMA1, IPB80N04S304ATMA1, IPB90N06S404ATMA1 and IPB80N07S405ATMA1 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

The 90N04 class should not be merged with 80N04 or 90N06 rows without checking current class, voltage class and released electrical segment.

Ask whether the design depends on 40 V margin, RDS(on), gate-drive behavior, thermal path or an approved Infineon branch.

S402 should remain separate from S403 and S304 branches until engineering or purchasing approves the changed field.

ATMA1 should stay visible in quote and receiving documents so route changes are not hidden behind a shortened title.

Supplier replies should include full code, label photo, date-code range, package condition, stock ownership and warranty terms.

For urgent buys, split exact quantity from 80N04 or 90N06 review rows so planning does not overcount substitutes.

Receiving should compare 90N04S402ATMA1 against the purchase order, invoice and reel label before release.

If a same-family suggestion has better price, require changed-field notes before it affects ranking.

A supplier quote without route or traceability evidence should stay provisional even if the price is attractive.

The public page should support RFQ verification and alternate review rather than publish static stock claims.

For BOM substitutions, document whether S402 is a binding AVL field before allowing S403 or S304 suggestions into customer-facing notes.

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.

Maintenance hardening notes

For IPB90N04S402ATMA1, keep the 90N04 class, S402 segment and ATMA1 route together as the exact lane. 80N04 S403, 80N04 S304 or 90N06 suggestions can be useful for shortage discovery, but they should be shown as review rows with changed current, voltage, segment or route fields before any commercial comparison.

Ask suppliers to separate exact S402ATMA1 material from same-family Infineon rows in the quote response. The changed-field note should explain whether resistance class, voltage margin, gate behavior, thermal path, package evidence or customer approval language changes, and it should name the approval owner.

For repeat production demand, store the accepted S402 boundary beside the BOM so future buyers do not treat a shortened 90N04 title as enough evidence. This is especially important when a supplier mixes exact quantity with nearby 80N04 or 90N06 offers in one spreadsheet.

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.

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.