IPB120N08S404ATMA1 Datasheet, Stock, Price, Equivalent and RFQ Guide

Answer first: IPB120N08S404ATMA1 should be sourced through an evidence-led RFQ, not through a static stock or price promise. Start from the SENICO product reference at IPB120N08S404ATMA1, 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 80 V MOSFET sourcing for the 120N08 S404 ATMA1 lane with 120N08 current/voltage class, S404 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 IPB120N08S403ATMA1, IPB120N08S4, IPB120N08S404ATMA2 and other 80 V Infineon 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

S404 should not be collapsed into S403 or a generic S4 row unless changed-segment approval is recorded.

ATMA1 should remain a controlled route field from RFQ through receiving because packing route changes can matter to the buyer.

Ask whether the demand is constrained by 80 V margin, resistance, switching waveform, thermal pad performance or a released BOM.

Supplier replies should show full Infineon wording, label photo, lot/date-code range, package condition, stock ownership and warranty.

If S403 is offered, document the S404-to-S403 change before comparing price, delivery or available quantity.

Receiving should compare the S404 segment, ATMA1 route and manufacturer evidence against the purchase order.

If exact stock is partial, separate exact material, factory lead time and same-family alternates before advising planning.

A lower-price 120N08 row should remain provisional when segment, route or traceability proof is incomplete.

For service builds, ask whether past repairs accepted S403 or whether the customer locked this specific S404 record.

If S403 and S404 quotes arrive together, ask for separated label evidence and changed-field notes.

For urgent demand, keep any non-S404 offer outside exact supply until engineering or customer approval is explicit.

Customer-facing substitute notes should name segment and route changes before approval.

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

IPB120N08S404ATMA1 should be controlled as an 80 V Infineon S404 ATMA1 lane. A supplier may present S403, a broad S4 row or an ATMA2 route as a shortage option, but those responses need changed-field notes before they can be compared with exact material.

The RFQ should ask whether the board depends on 80 V margin, switching waveform, thermal pad behavior, package route or a historical service approval. Those details decide whether a nearby 120N08 row is useful context, a review candidate or a reject line.

For customer communication, separate exact S404 ATMA1 quantity, future route timing and same-family review candidates. This keeps the sourcing answer evidence-led and prevents search snippets or AI summaries from treating an incomplete supplier quote as verified availability.

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.