IPB120N10S403ATMA1 Datasheet, Stock, Price, Equivalent and RFQ Guide

Answer first: IPB120N10S403ATMA1 should be sourced through an evidence-led RFQ, not through a static stock or price promise. Start from the SENICO product reference at IPB120N10S403ATMA1, confirm the manufacturer path through Infineon Technologies, and keep the request tied to FETs and MOSFETs. Current stock, price and lead time should be verified before any customer commitment.

Exact sourcing answer

The controlled identity is Infineon 120N10 S403 100 V MOSFET sourcing with 120N10 current class, S403 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 IPB120N06NG, IPB100N10S402ATMA1, IPB80N10S4 and other Infineon N10/N06 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

120N10 should remain separate from 120N06 rows because voltage class changes from 100 V to 60 V.

S403 should not be merged with S402 or other S4 segments without generation and approval review.

ATMA1 should stay visible because route and packing evidence can affect receiving and customer paperwork.

Ask whether the design depends on 100 V margin, current load, conduction loss, gate-drive behavior or customer AVL wording.

Supplier replies should include full Infineon code, reel label photo, S403 and ATMA1 evidence, lot/date-code range, source route and warranty.

If an N06 row is offered, document changed voltage margin before price comparison.

If a 100N10 row is proposed, keep it in current/resistance-class review until differences are approved.

Receiving should compare 120N10, S403 and ATMA1 wording against purchase order, invoice and reel label evidence.

If exact stock is partial, separate exact ATMA1 material, factory lead time and N10 review candidates.

A lower-price N10 row should not outrank missing S403 proof, changed route or unclear warranty.

For repeat orders, store accepted S403/ATMA1 boundaries and rejected N06/S402 rows beside the BOM record.

Customer-facing substitute notes should state voltage class, current class, segment, route 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

For IPB120N10S403ATMA1, keep the 120N10 voltage class, S403 generation marker and ATMA1 packing route tied to the complete Infineon orderable number. Supplier rows may blend S302, S403, N04, N06, N10 and package-near IPB MOSFET variants, so the RFQ should require full manufacturer-code evidence, package and top-marking photos, label wording, reel or cut-tape condition, date-code window, traceability documents and source route before treating an offer as exact material.

Equivalent review should compare voltage headroom, RDS(on), current rating, gate-charge profile, drive condition, switching behavior, thermal path, footprint and customer approval status. A shared N10 family row can support discovery, but suffix, generation and package evidence still decide whether it can move from pending evidence to approved use.

Keep S403 and ATMA1 exceptions searchable with the final buyer or engineering decision.

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.