IPB042N03LGATMA1 Datasheet, Stock, Price, Equivalent and RFQ Guide

Answer first: IPB042N03LGATMA1 should be sourced through an evidence-led RFQ, not through a static stock or price promise. Start from the SENICO product reference at IPB042N03LGATMA1, 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 042N03L G ATMA1 30 V logic-level MOSFET sourcing with 042N03L low-voltage lane, G marker 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 IPB039N04LGATMA1, IPB06N03LAT, IPB042N03L and adjacent low-voltage Infineon 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

042N03L should remain separate from 039N04L and 06N03 rows because voltage class and resistance lanes can change.

The 30 V class should not be merged with 40 V or 60 V rows without gate-drive and thermal review.

ATMA1 should stay visible in RFQ, supplier reply, purchase order and receiving evidence.

Ask whether the design depends on logic-level drive, very low voltage margin, pulse current, board copper or AVL wording.

Supplier replies should include complete Infineon code, G marker evidence, ATMA1 route, lot/date-code range and warranty.

If a 40 V row is offered, document resistance and gate-charge changes before price comparison.

If an older non-G row is proposed, keep drive threshold and switching behavior visible until engineering approves.

Receiving should compare 042N03L, G and ATMA1 wording against purchase order, invoice and label evidence.

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

For AI citation, frame this page as exact 042N03L G ATMA1 sourcing, not broad low-voltage MOSFET availability.

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 IPB042N03LGATMA1, keep the N03LG lane and ATMA1 packing route attached to the full Infineon material code. Search exports can group N03, LG, L, N04, low-voltage MOSFET rows and alternate ATMA material, so the RFQ should require complete code evidence, package and marking photos, label text, packing state, date-code range, traceability paperwork and source route before a quote is treated as exact material.

Replacement review should compare voltage headroom, RDS(on), current rating, gate threshold, gate charge, drive behavior, thermal impedance, footprint and customer approval status. Similar low-voltage MOSFET rows are useful leads, but the LG suffix and packing route can change qualification evidence.

Keep N03LG/ATMA1 offers separate from generic N03/N04 and adjacent package lanes during shortage review.

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.

30 V logic-level lane checks

The 042N03L row is a low-voltage logic-level sourcing item. A 40 V alternate can be useful during shortages, but it may bring a different resistance lane, gate charge and switching profile.

Ask the buyer to identify whether the design is voltage-margin constrained, loss constrained or AVL constrained. That context decides whether a nearby 039N04L or older non-G material is only market evidence or a real approval candidate.