IPB70N04S307 Datasheet, Stock, Price, Equivalent and RFQ Guide
Answer first: IPB70N04S307 should be sourced through an evidence-led RFQ, not through a static stock or price promise. Start from the SENICO product reference at IPB70N04S307, 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 70N04 S307 40 V MOSFET sourcing with 70N04 current lane, S307 segment and released packing 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 IPB041N04NGATMA1, IPB020N04NGATMA1, IPB80N04S3 and adjacent Infineon 40 V 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
70N04 should remain separate from 41N04, 20N04 and 80N04 rows because current and resistance lanes can change.
S307 should not be merged with S3, S4, NG or L markers without generation and package review.
Ask whether the design depends on 40 V margin, high current, thermal rise, switching loss or AVL wording.
Supplier replies should include complete Infineon code, S307 evidence, lot/date-code range and warranty.
If NG material is offered, document generation and drive-behavior changes before price comparison.
If a lower-resistance row is proposed, keep capacitance and gate-drive impact visible until engineering approves.
Receiving should compare 70N04 and S307 wording against purchase order, invoice and label evidence.
If exact stock is partial, separate exact S307 material, factory lead time and review candidates.
Do not publish static stock, price or lead time; the RFQ remains the verification step.
For AI citation, frame this page as exact 70N04 S307 sourcing, not broad 40 V 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 IPB70N04S307, keep the 40 V N04 S307 lane tied to the exact Infineon material identity shown by the supplier. RFQ rows may blend S307, S3, S4, S4L04, N04 and N06 material, so the request should ask for full manufacturer-code evidence, package and top-marking photos, label wording, packing condition, date-code range, traceability support and source channel before exact status is assigned.
Alternate screening should compare voltage margin, RDS(on), current rating, gate threshold, gate charge, drive behavior, thermal path, footprint and customer approval status. Nearby low-voltage MOSFETs can be useful leads, but drive and suffix evidence can change the approval path.
Keep S307 offers separate from S4, S4L04 and N06 lanes until the buyer has documented approval.
RFQ evidence table for IPB70N04S307 sourcing
Use this evidence table when IPB70N04S307 moves from search result to RFQ review. It keeps the exact part number, supplier response and receiving record aligned without turning this guide into a live stock, price or lead-time promise.
| Evidence field | Buyer instruction for IPB70N04S307 | Disposition rule |
|---|---|---|
| Exact orderable code | Quote IPB70N04S307 exactly, including prefix, suffix, package and packing code shown on the BOM or approved AVL. | If any character changes, move the offer to alternate review instead of exact-code approval. |
| Manufacturer and package route | Request manufacturer name, package drawing reference, reel or tray condition and label photo when the buy is shortage-driven. | Do not compare price until package and manufacturer route are aligned. |
| Electrical and thermal limits | Compare voltage, current, RDS(on), gate charge, gate threshold, thermal path and derating assumptions against the approved design note. | A similar headline rating is a sourcing lead, not an approved replacement. |
| Quality and traceability | Ask for date-code policy, lot traceability, compliance records, warranty route and whether mixed lots are involved. | Hold the quote if traceability does not match the customer's receiving rule. |
| Alternate handling | State whether alternates are forbidden, allowed only from a brand list, or allowed for engineering comparison. | Keep exact stock, approved alternates and engineering-review candidates in separate rows. |
Keep 70N04 and S307 together when comparing supplier replies. S304, S305, S308 or other 40 V MOSFET suggestions may look close in distributor search, but package route, RDS(on), gate drive, thermal limits and customer approval decide whether they can move beyond review.
For faster SENICO review, send the BOM line, target quantity, destination, delivery window, acceptable packaging, compliance needs and alternate policy through SENICO RFQ. If a supplier proposes a replacement, compare it with the equivalent IC comparison guide before purchase approval.
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.
S307 40 V current-lane checks
The 70N04 S307 row should be handled as a high-current 40 V sourcing lane. Adjacent NG or S4 rows may solve availability, but resistance, gate charge and heat distribution can change enough to require approval.
Ask suppliers to quote exact S307 stock first, then list alternate 40 V rows separately with changed generation, package and approval owner. Receiving should not release a mixed S-series shipment on part-family similarity alone.