AUIRFS8409-7P
automotive 40 V N-channel power MOSFET with very low on-resistance
Key details
| Part Number | AUIRFS8409-7P |
|---|---|
| Manufacturer | Infineon Technologies |
| Category | Power MOSFET |
| Lifecycle Status | Obsolete |
| Series | AUIRFS8409 |
| Package / Case | 7-lead D2PAK |
| Pin Count | 7 |
| Operating Temperature | -55°C to +175°C junction |
| Last Verified | 2026-07-18 |
Part information
AUIRFS8409-7P Overview
AUIRFS8409-7P is a Infineon Technologies automotive 40 V N-channel power MOSFET with very low on-resistance supplied in 7-lead D2PAK. This page uses the exact orderable code because package, grade, temperature and option suffixes can change compatibility.
Key Technical Specifications
| Drain-Source Voltage | 40 V |
|---|---|
| RDS(on) | 0.75 mΩ max |
| Continuous Drain Current | 240 A package limited |
| Qualification | AEC-Q101 |
| Polarity | N-channel |
Package and Ordering Notes
The listed package is 7-lead D2PAK with 7 pins, leads, lands or contacts. The featured image is a generic package illustration for form-factor identification and is not an actual date-code or lot photograph. Lifecycle is recorded as Obsolete; confirm current factory support and last-time-buy constraints before design-in.
Sourcing Guidance
AUIRFS8409-7P is a legacy or obsolete orderable code. Source only with date-code, label, package and traceability checks appropriate to the application.
For an accurate quotation, include the full MPN, target quantity, acceptable date-code range, packaging format and destination. Icearth can help review traceability documents, label photos and electrical/package alignment before order placement.
Manufacturer Documentation
Technical values were checked against Infineon Technologies documentation. Use the linked datasheet as the controlling source and re-check revisions before PCB release or firmware qualification.
AUIRFS8409-7P selection and design context
AUIRFS8409-7P is cataloged as a Power MOSFET in the AUIRFS8409 family. Its recorded function is automotive 40 V N-channel power MOSFET with very low on-resistance. Selection should be based on the complete electrical limits, package drawing and ordering suffix rather than the abbreviated family code.
- Drain-Source Voltage: 40 V. Check rail compatibility, tolerance and sequencing under worst-case conditions.
- RDS(on): 0.75 mΩ max. Confirm the value and its datasheet test conditions for the exact ordering suffix.
- Continuous Drain Current: 240 A package limited. Check steady-state, transient and thermal margin in the intended operating mode.
- Qualification: AEC-Q101. Confirm the value and its datasheet test conditions for the exact ordering suffix.
Application and qualification considerations
When evaluating this switching device, confirm voltage and current margin, gate-drive conditions, on-state loss, switching energy, thermal impedance and safe operating area. For a new design, review power-up behavior, interface timing, absolute maximum ratings, thermal limits and any external-component requirements in the latest manufacturer documentation. Existing-board replacement work should additionally confirm pinout, footprint, firmware assumptions and qualification grade.
Procurement checks for AUIRFS8409-7P
The recorded package is 7-lead D2PAK, the temperature range is -55°C to +175°C junction, and the lifecycle status is Obsolete as of 2026-07-18. Before ordering, confirm the exact MPN on the label, packing format, quantity, date-code requirements, traceability documents and current factory status.
AUIRFS8409-7P FAQ
What distinguishes AUIRFS8409-7P within the AUIRFS8409 family?
AUIRFS8409-7P is the exact orderable code for a automotive 40 V N-channel power MOSFET with very low on-resistance in 7-lead D2PAK. Related AUIRFS8409 devices may change package, rating, interface option or qualification grade, so compare the manufacturer ordering table before substitution.
What package and footprint checks are required for AUIRFS8409-7P?
AUIRFS8409-7P is recorded in 7-lead D2PAK with 7 pins, leads or contacts. Confirm the manufacturer package drawing, dimensions, pin numbering, exposed-pad requirements and packing suffix before releasing a PCB footprint.
Which specifications should be verified when selecting AUIRFS8409-7P?
Drain-Source Voltage is recorded as 40 V, RDS(on) is recorded as 0.75 mΩ max. Use the latest datasheet for minimum and maximum limits, test conditions, timing and absolute maximum ratings rather than relying only on a distributor summary.
What is the lifecycle status of AUIRFS8409-7P?
AUIRFS8409-7P was recorded as Obsolete when verified on 2026-07-18. Reconfirm factory status, revision availability, lead time and any last-time-buy notice before design-in or volume procurement.
What information should be included in an RFQ for AUIRFS8409-7P?
Provide the complete AUIRFS8409-7P orderable code, target quantity, acceptable date-code range, required packing method, delivery destination and documentation needs. For replacement work, also identify the existing package and any mandatory qualification grade.
Lifecycle and sourcing review
This part has a legacy lifecycle status. Submit the exact MPN, quantity, delivery destination and date-code requirements for a sourcing review.
AUIRFS8409-7P is a legacy or obsolete orderable code. Source only with date-code, label, package and traceability checks appropriate to the application.