What is a cross-reference page for CSD18503Q5AT?
This page groups mapped replacement options for CSD18503Q5AT so buyers and engineers can compare alternatives before requesting a quote or approving a substitute.
Alternative part analysis
CSD18503Q5AT replacements, alternatives, and cross reference
Compare mapped replacement and alternative options for CSD18503Q5AT, then verify package, specifications, and application fit before approval.
Compare CSD18503Q5AT against mapped replacement options
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This product currently does not show a published cross-reference list. Use RFQ support if your team needs an alternative part review.
Specification view
Parameter Comparison Chart
A side-by-side view of the source part and its mapped alternatives so buyers and engineers can screen package, availability, lifecycle, and key descriptors before RFQ.
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| Parameter Comparison Chart | Current part CSD18503Q5AT Texas Instruments |
|---|---|
| Part Number | CSD18503Q5AT |
| Manufacturer | Texas Instruments |
| Category | Discrete Semiconductor Products |
| Subcategory | Transistors - FETs, MOSFETs - Single |
| Package | - |
| Series | NexFET™ |
| Key Attributes | - |
| Description | MOSFET N-CH 40V 100A 8VSON |
| Lifecycle | - |
| Stock | 153,193 |
| Available | 74,368 |
| Min Order | 1 |
| Datasheet | Request |
| Terminal Finish | Matte Tin (Sn) |
| Turn-Off Delay Time | 15 ns |
| Number of Elements | 1 |
| Turn On Delay Time | 4.5 ns |
| Drain to Source Voltage (Vdss) | 40V |
| Rise Time | 8.8ns |
| JESD-609 Code | e3 |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| HTSUS | 8541.29.0095 |
| Part Status | Active |
| REACH Status | REACH Unaffected |
| ECCN | EAR99 |
| Lead Free | Contains Lead |
| Lifecycle Status | ACTIVE (Last Updated: 3 days ago) |
| Mounting Type | Surface Mount |
| Factory Lead Time | 12 Weeks |
| Packaging | Tape & Reel (TR) |
| Terminal Position | DUAL |
| Peak Reflow Temperature (Cel) | 260 |
| Reach Compliance Code | not_compliant |
| Manufacturer | Texas |
| Element Configuration | Single |
| Terminal Form | NO LEAD |
| Case Connection | DRAIN |
| Operating Mode | ENHANCEMENT MODE |
| Technology | MOSFET (Metal Oxide) |
| FET Type | N-Channel |
| Sub-Categories | Transistors - FETs, MOSFETs - Single |
| Vgs (Max) | ±20V |
| Categories | Discrete Semiconductor Products |
| Transistor Application | SWITCHING |
| Transistor Element Material | SILICON |
| Operating Temperature | -55°C~150°C TJ |
| Drive Voltage (Max Rds On,Min Rds On) | 4.5V 10V |
| Additional Feature | AVALANCHE RATED |
| Vgs(th) (Max) @ Id | 2.3V @ 250μA |
| Series | NexFET™ |
| Package / Case | 8-PowerTDFN |
| Mount | Surface Mount |
| Pbfree Code | yes |
| Number of Terminations | 5 |
| Number of Pins | 8 |
| Length | 4.9mm |
| Gate to Source Voltage (Vgs) | 20V |
| Width | 6mm |
| Reflow Temperature-Max (s) | NOT SPECIFIED |
| Thickness | 1mm |
| Contact Plating | Copper, Tin |
| Continuous Drain Current (ID) | 19A |
| Current - Continuous Drain (Id) @ 25°C | 100A Tc |
| Fall Time (Typ) | 2.6 ns |
| DS Breakdown Voltage-Min | 40V |
| Gate Charge (Qg) (Max) @ Vgs | 16nC @ 4.5V |
| Base Part Number | CSD18503 |
| Rds On (Max) @ Id, Vgs | 4.3m Ω @ 22A, 10V |
| Input Capacitance (Ciss) (Max) @ Vds | 2640pF @ 20V |
| Drain-source On Resistance-Max | 0.0062Ohm |
| Power Dissipation-Max | 3.1W Ta 120W Tc |
| Manufacturer's Part No. | CSD18503Q5AT |
| Avalanche Energy Rating (Eas) | 157 mJ |
| Feedback Cap-Max (Crss) | 16 pF |
| Pulsed Drain Current-Max (IDM) | 321A |
| Actions |
Cross-reference FAQ
Replacement Part Questions
Short answers for teams reviewing CSD18503Q5AT replacement and equivalent-part options.
Does a mapped alternative mean a guaranteed drop-in replacement for CSD18503Q5AT?
Not automatically. Cross-reference mapping helps shortlist candidates, but package, electrical behavior, qualification scope, and approval rules still need to be checked before release.
Which parameters should teams compare first for CSD18503Q5AT alternatives?
Start with package, series, key attributes, lifecycle status, stock position, datasheet access, and the mapped pin-to-pin or cross-reference note. Then confirm application-specific requirements in the datasheet and RFQ stage.
Can I request a quote for an alternative to CSD18503Q5AT?
Yes. Use the product links or RFQ actions on this page to request pricing, availability, documentation, and sourcing support for any listed alternative part.
Is CSD18503Q5AT obsolete, and what replacement should buyers review first?
Check the lifecycle row on this page first. If buyers need a fast starting point, the strongest mapped replacement currently surfaced here is , followed by the other alternatives shown in the comparison table.
Engineering support
Need help validating the replacement path?
If your team is unsure whether a mapped alternative to CSD18503Q5AT from Texas Instruments is really usable, contact us for help on package fit, pin compatibility, key parameter gaps, and qualification-facing review questions.
Contact a hardware engineer
Email our engineering support contact at [email protected], or use the contact page if the question should be routed across sourcing, engineering, and support.
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Package and pin compatibility
Review whether the alternate path looks credible from package, footprint, and pin-level perspectives.
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Parameter and function gaps
Surface the electrical, interface, or application-fit questions that still need confirmation before approval.
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Qualification and approval prep
Organize the documentation, datasheet evidence, and validation checkpoints your internal team may still require.