What is a cross-reference page for STB21N90K5?
This page groups mapped replacement options for STB21N90K5 so buyers and engineers can compare alternatives before requesting a quote or approving a substitute.
Alternative part analysis
STB21N90K5 replacements, alternatives, and cross reference
Compare mapped replacement and alternative options for STB21N90K5, then verify package, specifications, and application fit before approval.
Compare STB21N90K5 against mapped replacement options
Review package, lifecycle, stock, and MOQ in one view
Move from engineering screening to RFQ without leaving the page
No mapped replacement parts yet
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.
swipe Swipe or scroll horizontally to compare more part numbers
The left column stays visible so buyers can keep the spec label in view while scanning multiple alternatives.
| Parameter Comparison Chart | Current part STB21N90K5 STMicroelectronics |
|---|---|
| Part Number | STB21N90K5 |
| Manufacturer | STMicroelectronics |
| Category | Discrete Semiconductor Products |
| Subcategory | Transistors - FETs, MOSFETs - Single |
| Package | TO-263-3 |
| Series | SuperMESH5™ |
| Key Attributes | - |
| Description | MOSFET N-CH 900V 18.5A D2PAK |
| Lifecycle | - |
| Stock | 136,627 |
| Available | 89,366 |
| Min Order | 1 |
| Datasheet | Available |
| Part Status | Active |
| REACH Status | REACH Unaffected |
| ECCN | EAR99 |
| Lead Free | Lead Free |
| Mounting Type | Surface Mount |
| Factory Lead Time | 26 Weeks |
| Packaging | Cut Tape (CT) |
| Terminal Form | GULL WING |
| Peak Reflow Temperature (Cel) | 245 |
| Manufacturer | STMicroelectronics |
| Case Connection | DRAIN |
| Operating Mode | ENHANCEMENT MODE |
| Subcategory | FET General Purpose Power |
| Technology | MOSFET (Metal Oxide) |
| FET Type | N-Channel |
| Sub-Categories | Transistors - FETs, MOSFETs - Single |
| Categories | Discrete Semiconductor Products |
| Transistor Application | SWITCHING |
| Transistor Element Material | SILICON |
| Operating Temperature | -55°C~150°C TJ |
| Package / Case | TO-263-3, D2Pak (2 Leads + Tab), TO-263AB |
| Avalanche Energy Rating (Eas) | 200 mJ |
| Vgs (Max) | ±30V |
| Lifecycle Status | ACTIVE (Last Updated: 8 months ago) |
| Reflow Temperature-Max (s) | 30 |
| Radiation Hardening | No |
| Mount | Surface Mount |
| Number of Pins | 3 |
| Terminal Position | SINGLE |
| Number of Terminations | 2 |
| Drive Voltage (Max Rds On,Min Rds On) | 10V |
| Gate to Source Voltage (Vgs) | 30V |
| Fall Time (Typ) | 40 ns |
| Power Dissipation | 250W |
| Power Dissipation-Max | 250W Tc |
| Continuous Drain Current (ID) | 18.5A |
| Gate Charge (Qg) (Max) @ Vgs | 43nC @ 10V |
| Drain to Source Breakdown Voltage | 900V |
| Resistance | 299mOhm |
| Vgs(th) (Max) @ Id | 5V @ 100μA |
| Pulsed Drain Current-Max (IDM) | 74A |
| Current - Continuous Drain (Id) @ 25°C | 18.5A Tc |
| Base Part Number | STB21N |
| Series | SuperMESH5™ |
| Input Capacitance (Ciss) (Max) @ Vds | 1645pF @ 100V |
| Rds On (Max) @ Id, Vgs | 299m Ω @ 9A, 10V |
| Manufacturer's Part No. | STB21N90K5 |
| JESD-609 Code | e3 |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| JESD-30 Code | R-PSSO-G2 |
| HTSUS | 8541.29.0095 |
| ECCN Code | EAR99 |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Rise Time | 27ns |
| Number of Elements | 1 |
| Configuration | SINGLE WITH BUILT-IN DIODE |
| Turn On Delay Time | 17 ns |
| Turn-Off Delay Time | 52 ns |
| Actions |
Cross-reference FAQ
Replacement Part Questions
Short answers for teams reviewing STB21N90K5 replacement and equivalent-part options.
Does a mapped alternative mean a guaranteed drop-in replacement for STB21N90K5?
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 STB21N90K5 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 STB21N90K5?
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 STB21N90K5 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 STB21N90K5 from STMicroelectronics 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.
developer_board
Package and pin compatibility
Review whether the alternate path looks credible from package, footprint, and pin-level perspectives.
tune
Parameter and function gaps
Surface the electrical, interface, or application-fit questions that still need confirmation before approval.
task_alt
Qualification and approval prep
Organize the documentation, datasheet evidence, and validation checkpoints your internal team may still require.