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Alternative part analysis

BSN20-7 pin to pin replacement, cross reference, and alternative parts

Use this page to compare verified pin-to-pin replacement options for BSN20-7, review cross-reference notes, and move faster from part risk to sourcing action.

Find BSN20-7 vs BSN20-7, pin-to-pin alternatives, and mapped cross-reference options here.

Compare BSN20-7 against mapped pin-to-pin replacement options
Review package, lifecycle, stock, and MOQ in one view
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BSN20-7 pin to pin replacementBSN20-7 p2p replacementBSN20-7 cross referenceBSN20-7 replacementBSN20-7 alternativeBSN20-7 equivalent
Review source productBrowse Diodes IncorporatedSee Transistors - FETs, MOSFETs - Single category

BSN20-7 cross reference and pin-to-pin alternatives

Recommended Replacement Options

Start with the best mapped replacement options for BSN20-7, including pin-to-pin, functional, and cross-reference alternatives. Review the overview and core specifications, then submit an RFQ when the fit looks right.

Pin-to-pin option

BSN20-7

Diodes Incorporated

Pin-to-pin P2P drop-in for the obsolete onsemi BSS138L. Nexperia BSN20 (Diodes Incorporated 7-inch reel variant) is a 50 V N-channel enhancement mode MOSFET in SOT-23-3 with identical pinout to BSS138L. Logic-level gate drive (RDS(on) ~1.8 Ω at Vgs = 10 V), 0.18 A ID, 360 mW Pd. Same 50 V VDS class and SOT-23-3 footprint. Recommended when the design needs lower RDS(on) for reduced conduction loss vs BSS138L.

BSN20-7 is indexed here as a mapped pin-to-pin replacement for BSN20-7 with package, lifecycle, stock, MOQ, datasheet, and key attribute context for buyer review.

Manufacturer
Diodes Incorporated
Package
SOT23
Series
-
Category
Discrete Semiconductor Products
Stock
20,231
Available
17,364
Min Order
1
Datasheet
Available
Key Attributes: -

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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The left column stays visible so buyers can keep the spec label in view while scanning multiple alternatives.

Parameter Comparison Chart
Current part
BSN20-7

Diodes Incorporated

Alternative
BSN20-7

Diodes Incorporated

Part NumberBSN20-7BSN20-7
ManufacturerDiodes IncorporatedDiodes Incorporated
CategoryDiscrete Semiconductor ProductsDiscrete Semiconductor Products
SubcategoryTransistors - FETs, MOSFETs - SingleTransistors - FETs, MOSFETs - Single
PackageSOT23SOT23
Series--
Key Attributes--
DescriptionMOSFET N-CH 50V 500MA SOT23MOSFET N-CH 50V 500MA SOT23
Lifecycle--
Stock20,23120,231
Available17,36417,364
Min Order11
DatasheetAvailableAvailable
Actions

Cross-reference FAQ

Replacement Part Questions

Short answers for teams reviewing BSN20-7 replacement and equivalent-part options.

What is a cross-reference page for BSN20-7?

This page groups mapped replacement options for BSN20-7 so buyers and engineers can compare alternatives before requesting a quote or approving a substitute.

Does a mapped alternative mean a guaranteed drop-in replacement for BSN20-7?

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 BSN20-7 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 BSN20-7?

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 BSN20-7 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 BSN20-7, followed by the other alternatives shown in the comparison table.