Alternatives to Diodes Incorporated BAS40
Diodes Incorporated BAS40 and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 BAS40Diodes Incorporated |  BAS40LT1Gonsemi |  BAS40-TPMCC (Micro Commercial Components) | +2more | |
|---|---|---|---|---|
| FFF Compatibility | Matches the SOT-23 package footprint and the Pin 1 (Anode), Pin 2 (NC), Pin 3 (Cathode) pinout baseline.Housed in an identical SOT-23 surface-mount package.Exceeds or meets all electrical parameters including 40V Vr, 120mA-200mA average current, and ultra-fast switching. | Matches SOT-23-3 footprint and standard pin configuration (Pin 1 Anode, Pin 2 NC, Pin 3 Cathode).Identical SOT-23 standard package dimensions.Full performance compatibility with a 40V reverse voltage rating and ultra-fast 5ns reverse recovery. | ||
 AI Summary | BAS40 by Diodes Incorporated: Diode 40 V 200mA Surface Mount SOT-23-3. | This is a high-availability, industry-standard drop-in replacement from a top-tier manufacturer. It completely matches all mechanical dimensions and electrical parameters.
| A fully compatible alternative offering a robust 200mA continuous current rating and standard SOT-23 packaging. It is actively supported and widely stocked.
| |
| Lifecycle Status | Obsolete | Active | Active | |
| Market Availability | In stock | In stock | In stock | |
| REACH | REACH | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
| Description | Diode 40 V 200mA Surface Mount SOT-23-3 | Diode 40 V 120mA Surface Mount SOT-23-3 (TO-236) | Diode 40 V 200mA Surface Mount SOT-23 | |
| Manufacturer | Diodes Incorporated | onsemi | MCC (Micro Commercial Components) | |
| Type | Diodes | Diodes | Diodes | |
| Datasheet | Open | Open | Open | |
| Lead Time | 27 weeks | 52 weeks | 22 weeks | |
| Country of Origin | CN | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8541.10.0070 | - | - | |
| Moisture Sensitivity Level | 1 (Unlimited) | - | - | |
| Speed | Small Signal =< 200mA (Io), Any Speed | - | - | |
| Technology | Schottky | - | - | |
| Mounting Type | Surface Mount | - | - | |
| Package / Case | TO-236-3, SC-59, SOT-23-3 | - | - | |
| Capacitance @ Vr, F | 5pF @ 0V, 1MHz | - | - | |
| Supplier Device Package | SOT-23-3 | - | - | |
| Reverse Recovery Time (trr) | 5 ns | - | - | |
| Current - Reverse Leakage @ Vr | 200 nA @ 30 V | - | - |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
| BAS70-05Diodes Incorporated | Discontinued | Obsolete | 8Alternatives availableSee Alternatives |
| BAS28Nexperia | Non-stock | Active | 2Alternatives availableSee Alternatives |
 BAS16onsemi | In stock | Obsolete | 5Alternatives availableSee Alternatives |
 BAS516Diodes Incorporated | Non-stock | Last time buy | 5Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The Diodes Incorporated BAS40 is marked obsolete, so the manufacturer has discontinued it and any remaining supply is limited to distributor stock. The qualified second sources on this page are active parts you can design in today.
The closest qualified second sources for the Diodes Incorporated BAS40 are the BAS40LT1G (onsemi) and the BAS40-TP (MCC (Micro Commercial Components)), out of 4 matched alternatives in total. Each is compared against the original on fit, form and function in the table above.
Not always. The alternatives to the BAS40 are matched on function but can differ in package, pinout or a key parameter, so review the fit/form/function notes in the table and the datasheet before designing one in.
The BAS40 (Diodes Incorporated) is a part in the Diodes category. This page lists qualified, cross-referenced replacements for it with a side-by-side comparison.
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