Alternatives to onsemi BAT54A
onsemi BAT54A and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 BAT54Aonsemi |  BAT54ALT1Gonsemi |  BAT54A-7-FDiodes Incorporated | +4more | |
|---|---|---|---|---|
| FFF Compatibility | The pinout assignments (Pin 1: Cathode 1, Pin 2: Cathode 2, Pin 3: Common Anode) and physical SOT-23-3 footprint are identical.Standard SOT-23 package dimensions and mounting style match the original part exactly.Matches all key electrical specifications including 30 V DC reverse voltage, 200 mA forward current, and 5 ns reverse recovery time. | Identical SOT-23 common anode pinout and footprint.Matches standard SOT-23 physical specifications.Perfect electrical match for the 30 V reverse voltage, 200 mA forward current, and Schottky technology characteristics. | ||
 AI Summary | BAT54A by onsemi: Diode Array 1 Pair Common Anode 30 V 200mA Surface Mount TO-236-3, SC-59, SOT-23-3. | This is a high-reliability, active drop-in replacement from a top-tier manufacturer. It perfectly matches the physical, thermal, and electrical characteristics of the obsolete Good-Ark part.
| An active, industry-standard direct replacement from Diodes Incorporated that replicates all specifications and performance profiles of the original.
| |
| Lifecycle Status | Obsolete | Active | Active | |
| Market Availability | In stock | In stock | In stock | |
| REACH | REACH | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
| Description | Diode Array 1 Pair Common Anode 30 V 200mA Surface Mount TO-236-3, SC-59, SOT-23-3 | Diode Array 1 Pair Common Anode 30 V 200mA (DC) Surface Mount TO-236-3, SC-59, SOT-23-3 | Diode Array 1 Pair Common Anode 30 V 200mA (DC) Surface Mount TO-236-3, SC-59, SOT-23-3 | |
| Manufacturer | onsemi | onsemi | Diodes Incorporated | |
| Type | Diodes | Diodes | Diodes | |
| Datasheet | Open | Open | Open | |
| Lead Time | 16 weeks | 52 weeks | 44 weeks | |
| Country of Origin | JP | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8541.10.0080 | - | - | |
| 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 | - | - | |
| Diode Configuration | 1 Pair Common Anode | - | - |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 BAT54onsemi | In stock | Active | 7Alternatives availableSee Alternatives |
 BAT54Sonsemi | In stock | Obsolete | 6Alternatives availableSee Alternatives |
| BAT54Consemi | In stock | Obsolete | 6Alternatives availableSee Alternatives |
 BAT42WTaiwan Semiconductor | Non-stock | NRND | 5Alternatives availableSee Alternatives |
 BAV99TADiodes Incorporated | Discontinued | Obsolete | 6Alternatives availableSee Alternatives |
 BAS516Diodes Incorporated | Non-stock | Last time buy | 5Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The onsemi BAT54A 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 onsemi BAT54A are the BAT54ALT1G (onsemi) and the BAT54A-7-F (Diodes Incorporated), out of 6 matched alternatives in total. Each is compared against the original on fit, form and function in the table above.
Yes. The leading alternatives to the BAT54A are fit-, form- and function-compatible — the same package and pinout with matching key electrical specifications — so they drop in without PCB changes. Always confirm the parameters critical to your design against the alternative's datasheet before committing.
The BAT54A (onsemi) 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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