Alternatives to onsemi BAT54SWT1
onsemi BAT54SWT1 and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 BAT54SWT1onsemi |  BAT54SWT1Gonsemi |  BAT54SW-7-FDiodes Incorporated | +4more | |
|---|---|---|---|---|
| FFF Compatibility | The part is the direct lead-free successor from the same manufacturer, ensuring identical SOT-323 footprint and standard style 9 series pinout assignments.Housed in the identical SOT-323 (SC-70-3) package with identical physical dimensions and mounting style.Identical electrical specifications including 30 V breakdown voltage, 200 mA average forward current, and 5 ns reverse recovery time. | Footprint matches the SOT-323 layout and pinout matches the original series configuration exactly.Housed in a standard SOT-323 package with identical physical dimensions.Meets the primary electrical safety ceiling of 30 V and 200 mA continuous current. | ||
 AI Summary | BAT54SWT1 by onsemi: Diode Array 1 Pair Series Connection 30 V 200mA (DC) Surface Mount SC-70, SOT-323. | This is the direct, active, lead-free replacement part provided by onsemi to succeed the obsolete non-RoHS BAT54SWT1. It offers identical electrical parameters, physical footprint, and pin configurations with no design changes required.
| This is a highly popular, active second-source alternative from Diodes Incorporated. It is fully pin-compatible and matches all critical electrical ratings, with a slightly higher peak forward voltage specification at maximum current.
| |
| Lifecycle Status | Obsolete | Active | Active | |
| Market Availability | Discontinued | In stock | In stock | |
| REACH | REACH | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
| Description | Diode Array 1 Pair Series Connection 30 V 200mA (DC) Surface Mount SC-70, SOT-323 | Diode Array 1 Pair Series Connection 30 V 200mA (DC) Surface Mount SC-70, SOT-323 | Diode Array 1 Pair Series Connection 30 V 200mA (DC) Surface Mount SC-70, SOT-323 | |
| Manufacturer | onsemi | onsemi | Diodes Incorporated | |
| Type | Diodes | Diodes | Diodes | |
| Datasheet | Open | Open | Open | |
| Lead Time | 52 weeks | 51 weeks | 44 weeks | |
| Country of Origin | - | - | - | |
| 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 | SC-70, SOT-323 | - | - | |
| Diode Configuration | 1 Pair Series Connection | - | - | |
| Supplier Device Package | SC-70-3 (SOT323) | - | - | |
| Reverse Recovery Time (trr) | 5 ns | - | - | |
| Current - Reverse Leakage @ Vr | 2 µA @ 25 V | - | - |
Unlock all 6 alternatives
- Find & compare verified second sources
- Spot risk early with real-time part monitoring
- Stay compliant and production-ready
Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 BAT54LT1onsemi | Discontinued | Obsolete | 4Alternatives availableSee Alternatives |
 BAT54Sonsemi | In stock | Obsolete | 6Alternatives availableSee Alternatives |
 BAT54XV2T1onsemi | Discontinued | Obsolete | 5Alternatives availableSee Alternatives |
 BAT54onsemi | In stock | Active | 7Alternatives availableSee Alternatives |
 BAT54,215Nexperia | In stock | Active | 7Alternatives availableSee Alternatives |
| BAT54S_NLonsemi | Discontinued | Obsolete | 6Alternatives availableSee Alternatives |
You searched one part. Parter watches your whole BOM.
All your BOM, at once
Parter maps every line to live stock, lead time, lifecycle and compliance data across the entire market — not part by part.
Hear about problems before they hit production
Allocation, EOL and last-time-buy notices surface the moment they appear, not when your buyer's PO bounces.
Qualified replacements in minutes, not days
Every at-risk line gets form-fit-function matches like the ones above — deltas flagged, evidence attached. Review, push to your BOM, and Parter starts watching the new part too.
Frequently asked questions
Yes. The onsemi BAT54SWT1 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 BAT54SWT1 are the BAT54SWT1G (onsemi) and the BAT54SW-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.
Not always. The alternatives to the BAT54SWT1 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 BAT54SWT1 (onsemi) is a part in the Diodes category. This page lists qualified, cross-referenced replacements for it with a side-by-side comparison.
Schedule a demo
See Parter in action
Discover how Parter can help your hardware team:
- Streamline your hardware operations with AI
- Detect and prevent lifecycle disruptions
- Accelerate product development
- Stay compliant and production-ready