Alternatives to Diodes Incorporated BSS138TA
Diodes Incorporated BSS138TA and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 BSS138TADiodes Incorporated |  BSS138-7-FDiodes Incorporated |  BSS138onsemi | +3more | |
|---|---|---|---|---|
| FFF Compatibility | Same SOT-23-3 package with identical pinout (1: Gate, 2: Source, 3: Drain).Identical SOT-23 physical dimensions and footprint.Matches or exceeds all electrical characteristics including Vdss, Id, and RDS(on). | Same SOT-23-3 package and standard pinout.Identical SOT-23 physical dimensions.Meets or exceeds all performance specs with 50V Vdss and 220mA continuous current. | ||
 AI Summary | BSS138TA by Diodes Incorporated: N-Channel 50 V 200mA (Ta) 300mW (Ta) Surface Mount SOT-23-3. | This is the recommended direct manufacturer replacement for the obsolete BSS138TA. It offers identical specifications and package footprint with active lifecycle support.
| This widely-used industry standard from onsemi is an active, highly reliable drop-in replacement that slightly improves continuous current handling to 220mA.
| |
| Lifecycle Status | NRND | Active | Active | |
| Market Availability | In stock | In stock | In stock | |
| REACH | REACH | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
| Description | N-Channel 50 V 200mA (Ta) 300mW (Ta) Surface Mount SOT-23-3 | N-Channel 50 V 200mA (Ta) 300mW (Ta) Surface Mount SOT-23-3 | N-Channel 50 V 220mA (Tj) 430mW Surface Mount SOT-23 | |
| Manufacturer | Diodes Incorporated | Diodes Incorporated | onsemi | |
| Type | Transistors | Transistors | Transistors | |
| Datasheet | Open | Open | Open | |
| Lead Time | 42 weeks | 40 weeks | 16 weeks | |
| Country of Origin | CN | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8541.21.0095 | - | - | |
| Moisture Sensitivity Level | 1 (Unlimited) | - | - | |
| FET Type | N-Channel | - | - | |
| Vgs (Max) | ±20V | - | - | |
| Technology | MOSFET (Metal Oxide) | - | - | |
| Mounting Type | Surface Mount | - | - | |
| Package / Case | TO-236-3, SC-59, SOT-23-3 | - | - | |
| Vgs(th) (Max) @ Id | 1.5V @ 250µA | - | - | |
| Operating Temperature | -55°C ~ 150°C (TJ) | - | - | |
| Rds On (Max) @ Id, Vgs | 3.5Ohm @ 220mA, 10V | - | - |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 BSS138onsemi | In stock | Active | 5Alternatives availableSee Alternatives |
 BSS138LT1onsemi | Discontinued | Obsolete | 4Alternatives availableSee Alternatives |
 BSS138_NLonsemi | Discontinued | Obsolete | 5Alternatives availableSee Alternatives |
 BSS84Diodes Incorporated | Non-stock | Active | 6Alternatives availableSee Alternatives |
| BSS84_NLonsemi | Discontinued | Obsolete | 8Alternatives availableSee Alternatives |
| BSS84LT1onsemi | Discontinued | Obsolete | 5Alternatives availableSee Alternatives |
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Frequently asked questions
No. The Diodes Incorporated BSS138TA is marked not-recommended-for-new-designs (NRND): it is still supplied for existing production but the manufacturer discourages new sockets. The qualified alternatives here are better long-term choices for a new design.
The closest qualified second sources for the Diodes Incorporated BSS138TA are the BSS138-7-F (Diodes Incorporated) and the BSS138 (onsemi), out of 5 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 BSS138TA 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 BSS138TA (Diodes Incorporated) is a part in the Transistors category. This page lists qualified, cross-referenced replacements for it with a side-by-side comparison.
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