Alternatives to onsemi 2N3906
onsemi 2N3906 and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 2N3906onsemi | 2N3906BUonsemi |  2N3906TARonsemi | +4more | |
|---|---|---|---|---|
| FFF Compatibility | Identical TO-92 physical package and same E-B-C pin assignment (Pin 1: Emitter, Pin 2: Base, Pin 3: Collector).Standard TO-92-3 through-hole form factor with bulk lead-forming.Exact same electrical characteristics from the same manufacturer. | Uses standard TO-92 geometry and the same E-B-C pinout (1-Emitter, 2-Base, 3-Collector).Package features tape-and-reel formed/bent leads instead of straight bulk leads.Identical internal transistor specifications. | ||
 AI Summary | 2N3906 by onsemi: Bipolar (BJT) Transistor PNP 40 V 200 mA 250MHz 625 mW Through Hole TO-92 (TO-226). | The 2N3906BU is an active, bulk-packaged variant of the 2N3906 from the original manufacturer (onsemi), serving as the most direct drop-in replacement. It offers identical electrical specifications and physical form factor.
| The 2N3906TAR provides the exact same transistor performance in a Tape & Reel / Ammo Box format with pre-formed leads. This is ideal if the board assembly utilizes tape-fed insertion machines.
| |
| Lifecycle Status | Obsolete | Active | Active | |
| Market Availability | In stock | In stock | In stock | |
| REACH | REACH | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
| Description | Bipolar (BJT) Transistor PNP 40 V 200 mA 250MHz 625 mW Through Hole TO-92 (TO-226) | Bipolar (BJT) Transistor PNP 40 V 200 mA 250MHz 625 mW Through Hole TO-92-3 | Bipolar (BJT) Transistor PNP 40 V 200 mA 250MHz 625 mW Through Hole TO-92-3 | |
| Manufacturer | onsemi | onsemi | onsemi | |
| Type | Transistors | Transistors | Transistors | |
| Datasheet | Open | Open | Open | |
| Lead Time | 15 weeks | 43 weeks | 10 weeks | |
| Country of Origin | CN, MY, JP | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | - | - | - | |
| Moisture Sensitivity Level | - | - | - | |
| Power - Max | 625 mW | - | - | |
| Mounting Type | Through Hole | - | - | |
| Package / Case | TO-226-3, TO-92-3 Long Body | - | - | |
| Transistor Type | PNP | - | - | |
| Operating Temperature | -55°C ~ 150°C (TJ) | - | - |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 2N3904onsemi | Non-stock | Obsolete | 5Alternatives availableSee Alternatives |
 2N7002STMicroelectronics | In stock | Obsolete | 4Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The onsemi 2N3906 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 2N3906 are the 2N3906BU (onsemi) and the 2N3906TAR (onsemi), out of 6 matched alternatives in total. Each is compared against the original on fit, form and function in the table above.
Partly. Some alternatives to the 2N3906 are full fit-, form- and function-compatible drop-ins, while others match on function but differ in package or a key parameter. Check the fit/form/function notes in the table and the datasheet for your application before swapping.
The 2N3906 (onsemi) 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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