Alternatives to STMicroelectronics PN2222A
STMicroelectronics PN2222A and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 PN2222ASTMicroelectronics | KSP2222ABUonsemi | PN2222ABUonsemi | +1more | |
|---|---|---|---|---|
| FFF Compatibility | Both devices share the standard TO-92-3 package with the exact same Emitter-Base-Collector (EBC) pinout, ensuring direct drop-in board mounting.The physical dimensions and package style (TO-92 through-hole) are fully identical.Meets or exceeds all critical electrical specifications (40 V Breakdown, 600 mA Collector Current, 625 mW Power Rating). | Matches the same TO-92-3 EBC pin layout (1: Emitter, 2: Base, 3: Collector) as the queried part.Matches the original TO-92 (TO-226-3) packaging exactly with straight leads.Fully compatible and offers a higher maximum collector current of 1 A compared to the original 600 mA, improving application safety margins. | ||
 AI Summary | PN2222A by STMicroelectronics: Bipolar (BJT) Transistor NPN 40 V 600 mA 270MHz 500 mW Through Hole TO-92-3. | The KSP2222ABU is the manufacturer-recommended direct replacement for the obsolete STMicroelectronics PN2222A. It features completely compatible electrical characteristics and identical physical packaging, making it an ideal drop-in option.
| This is onsemi's direct standard PN2222A in a bulk TO-92 package with straight leads. It provides excellent drop-in compatibility with an upgraded 1 A collector current rating.
| |
| Lifecycle Status | Obsolete | Active | Active | |
| Market Availability | Discontinued | In stock | In stock | |
| REACH | REACH | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
| Description | Bipolar (BJT) Transistor NPN 40 V 600 mA 270MHz 500 mW Through Hole TO-92-3 | Bipolar (BJT) Transistor NPN 40 V 600 mA 300MHz 625 mW Through Hole TO-92-3 | Bipolar (BJT) Transistor NPN 40 V 1 A 300MHz 625 mW Through Hole TO-92-3 | |
| Manufacturer | STMicroelectronics | onsemi | onsemi | |
| Type | Transistors | Transistors | Transistors | |
| Datasheet | Open | Open | Open | |
| Lead Time | Unknown | 14 weeks | 14 weeks | |
| Country of Origin | - | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8541.21.0075 | - | - | |
| Moisture Sensitivity Level | 1 (Unlimited) | - | - | |
| Power - Max | 500 mW | - | - | |
| Mounting Type | Through Hole | - | - | |
| Package / Case | TO-226-3, TO-92-3 (TO-226AA) | - | - | |
| Transistor Type | NPN | - | - | |
| Operating Temperature | 150°C (TJ) | - | - | |
| Frequency - Transition | 270MHz | - | - | |
| Supplier Device Package | TO-92-3 | - | - | |
| Vce Saturation (Max) @ Ib, Ic | 1V @ 50mA, 500mA | - | - |
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Frequently asked questions
Yes. The STMicroelectronics PN2222A 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 STMicroelectronics PN2222A are the KSP2222ABU (onsemi) and the PN2222ABU (onsemi), out of 3 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 PN2222A 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 PN2222A (STMicroelectronics) 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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