Alternatives to onsemi KST2222AMTF_NL
onsemi KST2222AMTF_NL and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
Equivalent and substitute parts for onsemi KST2222AMTF_NL
| KST2222AMTF_NLonsemi |  MMBT2222A-TPMCC (Micro Commercial Components) |  MMBT2222A-7-FDiodes Incorporated | +2more | |
|---|---|---|---|---|
| FFF Compatibility | Both components use the standard SOT-23 package with identical Pin 1 (Base), Pin 2 (Emitter), Pin 3 (Collector) pinouts.The physical dimensions and surface mount footprints match exactly.Key electrical characteristics (V_CEO = 40 V, I_C = 600 mA, P_D = 350 mW, f_T = 300 MHz) meet or exceed the original part's specifications. | Standard SOT-23 pin mapping of Pin 1 (Base), Pin 2 (Emitter), and Pin 3 (Collector) matches the original part.Uses the standard SOT-23 footprint with matching mechanical dimensions.Primary parameters (V_CEO = 40 V, I_C = 600 mA) are identical, and the 310 mW power rating is virtually identical in standard designs. | ||
 AI Summary | KST2222AMTF_NL by onsemi: Bipolar Transistors - BJT NPN/40V/0.6A/100-300. | This is a high-confidence drop-in replacement with an identical 350 mW maximum power dissipation and 300 MHz transition frequency. It is actively manufactured and highly cost-effective.
| A highly reliable drop-in replacement from a top-tier manufacturer. The power dissipation of 310 mW is slightly lower than the original's 350 mW, but this minor difference is negligible in nearly all standard circuit layouts.
| |
| Lifecycle Status | Obsolete | Active | Active | |
| Market Availability | Discontinued | In stock | In stock | |
| REACH | Unknown | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 MMBT2222ALT1onsemi | Discontinued | Obsolete | 4Alternatives availableSee Alternatives |
 MMBT2222Aonsemi | In stock | Obsolete | 4Alternatives availableSee Alternatives |
 PN2222ASTMicroelectronics | Discontinued | Obsolete | 3Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The onsemi KST2222AMTF_NL 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 KST2222AMTF_NL are the MMBT2222A-TP (MCC (Micro Commercial Components)) and the MMBT2222A-7-F (Diodes Incorporated), out of 4 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 KST2222AMTF_NL 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 KST2222AMTF_NL (onsemi) is a part in the Bipolar Transistors - BJT category. This page lists qualified, cross-referenced replacements for it with a side-by-side comparison.
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