Alternatives to onsemi PZT3904
onsemi PZT3904 and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 PZT3904onsemi | PZT3904T1Gonsemi | SPZT3904T1Gonsemi | +2more | |
|---|---|---|---|---|
| FFF Compatibility | Same SOT-223 package with identical pinout (Pin 1: Base, Pins 2 & 4: Collector, Pin 3: Emitter).Standard SOT-223 package outline matching the original physical dimensions.Identical electrical characteristics (NPN, 40 V, 200 mA, 300 MHz) with an upgraded 1.5 W power rating. | Same SOT-223 package with identical pinout (Pin 1: Base, Pins 2 & 4: Collector, Pin 3: Emitter).Standard SOT-223 package outline matching the original physical dimensions.Matches all electrical parameters of the original NPN transistor, with added automotive qualification. | ||
 AI Summary | PZT3904 by onsemi: Bipolar (BJT) Transistor NPN 40 V 200 mA 300MHz 1 W Surface Mount SOT-223-4. | The PZT3904T1G is onsemi's official direct active replacement for the obsolete PZT3904. It offers full pinout and electrical compatibility with an enhanced maximum power dissipation rating of 1.5 W.
| The SPZT3904T1G is the automotive-qualified (AEC-Q101) equivalent of the direct active replacement. It provides PPAP support and enhanced reliability, making it ideal for automotive or harsh environment designs.
| |
| 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 200 mA 300MHz 1 W Surface Mount SOT-223-4 | Bipolar (BJT) Transistor NPN 40 V 200 mA 300MHz 1.5 W Surface Mount SOT-223 (TO-261) | Bipolar (BJT) Transistor NPN 40 V 200 mA 300MHz 1.5 W Surface Mount SOT-223 (TO-261) | |
| Manufacturer | onsemi | onsemi | onsemi | |
| Type | Transistors | Transistors | Transistors | |
| Datasheet | Open | Open | Open | |
| Lead Time | 15 weeks | 52 weeks | 52 weeks | |
| Country of Origin | TW | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8541.29.0065 | - | - | |
| Moisture Sensitivity Level | 1 (Unlimited) | - | - | |
| Power - Max | 1 W | - | - | |
| Mounting Type | Surface Mount | - | - | |
| Package / Case | TO-261-4, TO-261AA | - | - | |
| Transistor Type | NPN | - | - | |
| Operating Temperature | -55°C ~ 150°C (TJ) | - | - | |
| Frequency - Transition | 300MHz | - | - | |
| Supplier Device Package | SOT-223-4 | - | - | |
| Vce Saturation (Max) @ Ib, Ic | 300mV @ 5mA, 50mA | - | - |
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Frequently asked questions
Yes. The onsemi PZT3904 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 PZT3904 are the PZT3904T1G (onsemi) and the SPZT3904T1G (onsemi), 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 PZT3904 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 PZT3904 (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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