The SF121 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the SF121 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.
The SF121 transistor symbol shows an arrow from the base into the emitter. This means that the current flows from collector terminal to emitter terminal.
Circuit diagram symbol of the SF121 transistor as follows.
| Transistor Code | SF121 | |
|---|---|---|
| Transistor Type | BJT | |
| Transistor Polarity | NPN | |
| Transistor Material | Silicon(SI) | |
| Collector Power Dissipation (Maximum) | PC | 0.6W |
| Collector-Emitter Voltage (Maximum) | VCE | 20V |
| Collector Current (Maximum) | IC | 0.1A |
| Forward Current Transfer Ratio (hFE Value) | 35 | |
UXPython is not the creator or an official representative of the SF121 NPN transistor. You can download the official SF121 NPN transistor datasheet to get more infromation about this transistor.
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