The MPSA42 is a high voltage NPN transistor. A transistor can normally be used as a switch or amplifier, but this transistor is commonly is used only for switching purpose since it has a low gain value of 30 only. It can switch on or off the loads with voltages upto 300V. When transistor is fully biased which you can do with base emitter voltage of about 6V, it can carry a collector current upto 500mA. So if you are looking for an NPN transistor which can switch high voltages with decent enough currents then it is the product for you.
MPSA42 Transistor Specifications
- High Voltage NPN Transistor
- DC Current Gain (hFE): 40
- Continuous Collector current: 500mA
- Base- Emitter Voltage: 6V
- Collector-Emitter Voltage: 300V
- Collector-Base Voltage: 300V
- Available in To-92 Package
1× MPSA42 Transistor
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Really prompt and excellent service.... transistors are great.. checked that DC voltage gain is up to the mark.