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MPSA42 PDF

MPSA High Voltage Transistor. Page 1. 11/05/08 V TO Plastic Package . Dimensions. Minimum. Maximum. A. B. C. D. The CENTRAL SEMICONDUCTOR MPSA42 and. MPSA43 are silicon NPN transistors designed for high voltage applications. MARKING: FULL PART NUMBER. Bipolar (BJT) Transistor NPN V mA 50MHz mW Through Hole TO 3.

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Also note that the collector current of the IC is mA 0.

Also note that the operating current of the motor is just 0. Top menu About Us Contact. When a transistor is used as a switch it is operated in the Saturation and Cut-Off Region as explained above. mps42

It has a Base-Emitter voltage of 6V hence it can be controlled easily using microcontrollers or other digital electronics. As discussed a transistor will act as an Open switch during Forward Bias and as a closed switch during Reverse Bias, this biasing can be achieved by supplying the required amount of current to the base pin.

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When mpsw42 transistor is fully biased then it can allow a maximum of mA to flow across the collector and emitter. It has a gain m;sa42 of 30; this value determines the amplification capacity of the transistor normally MPSA42 will not be used for amplification due to its low gain value.

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If 0V is supplied to base pin no current flows to base and thus the transistor is reversed biased making the motor to stop.

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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 The MPSA42 can turn on or turn off high voltage loads upto V hence they are commonly used for heavy loads or loads that have high peak voltage. The maximum amount of current that could flow through the Collector pin is mA, hence we cannot drive loads that consume more than mA using this transistor.

Next Article Timer IC. If you kpsa42 designing a PCB or Perf board with this component then the following picture from the MPSA42 transistor Datasheet will be useful to know its package type and dimensions.

The value of this resistor RB can be calculated using below formulae.

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MPSA42 Pinout, Features, Equivalent & Datasheet

So if you are looking for an NPN transistor that could switch high voltages with a decent current flow then the MPSA42 mps4a2 might be the right choice. MPSA42 transistor is normally used to switch high voltage loads or loads that have high peak voltages. Skip to main content.

MPSA42 is a NPN transistor hence the collector and emitter will be left open Reverse biased when the base pin is held mpsw42 ground and will be closed Forward biased when a signal is provided to base pin. When base current is removed the transistor becomes fully off, this stage is called as the Cut-off Region.

MPSA42 NPN High-Voltage Transistor

Anything more than 5mA will kill the Transistor; hence a resistor is always added in series with base pin. As mentioned the biasing current should maximum of 5mA. To bias a transistor we have to supply current to base pin, this current IB should be limited to 5mA.

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