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MPSA18 APM TIN/LEAD is listed in the Single Bipolar Transistors range at ChipApex. The manufacturer field lists Central Semiconductor Corp. Its product description is 45V 200MA 625MW TH TRANSISTOR-SM. Review the specifications below when checking this part for your BOM.
The MPSA18 APM TIN/LEAD is a small-signal, low-noise NPN silicon transistor manufactured by Central Semiconductor Corp. Designed for general-purpose amplifier applications, this component utilizes a through-hole TO-92-3 package configuration. It features a collector-emitter voltage rating of 45V and supports a continuous collector current of 200mA. The device offers a power dissipation capacity of 625mW and a transition frequency of 100MHz. The specific suffix indicates the use of tin/lead plating.
Verify that the specific ordering suffix matches the required lead composition for your assembly process. Confirm the package type aligns with your PCB footprint requirements. Ensure the thermal management strategy accommodates the specified power dissipation limits under maximum operating conditions. Check for any RoHS compliance documentation if lead-free alternatives are mandated by project specifications.
Select this component when low noise performance is critical for the input stage of an amplifier circuit. Consider the 45V voltage rating to ensure adequate headroom for the intended supply rails. Evaluate the 200mA current limit against the load requirements to prevent thermal overstress. Compare the transition frequency against the signal bandwidth needs to guarantee sufficient gain at the target operating frequencies.
This part belongs to the MPSA series of bipolar junction transistors from Central Semiconductor. The MPSA18 specifically targets applications requiring high linearity and low noise characteristics compared to standard general-purpose transistors. It serves as a specialized alternative within the broader family of NPN silicon devices offered by the manufacturer for precision analog designs.
Public confirmed substitute part numbers are not available in the provided source material.
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