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MPSA92G

MPSA92G Description

The MPSA92G from onsemi is a high-voltage PNP bipolar junction transistor (BJT) designed for demanding switching and amplification applications. With a collector-emitter breakdown voltage (V_CEO) of 300V and a maximum collector current (I_C) of 500mA, it is well-suited for high-voltage circuits requiring moderate current handling. The transistor features a transition frequency (f_T) of 50MHz, ensuring reliable performance in medium-frequency applications. Its low collector cutoff current (I_CBO) of 250nA and DC current gain (h_FE) of 25 @ 30mA, 10V provide stable operation in precision circuits. Packaged in a TO-92 through-hole format, the MPSA92G is ideal for prototyping and industrial designs.

MPSA92G Features

• High Voltage Capability: 300V V_CEO makes it suitable for power supply and voltage regulation circuits.
• Moderate Current Handling: 500mA I_C supports a wide range of switching and amplification tasks.
• Low Saturation Voltage: 500mV @ 2mA, 20mA ensures efficient switching with minimal power loss.
• Stable Gain Characteristics: h_FE of 25 @ 30mA, 10V provides consistent performance in linear applications.
• Low Leakage Current: 250nA I_CBO enhances reliability in high-impedance circuits.
• Wide Operating Frequency: 50MHz f_T enables use in RF and signal processing stages.

MPSA92G Applications

The MPSA92G excels in:

• High-voltage power supplies (e.g., flyback converters, voltage multipliers).
• Audio amplifiers requiring PNP transistors for complementary symmetry stages.
• Switching regulators and relay drivers due to its low saturation voltage.
• Industrial control systems where high-voltage isolation is critical.
• Signal amplification in test equipment and instrumentation.

Conclusion of MPSA92G

The MPSA92G is a robust PNP BJT offering a balance of high voltage tolerance, moderate current capacity, and stable gain, making it a versatile choice for power and signal applications. While marked as obsolete, its TO-92 package and reliable performance ensure continued use in legacy designs and repairs. Engineers favor it for its low leakage, efficient switching, and cost-effectiveness in high-voltage environments. For applications demanding 300V PNP transistors, the MPSA92G remains a dependable solution.