MJL21194G

Single Bipolar Transistors Overview

The MJL21194G is a high-power NPN silicon transistor manufactured by onsemi, designed for demanding linear and audio output applications. It features a TO-264 (TO-204) through-hole package with three pins. Key electrical specifications include a maximum collector-emitter voltage (VCEO) of 250 V and a collector-base voltage (VCBO) of 400 V. The device supports a continuous DC collector current (IC) of 16 A and a total power dissipation (Pd) of 200 W. It exhibits a minimum DC current gain (hFE) of 8 and a transition frequency (fT) of 4 MHz. Operating temperatures range from -65°C to 200°C.

Single Bipolar Transistors Feature Summary

• Utilizes perforated emitter technology specifically engineered for high-power audio output and linear applications.
• Features an extremely wide Safe Operating Area (SOA), providing robust stability against thermal runaway in Class AB amplifier designs.
• Offers industrial-grade reliability suitable for professional audio equipment requiring continuous full-load operation.

Single Bipolar Transistors Applications

• High-power audio output stages
• Linear amplifier circuits
• Professional studio monitoring systems

Single Bipolar Transistors Procurement Notes

Verify the specific datasheet revision when sourcing, as historical Motorola documentation may differ slightly from current onsemi releases. Confirm that the TO-264 package dimensions match your heatsinking requirements. Ensure the component is sourced from authorized distributors to guarantee authenticity, as this legacy part remains widely used in high-end audio reconstruction projects.

Single Bipolar Transistors Selection Notes

Select the MJL21194G when designing amplifiers that prioritize thermal stability and ruggedness over ultra-high-speed switching characteristics. Its lower transition frequency compared to Hi-Fi focused alternatives makes it ideal for robust power delivery rather than extreme transient response. Pair with its complementary PNP counterpart, the MJL21193G, for balanced push-pull configurations.

Single Bipolar Transistors Part Context

This component belongs to the MJL series, originally developed by Motorola Semiconductor before becoming part of onsemi. The series was established to provide industrial-grade replacements for popular Japanese audio transistors. The MJL21194G serves as the NPN half of a matched pair, forming a core building block for high-fidelity power amplifiers produced by major brands like Crown and QSC.

Single Bipolar Transistors Replacement Considerations

The MJW21194 is a direct functional replacement housed in a TO-247 package; verify pinout compatibility and mounting hole spacing differences. For higher speed requirements, the MJL3281A offers similar current handling but with increased bandwidth.