MMBT619

Single Bipolar Transistors Overview

The MMBT619 is an NPN silicon transistor in a SOT-23 package. It features a collector-emitter voltage of 50 V and continuous collector current up to 2 A. Power dissipation reaches 0.625 W at 25 °C. DC current gain ranges from 40 to 300 depending on collector current. Saturation voltage is as low as 20 mV at 0.1 A. Transition frequency is 100 MHz. Operating temperature spans -55 °C to +150 °C.

Single Bipolar Transistors Feature Summary

• Low saturation voltage for efficient switching
• High DC current gain across multiple operating points
• Robust thermal performance with high junction temperature rating

Single Bipolar Transistors Applications

• General purpose switching circuits
• Driver stages requiring low saturation loss
• Amplifier applications utilizing high current gain

Single Bipolar Transistors Procurement Notes

Verify the manufacturer designation, as Good-Ark Semiconductor produces this component while other vendors use similar part numbers. Confirm RoHS compliance status and specific reel quantities during ordering. Ensure the SOT-23 package dimensions match your PCB footprint requirements before finalizing procurement.

Single Bipolar Transistors Selection Notes

Select this component when low collector-emitter saturation voltage is critical for power efficiency. The high current capability supports loads up to 2 A. Verify that the required transition frequency meets circuit bandwidth needs, as it is rated at 100 MHz. Consider thermal resistance limits for high ambient temperature environments.

Single Bipolar Transistors Part Context

This NPN transistor belongs to the general-purpose switching category. It utilizes silicon technology for reliable operation. The SOT-23 surface-mount package allows for compact board designs. It serves as a discrete solution for controlling higher currents with small base drive signals.

Single Bipolar Transistors Replacement Considerations

FMMT619TC offers comparable specifications in a similar package. ZUMT619TA provides similar electrical characteristics but uses a different SOT-323 housing. Verify pinout compatibility and exact parameter tolerances before substituting these alternatives.