MMBT3904TT1H

Single Bipolar Transistors Overview

The MMBT3904TT1H is an NPN bipolar junction transistor manufactured by onsemi, designed for general-purpose amplification and switching applications. It is housed in a compact SOT-416 (SC-75-3) surface-mount package with three pins. The device supports a maximum continuous collector current of 200 mA and withstands a collector-emitter voltage of 40 V. Key electrical characteristics include a collector-base voltage rating of 60 V, an emitter-base voltage limit of 6 V, and a minimum DC current gain (hFE) of 40. The component features a transition frequency (fT) of 300 MHz and a power dissipation capacity of 225 mW. It operates within a temperature range of -55°C to +150°C.

Single Bipolar Transistors Feature Summary

• Compact SOT-416 surface-mount packaging suitable for space-constrained designs
• High-speed performance with a 300 MHz transition frequency
• Automotive-grade reliability compliant with AEC-Q101 standards
• General-purpose NPN configuration for versatile signal processing

Single Bipolar Transistors Applications

• Industrial control systems
• Power management circuits
• Automotive electronics

Single Bipolar Transistors Procurement Notes

Verify the specific suffix 'H' against official manufacturer documentation to confirm its distinction from the standard 'G' variant, as suffixes often denote tape-and-reel specifications or regional compliance rather than functional changes. Ensure the selected part number matches the exact ordering requirements for your Bill of Materials. Cross-reference the datasheet revision date to guarantee alignment with current manufacturing specifications and quality certifications.

Single Bipolar Transistors Selection Notes

Select this component when a small-form-factor NPN transistor is required for high-frequency signal handling. The 300 MHz fT makes it suitable for applications exceeding standard audio frequencies. Consider the 225 mW power dissipation limit relative to thermal constraints in dense PCB layouts. Verify that the 40 V collector-emitter voltage rating aligns with the circuit's operating conditions to prevent breakdown during transient events.

Single Bipolar Transistors Part Context

This device belongs to the MMBT3904T series of small-signal transistors. It shares core electrical parameters with other variants like the MMBT3904LT1G but utilizes a distinct SC-75-3 package instead of the larger SOT-23. This packaging difference impacts thermal performance and physical footprint, making it ideal for applications where board space is limited compared to standard SOT-23 implementations.

Single Bipolar Transistors Replacement Considerations

The MMBT3904TT1G is a confirmed substitute with identical electrical ratings and AEC-Q101 compliance. Other MMBT3904 variants may serve as alternatives if package compatibility is not strictly enforced.