MMBT3904W_R1_00001

Single Bipolar Transistors Overview

The MMBT3904W_R1_00001 is an NPN general-purpose switching transistor manufactured by Panjit International Inc. It utilizes a planar epitaxial silicon design housed in a SOT-323 plastic case. The device supports a collector-emitter voltage of 40V and a continuous collector current of 200mA, with a maximum power dissipation of 150mW at ambient temperatures ranging from -55°C to +150°C. Key electrical characteristics include a DC current gain (hFE) ranging from 40 to 300 depending on the collector current, and a collector-emitter saturation voltage of up to 0.3V under specified test conditions.

Single Bipolar Transistors Feature Summary

• NPN epitaxial silicon planar design for reliable switching performance
• Lead-free construction compliant with EU RoHS 2.0 standards
• Green molding compound meeting IEC 61249 environmental requirements

Single Bipolar Transistors Applications

• General purpose switching circuits
• Low voltage logic level interfacing
• Signal amplification stages

Single Bipolar Transistors Procurement Notes

Verify the specific ordering suffix against official Panjit documentation to confirm packaging configuration. Confirm that the component meets required environmental compliance standards for the target application. Ensure proper handling procedures are followed during surface mount assembly to maintain device integrity.

Single Bipolar Transistors Selection Notes

Select this component for applications requiring compact NPN switching capabilities within limited board space. Evaluate thermal resistance and power dissipation limits relative to the operating environment. Consider the specific hFE ranges and saturation voltages to ensure compatibility with the driving circuit requirements.

Single Bipolar Transistors Part Context

This part belongs to the MMBT3904W series of bipolar junction transistors produced by Panjit. It serves as a standard discrete semiconductor solution for consumer electronics and industrial control systems where small form factor and cost-effective switching are prioritized over high-power handling.

Single Bipolar Transistors Replacement Considerations

Cross-reference with other manufacturers' MMBT3904 equivalents or Panjit's MMBT3904L variant if different packaging is required. Verify pinout compatibility and electrical parameter overlaps before substitution.