2N3501U4/TR

Single Bipolar Transistors Overview

The 2N3501U4/TR is an NPN silicon small-signal bipolar junction transistor manufactured by Microchip Technology. It features a surface-mount SMD-3 package and operates with a maximum collector-emitter voltage of 150 V and a continuous collector current of 300 mA. The device dissipates up to 1 W of power and maintains a junction temperature range from -65°C to +200°C. DC current gain (hFE) ranges from a minimum of 15 at 300 mA to a maximum of 120 at 150 mA. It complies with MIL-PRF-19500/366 standards for high-reliability applications.

Single Bipolar Transistors Feature Summary

• High-temperature operation capability suitable for extreme environments
• Radiation-hardened design for aerospace and military use
• Surface-mount configuration for automated assembly

Single Bipolar Transistors Applications

• Military communication systems
• Satellite terminal equipment
• Flight control systems

Single Bipolar Transistors Procurement Notes

Verify the specific suffix U4/TR against official Microchip documentation to confirm the reel packaging format and exact electrical tolerances. Ensure the procurement channel provides valid traceability records required for components meeting MIL-PRF-19500/366 standards. Confirm that the delivered units match the requested quality level and do not contain unauthorized substitutions or generic equivalents.

Single Bipolar Transistors Selection Notes

Select this component when a radiation-tolerant NPN transistor with high thermal stability is required in a surface-mount form factor. The wide operating temperature range supports deployment in harsh industrial or aerospace conditions. Verify that the 300 mA current rating and 150 V breakdown voltage align with the circuit requirements before integration into the final design.

Single Bipolar Transistors Part Context

This part belongs to the 2N3501 family, which includes through-hole variants like the 2N3501L and other surface-mount versions such as the JANTX2N3501UB. The family shares core NPN silicon technology derived from microwave radar amplifier designs. The U4/TR designation specifically indicates the surface-mount package type and tape-and-reel shipping method used by Microchip Technology.

Single Bipolar Transistors Replacement Considerations

Direct substitutes include the 2N3501U4 and JANTX2N3501UB. Verify pinout compatibility and package dimensions before swapping. Alternative packages may require PCB layout modifications.