2SD1805G-E

Single Bipolar Transistors Overview

The 2SD1805G-E is a silicon NPN bipolar junction transistor manufactured by onsemi. It is housed in a TO-251-3 (SOT-669) surface-mount package designed for through-hole compatibility. The device supports a continuous collector current of 5 A and operates with a maximum collector-emitter voltage of 20 V. Key electrical specifications include a minimum DC current gain (hFE) of 120, an emitter-base breakdown voltage of 6 V, and a power dissipation rating of 1 W.

Single Bipolar Transistors Feature Summary

• High current handling capability suitable for power switching applications
• Robust thermal performance within the TO-251-3 surface-mount footprint
• High DC current gain ensuring efficient drive requirements

Single Bipolar Transistors Applications

• General-purpose power switching circuits
• Low-voltage amplifier stages
• Driver circuits for loads requiring up to 5 A

Single Bipolar Transistors Procurement Notes

Verify component authenticity upon receipt, as this part is listed as End-of-Life (EOL). Check manufacturing date codes against the discontinuance notification to ensure inventory freshness. Confirm RoHS compliance status via the official datasheet before integration into new designs.

Single Bipolar Transistors Selection Notes

Select this component when a high-current NPN transistor is required in a compact SOT-669 package. Ensure the application voltage does not exceed 20 V and that thermal management can handle 1 W dissipation. Consider the EOL status and limited availability when planning long-term production runs.

Single Bipolar Transistors Part Context

This device belongs to the 2SD1805 series of NPN transistors from onsemi. It serves as a discrete semiconductor solution for medium-power applications. The TO-251-3 package provides a balance between thermal efficiency and board space savings compared to traditional through-hole packages.

Single Bipolar Transistors Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the End-of-Life status, alternative sourcing requires careful evaluation of pinout and electrical parameter compatibility.