2SD1802T-E

Single Bipolar Transistors Overview

The onsemi 2SD1802T-E is a single NPN silicon bipolar junction transistor (BJT) housed in a TO-251-3 (TP) surface-mount package. It supports a maximum collector current of 5 A and a collector-emitter voltage (VCEO) of 50 V. Key electrical parameters include a collector-base voltage (VCBO) of 60 V, an emitter-base voltage (VEBO) of 6 V, and a transition frequency (fT) of 150 MHz. The device features a low collector-emitter saturation voltage of 190 mV and a power dissipation rating of 1 W. It operates at junction temperatures up to +150°C.

Single Bipolar Transistors Feature Summary

• High current handling capability with a 5 A continuous collector current rating
• Fast switching performance characterized by a 150 MHz transition frequency
• Low saturation voltage for efficient power switching applications

Single Bipolar Transistors Applications

• Relay drivers
• High-speed inverters
• General high-current switching circuits

Single Bipolar Transistors Procurement Notes

Verify the specific manufacturer origin, as this component has been produced by both onsemi and Fairchild Semiconductor. Confirm the exact package variant and lead configuration against the design requirements. Check for end-of-life status or obsolescence notices from the current supplier. Ensure compliance with RoHS and REACH regulations relevant to the target market. Validate that the sourcing channel provides authentic components with traceable documentation.

Single Bipolar Transistors Selection Notes

Select this component for applications requiring moderate voltage blocking and high current switching in a compact surface-mount form factor. Compare the 1 W power dissipation limit against thermal management capabilities in the final assembly. Consider the 150 MHz bandwidth for signal integrity in high-speed digital or analog switching environments. Evaluate the saturation voltage characteristics for efficiency requirements in low-voltage logic interfaces.

Single Bipolar Transistors Part Context

This part belongs to the 2SD1802 series of NPN transistors designed for general-purpose high-current switching. It is often paired with complementary PNP devices like the 2SB1203 for push-pull configurations. The TP package offers a slim profile suitable for space-constrained PCB layouts. The component is widely used in industrial and consumer electronics where reliable high-current control is necessary.

Single Bipolar Transistors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source data.