2SD1804S-E

Single Bipolar Transistors Overview

The onsemi 2SD1804S-E is an NPN epitaxial planar silicon transistor designed for high-current switching applications. It features a TO-252 (TP) package with four terminals, including an exposed collector pad for thermal management. Key electrical specifications include a maximum collector current of 8 A and a collector-emitter voltage rating of 50 V. The device exhibits a low collector-to-emitter saturation voltage of 200 mV at 4 A and offers a gain-bandwidth product of up to 150 MHz. Maximum power dissipation reaches 21 W when mounted on a heat sink.

Single Bipolar Transistors Feature Summary

• Low collector-to-emitter saturation voltage for efficient conduction
• High current handling capability suitable for demanding loads
• Fast switching time optimized for high-frequency operation
• Excellent linearity of DC current gain across operating ranges

Single Bipolar Transistors Applications

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

Single Bipolar Transistors Procurement Notes

Verify the specific suffix 'S-E' against official documentation to confirm pinout and packaging variations. Confirm RoHS compliance status through the manufacturer's latest delivery specification. Ensure sourcing channels provide valid traceability for this discontinued or legacy component series.

Single Bipolar Transistors Selection Notes

Select this component for designs requiring robust NPN switching with high current capacity. Evaluate thermal resistance requirements carefully, as the TO-252 package relies on board copper area or external heatsinks for optimal performance. Verify that the 50 V breakdown voltage aligns with the circuit's peak transient voltages.

Single Bipolar Transistors Part Context

This part belongs to the 2SD1804 family originally developed by Sanyo Electric Co., Ltd. The series includes complementary PNP counterparts like the 2SB1204. These transistors are engineered for general-purpose high-current switching tasks in consumer electronics and industrial equipment where reliability under heavy load conditions is critical.

Single Bipolar Transistors Replacement Considerations

Consult official substitution lists for equivalent NPN transistors with matching 8 A current ratings and 50 V voltage capabilities. Verify pin compatibility and thermal characteristics before implementing any alternative components in existing designs.