2SD1858TV2R

Single Bipolar Transistors Overview

The 2SD1858TV2R is an NPN silicon epitaxial planar medium power transistor designed for general-purpose switching and amplification. It features a collector-emitter voltage (VCEO) of 32 V, a continuous collector current (IC) of 1 A, and a low collector-emitter saturation voltage (VCE(sat)) with a typical value of 0.15 V at IC/IB = 500mA / 50mA. The device operates within a junction temperature range up to 150 °C and is supplied in a TSMT3 surface-mount package.

Single Bipolar Transistors Feature Summary

• Low collector-emitter saturation voltage for efficient switching performance
• High DC current transfer ratio (hFE) supporting robust drive capabilities
• Complementary design pairing with the 2SB1237 PNP transistor

Single Bipolar Transistors Applications

• General-purpose switching circuits
• Amplifier stages in consumer electronics
• Driver transistors for audio-visual equipment

Single Bipolar Transistors Procurement Notes

Verify the specific hFE bin classification required for your application, as the TV2R suffix indicates a tape-and-reel packaging format with a basic ordering unit of 2500 pieces. Confirm that the standard-grade product rating aligns with your target equipment's reliability requirements before finalizing procurement.

Single Bipolar Transistors Selection Notes

Select this component when a compact NPN transistor with high current handling and low saturation voltage is needed. Ensure the 32 V collector-emitter voltage rating exceeds the maximum circuit operating voltage. Consider the complementary 2SB1237 if a matched PNP counterpart is required for push-pull configurations.

Single Bipolar Transistors Part Context

This part belongs to ROHM's medium power transistor lineup, utilizing an epitaxial planar structure for improved thermal stability and electrical consistency. It is intended for use in general-use electronic equipment such as office automation, communication devices, and electronic appliances, rather than specialized automotive or medical systems.

Single Bipolar Transistors Replacement Considerations

The datasheet explicitly states that the 2SD1858 complements the 2SB1237. No other direct substitute part numbers are documented in the provided source material.