2SD1858TV2P

Single Bipolar Transistors Overview

The 2SD1858TV2P is a medium power NPN silicon epitaxial planar transistor manufactured by ROHM. It features a collector-emitter voltage of 32V and a continuous collector current rating of 1A. The device achieves a typical low collector-emitter saturation voltage of 0.15V at specified drive conditions. It includes an hFE classification system with R (180-390) and Q (120-270) grades, packaged in a TV2 SOT-89 format for surface mount applications.

Single Bipolar Transistors Feature Summary

• Low collector-emitter saturation voltage for efficient switching performance
• Complementary design pairing with the 2SB1237 PNP transistor
• Epitaxial planar structure utilizing NPN silicon technology

Single Bipolar Transistors Applications

• General-purpose audio visual equipment
• Office automation systems
• Communication devices
• Electronic appliances
• Amusement devices

Single Bipolar Transistors Procurement Notes

Verify the specific ordering code suffix to confirm the required hFE gain grade (R or Q). Confirm the TV2 package designation matches the target PCB footprint. Ensure the basic ordering unit quantity aligns with production requirements. Cross-reference the datasheet revision date against manufacturing timelines.

Single Bipolar Transistors Selection Notes

Select this component when a 32V NPN transistor with 1A capability is required. Consider the complementary 2SB1237 if a matched pair is needed. Evaluate thermal dissipation limits based on the copper clad PCB mounting area. Verify that the transition frequency meets the circuit's operational bandwidth needs.

Single Bipolar Transistors Part Context

This part belongs to ROHM's medium power transistor lineup designed for general-use electronic equipment. It utilizes an epitaxial planar structure to ensure stable operation across a wide temperature range. The product is intended for standard consumer electronics rather than specialized high-reliability automotive or aerospace sectors.

Single Bipolar Transistors Replacement Considerations

The 2SB1237 serves as the designated complementary PNP counterpart. No direct public substitute part numbers are documented in the provided source material.