BCX19T116

Overview

The BCX19T116 is an NPN bipolar junction transistor manufactured by ROHM Semiconductor. It features a collector-emitter voltage rating of 45V and a continuous collector current capacity of 500mA. The component is housed in an SSD3 surface-mount package, which corresponds to the SOT-23 form factor with three terminals. Designed for general-purpose amplification and switching applications, it utilizes silicon epitaxial planar construction to ensure high reliability and consistent performance across operating conditions.

Feature Summary

• NPN polarity configuration suitable for standard switching and amplification circuits
• Integrated surface-mount SSD3 packaging for compact board layout
• Silicon epitaxial planar construction for enhanced structural stability

Applications

• General-purpose signal amplification
• Electronic switching circuits
• Driver stages for low-power loads

Procurement Notes

Verify the specific ordering suffix T116 to confirm reel packaging quantities and tape specifications. Ensure compatibility with existing footprint designs referencing the SSD3 or SOT-23 mechanical dimensions. Cross-reference the manufacturer datasheet for thermal derating curves and maximum power dissipation limits under various ambient temperature conditions before finalizing procurement.

Selection Notes

Select this component when a 45V NPN transistor with 500mA current handling is required in a small surface-mount package. Compare hFE gain ranges against circuit biasing requirements. Consider thermal management needs relative to the SSD3 package's power dissipation capabilities. Verify that the voltage and current ratings exceed the maximum expected operational stresses in the target application environment.

Part Context

This part belongs to ROHM Semiconductor's discrete transistor portfolio, specifically within the general-purpose BJT category. The T116 suffix typically denotes tape-and-reel packaging for automated assembly. It serves as a standard replacement for legacy through-hole or larger surface-mount NPN transistors in consumer electronics and industrial control modules requiring moderate current switching.

Replacement Considerations

Direct pin-compatible substitutes may include other NPN transistors in the SOT-23/SSD3 package with matching 45V VCEO and 500mA IC ratings. Verify equivalent hFE gain bands and transition frequency characteristics to maintain circuit performance. Consult official substitution guides for confirmed equivalents with identical electrical specifications.