2SA1728-5-TB-E

Single Bipolar Transistors Overview

The onsemi 2SA1728-5-TB-E is a PNP bipolar junction transistor (BJT) designed for general-purpose switching and amplification applications. This component features an epitaxial planar silicon construction, providing reliable performance in low-power circuits. It is rated for a maximum collector current of 0.5A and a collector-emitter voltage of 40V. The device is supplied in a compact SOT-323 surface-mount package, facilitating automated assembly and space-constrained PCB layouts. As a single BJT, it serves as a fundamental discrete semiconductor element for signal processing and power management tasks within consumer electronics and industrial control systems.

Single Bipolar Transistors Feature Summary

• Epitaxial planar silicon construction ensures stable electrical characteristics
• Compact SOT-323 surface-mount package design enables efficient PCB integration
• General-purpose PNP configuration suitable for switching and amplification roles

Single Bipolar Transistors Applications

• Consumer electronic circuit protection
• Industrial control system signal switching
• Low-power amplifier stages

Single Bipolar Transistors Procurement Notes

Verify the specific ordering suffix to confirm the exact tape-and-reel quantity and packaging format required for your production line. Ensure that the procurement channel provides valid traceability documentation matching the onsemi manufacturer specifications. Cross-reference the part number with the latest datasheet revisions to confirm pinout compatibility and thermal characteristics before finalizing supply agreements.

Single Bipolar Transistors Selection Notes

Select this component when designing circuits requiring a small-form-factor PNP transistor with moderate current handling capabilities. Evaluate the thermal resistance parameters against your expected operating temperature range to ensure reliability. Confirm that the 40V voltage rating exceeds the maximum transient voltages present in your application environment to prevent breakdown during normal operation or surge events.

Single Bipolar Transistors Part Context

This device belongs to onsemi’s portfolio of standard discrete semiconductors, specifically targeting the general-purpose BJT market segment. It complements other low-power switching components used in portable devices and embedded systems. The product line emphasizes cost-effective solutions for high-volume manufacturing while maintaining consistent quality standards across various industrial and consumer applications.

Single Bipolar Transistors Replacement Considerations

Consult official cross-reference lists for verified substitute part numbers from onsemi or compatible manufacturers. Ensure any replacement maintains identical pinout configurations and electrical ratings to guarantee functional equivalence without redesigning the host circuit board.