2SA1814-TB-E

Single Bipolar Transistors Overview

The onsemi 2SA1814-TB-E is a PNP epitaxial planar silicon transistor designed for surface-mount applications. It features a maximum collector-emitter voltage of -50V and a continuous collector current of 150mA. The device operates with a maximum power dissipation of 200mW and supports junction temperatures up to 150°C. Packaged in the compact CPA (SOT-363) format, it offers high DC current gain and fast switching characteristics suitable for low-power signal processing.

Single Bipolar Transistors Feature Summary

• Utilizes MBIT process technology for enhanced reliability and performance
• Features ultrasmall CPA package enabling high-density board layouts
• Provides low collector-to-emitter saturation voltage for efficient switching
• Designed for high-speed operation with fast transition times

Single Bipolar Transistors Applications

• General-purpose switching circuits
• Low-voltage amplifier stages
• Driver circuits for small loads
• Battery-powered portable devices

Single Bipolar Transistors Procurement Notes

Verify the specific ordering suffix matches the required tape-and-reel or cut-tape configuration. Confirm RoHS compliance status and moisture sensitivity level prior to assembly. Ensure the supplier provides valid traceability documentation. Check for any recent obsolescence notices from onsemi. Validate that the component lot date code meets project requirements.

Single Bipolar Transistors Selection Notes

Select this component when a compact PNP transistor is needed for low-voltage, low-current applications. Compare against alternatives based on CPA package availability and thermal resistance limits. Consider the -50V breakdown voltage constraint for circuit design. Evaluate the 150mA current limit against peak load requirements. Verify compatibility with existing PCB footprint designs utilizing SOT-363 packages.

Single Bipolar Transistors Part Context

This part belongs to onsemi's line of small-signal PNP transistors optimized for surface-mount technology. It complements other CPA-packaged devices by offering a balance of speed and power handling in a minimal footprint. The series is commonly used in consumer electronics where space constraints are critical.

Single Bipolar Transistors Replacement Considerations

Check for direct pin-compatible substitutes within the same CPA package family. Verify electrical parameters such as hFE and VCEO match or exceed original specifications. Ensure thermal characteristics remain compatible with the host design.