DTA124ESATP

Overview

The DTA124ESATP is a PNP digital transistor from ROHM Semiconductor, featuring built-in bias resistors. It utilizes the SPT (SC-72) surface-mount package and operates with a collector-emitter voltage of -50V and a continuous collector current of -100mA. The device incorporates thin-film resistors for R1 and R2, both typically 22kΩ, enabling inverter circuit configuration without external input components. Key electrical characteristics include a DC current gain (GI) of at least 56 and a transition frequency (fT) of 250MHz. Power dissipation is rated at 300mW, supporting operation within a junction temperature range of -40°C to +100°C.

Feature Summary

• Built-in bias resistors allow direct inverter circuit configuration without external input resistors.
• Thin-film resistor structure provides complete isolation, allowing positive input biasing and minimizing parasitic effects.
• Simplified design process requiring only on/off condition settings for operation.

Applications

• Inverter circuits
• Interface logic
• Driver stages

Procurement Notes

Verify the specific suffix 'TP' against official documentation to confirm packaging details and reel specifications. Ensure the component meets standard electronic equipment requirements, as it is not designated for high-reliability safety applications such as medical or aerospace systems without prior consultation.

Selection Notes

Select this model for applications requiring a PNP digital transistor with integrated biasing in an SPT package. Confirm that the 22kΩ internal resistance values align with the target interface voltage levels. Verify power dissipation limits relative to ambient operating temperatures to ensure thermal stability.

Part Context

This component belongs to the DTA124E series, which includes variants like DTA124EM, DTA124EE, and DTA124EKA. These devices share identical electrical performance but differ in physical packaging and taping specifications. The DTA124ESATP specifically denotes the SPT package variant within this family.

Replacement Considerations

Compatible substitutes within the same series include DTA124EM, DTA124EE, DTA124EUA, and DTA124EKA. Note that these alternatives utilize different packages (EMT3, VMT3, UMT3, SMT3) and may require PCB layout adjustments due to differing pinouts and dimensions.