DTA115EU3T106

Overview

The DTA115EU3T106 is a single PNP digital transistor manufactured by ROHM Semiconductor, housed in a SOT-323 (UMT3) surface-mount package. It features built-in bias resistors with typical values of 100 kOhms for both R1 and R2, maintaining a resistance ratio of 1. The device supports a supply voltage of -50 V and a continuous collector current of -100 mA. Key electrical parameters include a minimum DC current gain (hFE) of 82 at -5 mA and -5 V, a maximum operating frequency of 250 MHz, and a power dissipation rating of 200 mW. The emitter-base voltage (VEBO) is specified at -3 V.

Feature Summary

• Integrates NPN/PNP bipolar junction transistors with built-in bias resistors to simplify circuit design by eliminating external resistor requirements.
• Provides high-density mounting through the compact SOT-323 (UMT3/SC-70) three-terminal surface-mount package.
• Designed for high-speed switching applications with a maximum operating frequency of 250 MHz.

Applications

• General-purpose digital logic interface circuits
• Level shifting between different voltage domains
• Driver circuits for small-signal loads

Procurement Notes

Verify the specific suffix 'T106' to confirm the tape-and-reel packaging configuration and quantity per reel. Ensure compatibility with the SOT-323 footprint on the target PCB. Confirm RoHS compliance status through the official datasheet or manufacturer certification documents prior to final procurement decisions.

Selection Notes

Select this component when a PNP digital transistor with equal base and emitter resistors (100kΩ) is required. Compare against the DTC115 series for NPN equivalents. Verify that the -50V supply voltage and -100mA current limits meet the application's peak operational demands without exceeding the 200mW power dissipation threshold.

Part Context

This part belongs to the DTA11x series of bias-resistor-built-in transistors from ROHM. It shares the same pinout and package dimensions as the DTA115EUA but differs in manufacturing status and specific ordering suffixes. The EU3 designation indicates the specific SOT-323 variant within the broader digital transistor family.

Replacement Considerations

Public documentation identifies DTA115EUAT106 as a similar level part with the same pinout and package. Verify functional equivalence regarding internal resistor values and hFE characteristics before substitution.