DTC115GU3T106

Overview

The DTC115GU3T106 is a single NPN digital transistor manufactured by ROHM Semiconductor, housed in an SOT-323 (UMT3) surface-mount package. It integrates bias resistors to simplify circuit design without external components. Key electrical parameters include a collector-emitter voltage (VCEO) of 50 V and a continuous collector current of 100 mA. The device features a typical input resistance of 100 kOhms and a minimum DC current gain (hFE) of 82 at 5 mA and 5 V. It operates with a maximum power dissipation of 200 mW and supports frequencies up to 250 MHz. The emitter-base voltage (VEBO) is rated at 5 V, and the maximum operating temperature reaches +150°C.

Feature Summary

• Integrates built-in bias resistors to eliminate the need for external resistor networks in switching applications.
• Designed for high-speed operation with a transition frequency capability of 250 MHz.
• Utilizes a compact SOT-323 surface-mount package suitable for space-constrained PCB layouts.

Applications

• General-purpose digital switching circuits
• Inverter logic gates requiring pre-biased transistors
• Interface circuits between microcontrollers and peripheral devices

Procurement Notes

Verify the specific suffix 'T106' corresponds to the tape-and-reel packaging format when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the ordering quantity aligns with standard factory pack sizes if bulk procurement is required. Cross-reference the datasheet revision date to guarantee parameter accuracy against current production batches.

Selection Notes

Select this component for NPN switching applications requiring a 50 V rating and 100 mA load capacity. The 100 kOhm internal base resistor makes it suitable for direct drive from standard logic outputs. Consider the SOT-323 thermal characteristics for power dissipation limits near 200 mW. Verify that the 250 MHz frequency response meets the signal speed requirements of the target application.

Part Context

This part belongs to the ROHM DTC115 series of Bias Resistor Built-in Transistors (BRBTs). The 'G' designation typically indicates specific performance or packaging variations within the family. It serves as a discrete alternative to integrated logic gates where simple amplification or switching is needed. The UMT3 package code identifies the physical footprint used across similar ROHM semiconductor products.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Engineering teams should consult official ROHM cross-reference guides or distributor substitution tools for verified equivalents. Ensure any replacement maintains the SOT-323 footprint and matches the 50 V / 100 mA electrical ratings.