DTC923TUBTL

Overview

The DTC923TUBTL is a single NPN digital transistor manufactured by ROHM Semiconductor, featuring built-in biasing resistors within an SOT-363 (UMT6) surface-mount package. It operates with a collector-emitter voltage of 20 V and a continuous collector current of 400 mA. The device includes two internal resistors, R1 and R2, both typically rated at 2.2 kOhms with a ratio of 1. Key electrical characteristics include a minimum DC current gain (hFE) of 820 at 5 mA and 5 V, a maximum operating frequency of 250 MHz, and a power dissipation capability of 150 mW. The emitter-base voltage is specified at 3 V, with a saturation voltage of 100 mV.

Feature Summary

• Integrates dual biasing resistors to simplify inverter circuit design without external components
• Provides high current drive capability suitable for switching applications
• Utilizes compact SMD packaging for efficient board space utilization

Applications

• General-purpose logic level shifting and inversion
• Driver circuits for small-signal loads
• Interface circuits between microcontrollers and peripheral devices

Procurement Notes

Verify the specific suffix against official ROHM documentation to confirm pinout and electrical tolerances. Ensure compatibility with RoHS directives if required by the target application. Cross-reference datasheet parameters such as hFE and VCEO with system requirements before finalizing procurement decisions.

Selection Notes

Select this component when a single NPN digital transistor with moderate current handling and low input resistance is required. Compare against alternatives like the DTC923TUB if package variations are acceptable. Consider the 20 V rating and 400 mA limit when designing for higher voltage or current environments.

Part Context

This part belongs to the DTC923 series of digital transistors from ROHM Semiconductor. It is designed as a replacement for discrete resistor-transistor networks, offering a simplified solution for digital switching tasks. The UMT6 package variant provides a compact footprint compared to larger through-hole options.

Replacement Considerations

Publicly confirmed substitutes include the DTC923TUB. Verify pin compatibility and electrical specifications before substitution.