DTC143EU3T106

Overview

The DTC143EU3T106 is a single NPN digital transistor manufactured by ROHM Semiconductor, housed in an SOT-323 (UMT3) surface-mount package. It integrates biasing resistors with typical values of 4.7 kΩ for both R1 and R2. The device supports a collector-emitter voltage (VCEO) of 50 V and a continuous collector current of 100 mA. Key electrical parameters include a minimum DC current gain (hFE) of 30 at 10 mA and 5 V, a transition frequency of 250 MHz, and a maximum power dissipation of 200 mW. The saturation voltage is specified at 300 mV under standard test conditions.

Feature Summary

• Integrates built-in biasing resistors to eliminate the need for external input components in inverter circuits.
• Provides high-speed switching capabilities suitable for applications requiring fast response times.
• Offers compact surface-mount packaging designed for automated assembly processes.

Applications

• Inverter circuits utilizing integrated biasing without external resistors
• Switching applications within portable electronic devices
• General-purpose logic interface circuits

Procurement Notes

Verify component authenticity through authorized distribution channels or direct manufacturer engagement. Confirm RoHS compliance status and specific ordering suffixes against official datasheets prior to procurement. Ensure storage conditions adhere to moisture sensitivity level requirements to maintain device integrity during handling and assembly.

Selection Notes

Select this component when a single NPN configuration with equal 4.7 kΩ internal resistors is required. Verify that the 50 V collector-emitter rating and 100 mA current capacity align with circuit demands. Consider the SOT-323 footprint constraints and thermal dissipation limits relative to the application environment.

Part Context

This part belongs to the DTC143 series of pre-biased transistors from ROHM Semiconductor. The 'EU3' designation indicates the specific resistor ratio and package type, while 'T106' denotes the tape and reel packaging format. It serves as a standard discrete solution for simplifying digital switching designs.

Replacement Considerations

The DTC143EU3HZGT106 is identified as a similar alternative with the same pinout and package. Verify functional equivalence regarding resistor values and electrical ratings before substitution. Cross-reference specific suffix codes to ensure compatibility with existing manufacturing processes.