DTC143XE3TL

Overview

The DTC143XE3TL is an NPN digital transistor from the ROHM DTC143X series, housed in a SOT-416 (EMT3) surface-mount package. It integrates biasing resistors with values of R1 = 4.7 kΩ and R2 = 10 kΩ to simplify circuit design. The device supports a maximum supply voltage (VCC) of 50 V and a continuous collector current (IC) of 100 mA. Key electrical characteristics include a typical transition frequency (fT) of 250 MHz, a DC current gain (hFE) minimum of 30 at 10 mA/5 V, and a power dissipation rating of 150 mW. The component operates within a junction temperature range up to 150°C.

Feature Summary

• Built-in biasing resistors eliminate the need for external input components, enabling direct configuration as an inverter circuit.
• Simplified operation requires only setting on/off conditions, reducing complexity in circuit design.
• High-speed performance supported by a transition frequency of 250 MHz.

Applications

• Inverter circuits
• Interface logic
• Driver stages

Procurement Notes

Verify the specific ordering suffix against the manufacturer's datasheet to confirm the package type and taping specifications. Ensure that the procurement documentation matches the required RoHS compliance status and confirms the component is suitable for standard electronic equipment applications rather than specialized automotive or medical uses without prior consultation.

Selection Notes

Select this component when a compact NPN solution with integrated biasing is required for signal inversion or switching. Consider the 50 V collector-emitter voltage and 100 mA current limits relative to the load requirements. Verify that the SOT-416 footprint aligns with the PCB layout constraints and that the thermal dissipation capabilities are sufficient for the operating environment.

Part Context

This part belongs to the DTC143X series of Bias Resistor Built-in Transistors (BRBTs). The 'E3' suffix typically denotes the SOT-416 package variant with specific marking codes. Complementary PNP versions are available in the DTA143X series. The series is designed for general-purpose digital switching and logic interface applications in consumer and industrial electronics.

Replacement Considerations

Direct pin-compatible replacements may exist within the same series using different packages, such as DTC143XM (SOT-723) or DTC143XKA (SOT-346), provided the electrical ratings and internal resistor values match. Always verify the absolute maximum ratings and thermal characteristics before substituting.

FAQ

What are the internal resistor values for the DTC143XE3TL?

The internal biasing resistors are configured with R1 (base resistor) at 4.7 kΩ and R2 (emitter-base resistor) at 10 kΩ.

Is this component suitable for automotive applications?

No, the product is designed for ordinary electronic equipment. Use in automotive applications requires prior consultation with ROHM sales representatives.

What is the maximum power dissipation for this package?

The maximum power dissipation for the SOT-416 package is 150 mW at 25°C ambient temperature.