DTC043EUBTL

Overview

The DTC043EUBTL is a single NPN digital transistor manufactured by ROHM Semiconductor, featuring built-in bias resistors within an SOT-323FL-3 (UMT3F) surface-mount package. It supports a collector continuous current of 100 mA and a maximum operating frequency of 250 MHz. The device has a collector-emitter breakdown voltage of 50 V and a power dissipation rating of 200 mW. Key electrical parameters include a typical input resistance of 4.7 kOhms with a resistor ratio of 1, a minimum DC current gain (hFE) of 20 at 5 mA and 10 V, and a maximum collector-emitter saturation voltage of 150 mV. The unit weight is 24.033 mg.

Feature Summary

• Integrates NPN bipolar junction transistor with dual internal bias resistors to simplify circuit design.
• Provides high-speed switching capability suitable for frequencies up to 250 MHz.
• Offers low saturation voltage for efficient signal transmission in compact surface-mount configurations.

Applications

• General-purpose switching circuits
• Driver applications for logic interfaces
• Signal level shifting between different voltage domains

Procurement Notes

Verify the specific suffix 'UBTL' against the manufacturer's latest datasheet to confirm the exact reel quantity and tape specifications. Ensure the ordering part number matches the required packaging format, such as cut tape or reel, as these variations affect handling procedures. Cross-reference the RoHS compliance status with current environmental regulations before finalizing procurement orders.

Selection Notes

Select this component when a compact NPN solution with integrated base and emitter-base resistors is required. The 4.7 kOhm input resistance value suits standard logic interface applications. Consider the 100 mA current limit and 200 mW power dissipation constraints during thermal management planning. Verify that the SOT-323FL-3 footprint aligns with the target PCB layout requirements.

Part Context

This part belongs to the DTC043 series of digital transistors from ROHM Semiconductor. It shares the same internal resistor configuration as other variants but differs in packaging and suffix codes. The UMT3F package provides a small form factor compared to larger through-hole alternatives, making it suitable for dense consumer electronics assemblies.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult the manufacturer's official replacement guide or similar series components like the DTC043TEBTL for alternative packaging options.