DTC143TETL

Overview

The DTC143TETL is an NPN digital transistor manufactured by ROHM Semiconductor, housed in a SOT-416 (EMT3) surface-mount package. It integrates a single bias resistor with a typical value of 4.7 kΩ. 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 100 at 1 mA and 5 V, a maximum operating frequency of 250 MHz, and a power dissipation rating of 150 mW. The emitter-base voltage (VEBO) is rated at 5 V, with an operational temperature range extending up to +150°C.

Feature Summary

• Integrates a built-in bias resistor to simplify circuit design by eliminating the need for external input resistors.
• Utilizes thin-film resistors with complete isolation to minimize parasitic effects and allow positive input biasing.
• Enables straightforward on/off switching operations, reducing complexity in inverter and interface applications.

Applications

• Inverter circuits
• Interface logic drivers
• General-purpose switching applications

Procurement Notes

Verify the specific suffix 'TL' against the manufacturer's official datasheet to confirm tape-and-reel packaging specifications and quantity per reel. Ensure compatibility with standard SMT reflow profiles and check for RoHS compliance documentation prior to integration into production lines.

Selection Notes

Select this component when a compact NPN digital transistor with a 4.7 kΩ base resistor is required. It is suitable for designs needing 50 V blocking capability and 100 mA drive current within a small SOT-416 footprint. Consider complementary PNP types like the DTA143 series if push-pull configurations are necessary.

Part Context

This part belongs to ROHM's standard digital transistor family, which combines bipolar transistors with integrated bias resistors. These devices are designed to replace discrete resistor-transistor combinations, saving board space and assembly time while maintaining consistent electrical characteristics across production batches.

Replacement Considerations

Direct pin-compatible substitutes may include other ROHM parts from the same series with identical resistance values and polarity. Verify that alternative components match the 50 V VCEO and 100 mA IC ratings to ensure functional equivalence in existing designs.