DTC143ZEBTL

Overview

The DTC143ZEBTL is a single NPN digital transistor manufactured by ROHM Semiconductor, housed in an SOT-416 (EMT3) surface-mount package. It integrates bias resistors with typical values of R1 = 4.7 kΩ and R2 = 47 kΩ, yielding a ratio of 10. Key electrical parameters include a collector-emitter breakdown voltage (VCEO) of 50 V, a continuous collector current (IC) of 100 mA, and a power dissipation (PD) of 150 mW. The device features a minimum DC current gain (hFE) of 80 at IC = 10 mA and VCE = 5 V, with a transition frequency (fT) of 250 MHz. Operating temperatures range from -55°C to +150°C.

Feature Summary

• Integrates dual bias resistors (R1 and R2) to simplify circuit design and reduce component count.
• Provides high-speed switching capabilities suitable for logic interface applications.
• Offers compact surface-mount packaging for automated assembly processes.

Applications

• Logic level shifting and interface circuits between microcontrollers and peripheral devices.
• Inverter circuits requiring built-in biasing without external resistors.
• General-purpose switching applications in consumer electronics.

Procurement Notes

Verify the specific suffix 'BTL' against the manufacturer's official datasheet to confirm tape-and-reel packaging specifications and quantity per reel. Ensure the ordering part number matches the exact RoHS compliance status and lead time requirements defined in the latest production documentation. Cross-reference distributor listings with the official ROHM database to avoid counterfeit components.

Selection Notes

Select this component when a single NPN digital transistor with a 10:1 resistor ratio is required. Compare the 150 mW power dissipation limit against thermal constraints in the target application. Verify that the 50 V collector-emitter voltage rating exceeds the maximum operating voltage. Consider the SOT-416 footprint compatibility during PCB layout design.

Part Context

This part belongs to the ROHM DTC143 series of pre-biased NPN transistors. It shares the same internal circuit topology and electrical characteristics as the DTC143ZE and DTC143ZETL variants, differing primarily in packaging format or reel configuration. The series is designed for standard commercial applications rather than automotive-grade environments.

Replacement Considerations

Direct substitutes within the same family include DTC143ZE and DTC143ZETL, which share identical electrical specifications. Verify pinout compatibility and physical dimensions before substitution. Alternative manufacturers may offer functionally equivalent parts, but parameter tolerances and thermal performance should be validated against the original datasheet.