DTC143XSATP

Overview

The DTC143XSATP is an NPN epitaxial planar silicon digital transistor with built-in resistors, manufactured by ROHM Semiconductor. It operates at a maximum collector current of 100 mA and a supply voltage of 50 V. The device features a typical input resistance (R1) of 4.7 kΩ and a resistance ratio (R2/R1) of 2.1. Key electrical parameters include a DC current gain (hFE) minimum of 30 at 10 mA and 5 V, and a transition frequency (fT) of 250 MHz. Power dissipation is rated at 150 mW, with a junction temperature range from -55°C to +150°C.

Feature Summary

• Built-in bias resistors enable inverter circuit configuration without external input resistors.
• Thin-film resistors provide complete isolation, allowing negative input biasing.
• Design simplifies operation by requiring only on/off condition settings.

Applications

• Inverter circuits
• Interface applications
• Driver circuits

Procurement Notes

Verify the specific suffix 'TP' against official ROHM documentation to confirm packaging details such as tape and reel specifications or cut tape quantities. Ensure the component meets AEC-Q101 automotive standards if required for the target application environment.

Selection Notes

Select this component for designs requiring simplified biasing networks in single NPN configurations. Consider the 50V supply voltage limit and 100mA continuous current rating when sizing peripheral components. Verify thermal management requirements based on the 150mW power dissipation capability.

Part Context

This part belongs to the DTC143X series of digital transistors, which integrates bias resistors into a single package. The series includes variants like DTC143XE and DTC143XM, differing primarily in package types such as SOT-416 or SOT-323. The DTC143XSATP utilizes the SPT package code.

Replacement Considerations

Compatible substitutes within the same family include DTC143XEFRATL and DTC143XMHZGT2L. Verify pinout compatibility and electrical parameter equivalence before substitution.