DTC123JSATP

Overview

The DTC123JSATP is an NPN digital transistor from ROHM Semiconductor, featuring built-in bias resistors (R1=2.2kΩ, R2=47kΩ) for simplified inverter circuit design. It operates with a supply voltage of 50V and a continuous collector current of 100mA. The device utilizes thin-film resistors to eliminate parasitic effects and allow negative input biasing. Key electrical parameters include a DC current gain (hFE) of at least 80 at 10mA/5V, a transition frequency of 250MHz, and a power dissipation of 150mW. It is housed in the SMT3 (SC-59) surface-mount package.

Feature Summary

• Built-in bias resistors enable direct inverter configuration without external components.
• Thin-film resistor construction provides complete isolation and eliminates parasitic effects.
• Supports negative input biasing capabilities.

Applications

• Inverter circuits
• Interface logic
• Driver applications

Procurement Notes

Verify the specific suffix 'TP' against official documentation to confirm tape-and-reel packaging specifications. Ensure the component meets standard electronic equipment requirements, as it is not recommended for automotive or high-reliability safety applications without prior consultation.

Selection Notes

Select this model for designs requiring a compact NPN pre-biased transistor with defined resistance ratios. The SMT3 package suits space-constrained PCB layouts. Verify that the 50V rating and 100mA current capacity align with the target load requirements.

Part Context

This part belongs to the DTC123J series of digital transistors manufactured by ROHM Semiconductor. The series includes variants like DTC123JM and DTC123JE, differing primarily in package codes such as VMT3, EMT3, and UMT3. All share the same internal NPN structure and resistor values.

Replacement Considerations

DTC123JSA is listed as a similar specification part within the same family. Other compatible packages include DTC123JM (EMT3) and DTC123JKA (UMT3), provided pinout compatibility is verified.