DTC143ZE-TP

Overview

The DTC143ZE-TP is an NPN digital transistor manufactured by Micro Commercial Components (MCC) in a SOT-523 surface-mount package. It integrates thin-film bias resistors with complete isolation to enable negative input biasing and minimize parasitic effects. Key electrical specifications include a maximum supply voltage of 50V, an input voltage range up to 30V, and a collector current limit of 100mA. The device supports a power dissipation of 150mW at 25°C and features a transition frequency of 250MHz. Internal resistance values are typically 4.7kΩ for R1 and a ratio of 10 for R2/R1.

Feature Summary

• Built-in bias resistors facilitate inverter circuit configuration without external input components
• Thin-film resistor technology provides complete isolation for negative input biasing capability
• Halogen-free construction meets UL 94 V-0 flammability rating standards

Applications

• Inverter circuits requiring simplified design through integrated biasing
• Switching applications where only on/off conditions need setting
• High-frequency signal processing utilizing the 250MHz transition frequency

Procurement Notes

Verify authenticity by purchasing directly from MCC or authorized distributors to avoid counterfeit parts. Confirm RoHS compliance via the 'P' suffix designation if required. Ensure storage conditions align with Moisture Sensitivity Level 1 requirements. Check datasheet revisions for any updates to mechanical dimensions or electrical characteristics before finalizing procurement orders.

Selection Notes

Select this component when space constraints necessitate the compact SOT-523 package. Choose this part for designs requiring negative input biasing capabilities provided by the isolated thin-film resistors. Verify that the 50V supply voltage and 100mA current limits meet the specific circuit requirements. Consider the 150mW power dissipation rating relative to ambient temperature derating curves.

Part Context

This device belongs to the DTC143ZE series of NPN digital transistors. It is distinct from PNP variants like the DTA143ZCA-TP and other packages such as SOT-23. The internal structure combines a single NPN transistor with two specific bias resistors configured for standard logic interface applications.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Cross-referencing requires matching the SOT-523 package, NPN polarity, 50V rating, and internal resistor ratios.