DTC144VCAT116

Overview

The DTC144VCAT116 is an NPN digital transistor from ROHM Semiconductor, featuring built-in biasing resistors in a surface-mount SST3 (SOT-23) package. It supports a maximum collector current of 100 mA and a supply voltage of 50 V. The internal circuit includes a base resistor (R1) of 47 kΩ and an emitter-base resistor (R2) of 10 kΩ. Key electrical characteristics include a DC current gain (hFE) of at least 33 at 5 mA/5 V, a transition frequency of 250 MHz, and a power dissipation rating of 200 mW on a reference footprint. The device operates within a junction temperature range up to 150°C.

Feature Summary

• Built-in thin-film biasing resistors enable inverter circuit configuration without external input components.
• Complete isolation between bias resistors allows for negative input biasing while eliminating parasitic effects.
• Simplified circuit design by requiring only on/off condition settings for operation.

Applications

• Switching circuits
• Inverter circuits
• Interface circuits
• Driver circuits

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct packaging and taping specifications. Confirm that the component meets RoHS compliance requirements for the intended application environment. Cross-reference the datasheet revision number with the procurement order to guarantee alignment with the latest electrical parameters and mechanical dimensions provided by Rohm Semiconductor.

Selection Notes

Select this component when a compact NPN solution with integrated biasing is required for low-power switching applications. Ensure the design accommodates the 47 kΩ base resistance and 10 kΩ emitter-base resistance values. Verify that the operating conditions remain within the specified absolute maximum ratings, particularly regarding power dissipation derating based on ambient temperature and thermal constraints of the mounting footprint.

Part Context

This part belongs to the DTC144VCA series of digital transistors manufactured by Rohm Semiconductor. It is designed as a single NPN unit with pre-biased resistors, offering a space-saving alternative to discrete resistor-transistor networks. The SST3 package provides a standard surface-mount form factor suitable for automated assembly processes in consumer and industrial electronics.

Replacement Considerations

DDTC144VCA-7-F by Diodes Incorporated is documented as a parameter-equivalent substitute.