DTC123JCAHZGT116

Overview

The DTC123JCAHZGT116 is a single NPN digital transistor manufactured by ROHM Semiconductor, housed in an SOT-23-3 surface-mount package. It integrates bias resistors with a typical input resistance of 2.2 kOhms and a resistor ratio of 21. Key electrical specifications include a maximum collector-emitter voltage (VCEO) of 50 V, a continuous collector current of 100 mA, and a power dissipation rating of 350 mW. The device features a minimum DC current gain (hFE) of 80 at 10 mA and 5 V, with a maximum operating frequency of 250 MHz. It is qualified under AEC-Q101 standards for automotive applications and supports operation up to a maximum junction temperature of +150°C.

Feature Summary

• Integrates built-in bias resistors to simplify circuit design and reduce component count.
• Qualified for automotive reliability under the AEC-Q101 standard.
• Designed for high-frequency switching applications with a cutoff frequency of 250 MHz.
• Utilizes a compact SOT-23-3 package suitable for space-constrained surface-mount assemblies.

Applications

• Automotive interface circuits requiring robust digital switching.
• Driver circuits for loads such as relays or small motors.
• General-purpose logic level shifting and buffer stages in consumer electronics.

Procurement Notes

Verify the complete part number including the suffix GT116 to ensure correct packaging configuration. Confirm that the specific revision matches the required AEC-Q101 qualification status for your target application. Cross-reference the datasheet for thermal derating curves if operating near the maximum temperature limit. Ensure compatibility with your PCB footprint for the SOT-23-3 package.

Selection Notes

Select this component when a single NPN switch with integrated base and emitter resistors is required. The 2.2 kOhm input resistance suits direct interfacing with standard logic outputs. Consider the 50 V voltage rating and 100 mA current capacity against load requirements. Compare with PNP variants like DTA123JCAHZGT116 if negative logic control is needed instead.

Part Context

This part belongs to ROHM's CAHZ series of digital transistors, which are optimized for automotive and industrial use. The 'J' designation typically indicates specific resistor values within the family. It is distinct from non-automotive grades and general-purpose BJTs like the BC846 series due to its integrated resistor network and higher reliability standards.

Replacement Considerations

Direct pin-compatible substitutes may include other ROHM parts with identical resistor ratios, such as DTC123ECAHZGT116, provided the voltage and current ratings meet system requirements. Verify that any alternative maintains the same SOT-23-3 footprint and AEC-Q101 qualification if automotive compliance is mandatory.