DTA144GUAT106

Overview

The DTA144GUAT106 is a PNP digital transistor manufactured by Rohm Semiconductor, designed for use in switching and amplification applications. This component integrates an NPN driver transistor and bias resistors within a single SMT package to simplify circuit design. Key electrical parameters include a collector-emitter voltage (VCEO) of -50V and a collector current (IC) of -100mA. The built-in bias resistors are configured with R1 = 47kΩ and R2 = 47kΩ, enabling direct interfacing with logic outputs without external components. The device operates within a junction temperature range of -55°C to +150°C and is housed in a compact SC-88A (SOT-363) surface-mount package.

Feature Summary

• Integrated PNP output transistor paired with an NPN driver for simplified digital switching
• Built-in bias resistors eliminate the need for external input resistors
• Compact SC-88A (SOT-363) surface-mount package for space-constrained designs
• High reliability with extended operating temperature range up to 150°C

Applications

• General-purpose digital switching circuits
• Interface circuits between microcontrollers and peripheral devices
• Level shifting and signal inversion in low-power logic systems

Procurement Notes

Verify the complete part number including the tape-and-reel suffix 'T106' when ordering to ensure correct packaging configuration. Confirm that the supplier provides original manufacturer documentation or traceability records. Check for RoHS compliance status if required by your manufacturing standards. Ensure storage conditions adhere to moisture sensitivity level guidelines to prevent package damage prior to soldering.

Selection Notes

Select this component when a PNP digital switch is required with specific 47kΩ/47kΩ bias resistor values. Compare against complementary NPN types like the DTC114 series if the circuit polarity requires inversion. Consider the SC-88A footprint constraints during PCB layout. Verify that the -50V rating meets the maximum voltage swings in the target application environment.

Part Context

This part belongs to Rohm's DTA/DTC series of digital transistors, which combine bipolar junction transistors with integrated bias networks. The DTA prefix indicates a PNP output type, while the GUAT106 suffix denotes the specific pinout, resistor values, and reel packaging format. It serves as a drop-in replacement for discrete resistor-transistor combinations in standard logic interfaces.

Replacement Considerations

• DTA144G
• DTA144Z

FAQ

What are the internal resistor values for the DTA144GUAT106?

The internal bias resistors are configured as R1 = 47kΩ and R2 = 47kΩ.

Is the DTA144GUAT106 an NPN or PNP device?

It is a PNP digital transistor with an integrated NPN driver.

What is the maximum collector current for this component?

The maximum continuous collector current (IC) is -100mA.