DTA144TET1G

Overview

The DTA144TET1G is a PNP Bias Resistor Transistor (BRT) from onsemi, integrating a single transistor with a monolithic bias network consisting of a series base resistor and a base-emitter resistor. It operates with a maximum collector-emitter voltage of 50 Vdc and continuous collector current of 100 mAdc. The device features a typical input resistance (R1) of 47 kOhms and a DC current gain (hFE) minimum of 120 at 5 mA and 10 V. Total power dissipation is rated at 200 mW in the SC-75 package, with an operating temperature range from -55°C to +150°C.

Feature Summary

• Integrates a single PNP transistor with a monolithic bias network containing two resistors to replace discrete components.
• Simplifies circuit design by reducing board space requirements and component count.
• Available in lead-free, halogen-free, and RoHS compliant packaging.

Applications

• Automotive applications requiring AEC-Q101 qualification and PPAP capability.
• General-purpose digital switching circuits requiring simplified biasing.
• Low-power surface mount applications where board space is limited.

Procurement Notes

Verify the specific ordering suffix 'ET' corresponds to the SC-75 package and tape & reel shipping configuration as documented in the manufacturer's ordering information table. Confirm that the Pb-Free indicator matches the required compliance standards for the target assembly process. Ensure the date code orientation aligns with manufacturing location specifications if critical for traceability.

Selection Notes

Select this component when a PNP digital transistor with a 47 kOhm base resistor is required. Compare against alternatives like DTA114TE or MUN2140 based on specific resistor values and package constraints. Verify that the 50 V collector-emitter voltage rating meets the circuit's maximum operating conditions. Consider thermal derating curves for high ambient temperature environments.

Part Context

This part belongs to the DTA144T/D family of digital transistors, which includes variants such as DTA144TM3 and NSBA144TF3. These devices share similar electrical characteristics but differ in package types including SOT-723 and SOT-1123. The family is designed to simplify circuit design by integrating bias resistors directly with the transistor die.

Replacement Considerations

Direct substitutes within the same family include DTA144TM3T5G (SOT-723 package). Cross-package equivalents with identical electrical parameters may include MUN2140T1G (SC-59) or MMUN2140LT1G (SOT-23), provided the pinout compatibility and thermal performance are verified for the specific application layout.