DTA114T

Overview

The DTA114T is a PNP digital transistor (BRT) manufactured by onsemi, designed to replace discrete transistors and external bias resistors. It integrates a single PNP silicon transistor with a monolithic bias network consisting of two resistors: a series base resistor and a base-emitter resistor. The device is housed in the SC-75 (SOT-416) surface-mount package. Key electrical parameters include a maximum collector-emitter voltage (VCEO) of 50 V, a continuous collector current (Ic) of 100 mA, and a power dissipation (Pd) of 200 mW. The typical input resistance is 10 kOhms with a typical resistor ratio of 0.21. The DC current gain (hFE) minimum is specified at 80. Operating temperatures range from -55°C to +150°C.

Feature Summary

• Integrates a PNP transistor with a monolithic bias network including series base and base-emitter resistors to simplify circuit design.
• Reduces system cost and board space by eliminating individual discrete components required for biasing.
• Designed for low-power surface mount applications using the compact SC-75 package.

Applications

• General-purpose switching applications requiring simplified bias networks.
• Low-power surface mount circuits where board space conservation is critical.
• Digital logic interface circuits replacing discrete transistor-resistor combinations.

Procurement Notes

Verify the specific suffix (e.g., TET1G vs. T) as it determines packaging format and compliance status. Confirm RoHS and REACH compliance documentation availability through official manufacturer channels. Check for End-of-Life (EOL) notices or Production Change Notices (PCN) that may affect long-term supply stability. Ensure the selected variant matches the required SC-75/SOT-416 footprint for PCB layout compatibility.

Selection Notes

Select this component when a PNP digital transistor with integrated biasing is needed to reduce component count. Verify that the 50V VCEO and 100mA Ic ratings exceed the application's maximum operating conditions. Consider the SC-75 package size constraints relative to available PCB real estate. Ensure the thermal management strategy supports the 200mW power dissipation rating within the expected ambient temperature range.

Part Context

The DTA114T belongs to the DTA114YE/DTA114T series of PNP silicon digital transistors from onsemi. These devices are part of a broader family of pre-biased transistors designed to streamline analog and digital circuit designs by integrating necessary biasing resistors directly onto the silicon die alongside the transistor element.

Replacement Considerations

Public confirmed substitute part numbers include DTA114YET1G. Verify pinout compatibility and electrical parameter equivalence before substitution. Note that DTA114TET1G is listed as obsolete in some distributor records; confirm current availability and equivalent active parts through official onsemi channels.