DDTA124GCA-7-F

Overview

The DDTA124GCA-7-F is a PNP pre-biased small signal surface mount transistor manufactured by Diodes Incorporated. It features an epitaxial planar die construction and integrates a single internal biasing resistor (R2) with a nominal value of 22 kOhms. The device is housed in an SOT-23 package, measuring approximately 2.80 mm in length and 1.40 mm in width. It supports a maximum collector-emitter voltage (VCEO) of -50 V and a continuous collector current (IC) of -100 mA. Power dissipation is rated at 200 mW, with an operating temperature range spanning from -55 °C to +150 °C.

Feature Summary

• Integrates a built-in biasing resistor (R2 only) to simplify circuit design and reduce component count.
• Constructed using epitaxial planar die technology for reliable performance.
• Qualified to AEC-Q101 standards to ensure high reliability in automotive applications.
• Manufactured as a lead, halogen, and antimony-free 'Green' device compliant with RoHS directives.

Applications

• Automotive electronic systems requiring high-reliability switching components.
• General-purpose digital logic interface circuits.
• Switching applications within consumer electronics.
• Driver stages for low-power loads in industrial control systems.

Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm packaging details and compliance status. Ensure that the procurement channel provides valid traceability data. Confirm that the delivered units match the specified SOT-23 package dimensions and marking codes. Validate environmental compliance certificates if required for the target application region.

Selection Notes

Select this component when a PNP configuration with a 22 kOhm base resistor is required. Consider the -50 V voltage rating and -100 mA current limit during circuit design. Evaluate the thermal resistance characteristics relative to the PCB layout. Compare the integrated resistor tolerance against external resistor options for precision requirements.

Part Context

This part belongs to the DDTA R2-only series of pre-biased transistors from Diodes Incorporated. It serves as a complementary counterpart to NPN types within the DDTC family. The device is designed to replace discrete resistor-transistor networks in space-constrained designs. It shares mechanical similarities with other SOT-23 packaged devices in the manufacturer's portfolio.

Replacement Considerations

Direct substitutes include other DDTA124 variants with identical electrical characteristics but different packaging or suffixes. Verify pinout compatibility before substitution. Check for equivalent thermal performance and voltage ratings. Ensure the replacement maintains the same 22 kOhm internal resistor value.