DDTA113TCA-7

Overview

The DDTA113TCA-7 is a PNP pre-biased transistor from the DDTA (R1-ONLY SERIES) CA family, manufactured by Diodes Incorporated. It features an epitaxial planar die construction and integrates a single built-in biasing resistor (R1) with a nominal value of 1 kΩ. The device operates within a collector-emitter voltage range of -50 V and supports a maximum continuous collector current of -100 mA. Electrical characteristics include a DC current transfer ratio (hFE) ranging from 100 to 600 at IC = -1mA and VCE = -5V, and a gain-bandwidth product (fT) of 250 MHz. Thermal performance specifies a power dissipation of 200 mW and a junction-to-ambient thermal resistance of 625 °C/W. The component is housed in an SOT23 package and functions across an operating temperature range of -55°C to +150°C.

Feature Summary

• Integrates a single internal base biasing resistor (R1 only) to simplify circuit design and reduce board space.
• Utilizes epitaxial planar die construction for reliable semiconductor performance.
• Manufactured using totally lead-free materials that are fully RoHS compliant and halogen/antimony free.

Applications

• General-purpose switching applications requiring compact surface-mount solutions.
• Driver circuits for low-power loads where integrated biasing reduces external component count.
• Automotive electronics systems requiring components qualified to AEC-Q100/101 standards.

Procurement Notes

Verify the specific ordering suffix against official documentation, as variations such as '-F' may indicate different packaging configurations like reel sizes or tape widths. Confirm compliance requirements including RoHS 3 and REACH status directly with the manufacturer or authorized distributors before procurement. Ensure the selected variant matches the required marking code and date code specifications for your assembly process.

Selection Notes

Select this component when a PNP digital transistor with a 1 kΩ base resistor is required. Compare the -50 V collector-emitter voltage rating against the system's maximum supply voltage to ensure adequate headroom. Verify that the 200 mW power dissipation limit accommodates the thermal environment, considering the 625 °C/W thermal resistance if mounted on standard FR4 substrates.

Part Context

This part belongs to the DDTA R1-Only Series CA, which provides complementary NPN types under the DDTC designation. The series offers various resistor values, with the DDTA113TCA specifically featuring a 1 kΩ input resistor. It is designed for surface-mount technology (SMT) applications, offering a compact alternative to discrete resistor-transistor networks in modern electronic designs.

Replacement Considerations

Direct substitutes within the same series include other DDTA variants with different resistor values, such as DDTA123TCA (2.2 kΩ) or DDTA143TCA (4.7 kΩ), provided the biasing requirements differ. Complementary NPN equivalents are available in the DDTC series. Verify pinout compatibility and electrical parameters before substituting.