DDTA115TCA-7-F

Overview

The DDTA115TCA-7-F 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 internal biasing resistor (R1) with a nominal value of 100 kΩ. The device is housed in a surface-mount SOT23 package. Key electrical specifications 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 at +25°C. The DC current transfer ratio (hFE) ranges from 100 to 600 at IC = -1mA and VCE = -5V, with a gain-bandwidth product (fT) of 250 MHz. The component operates within a temperature range of -55°C to +150°C.

Feature Summary

• Integrates a single built-in biasing resistor (R1 only) to simplify circuit design and reduce board space.
• Utilizes epitaxial planar die construction for reliable performance.
• Comes in a compact SOT23 surface-mount package suitable for automated assembly.

Applications

• General-purpose switching applications requiring integrated base biasing.
• Driver circuits for low-current loads where simplified bias networks are preferred.
• Digital logic interface circuits utilizing PNP transistors.

Procurement Notes

Verify the specific ordering suffix '-7-F' corresponds to the standard reel packaging configuration as documented in the manufacturer's official ordering information table. Confirm that the 'Active' status aligns with current production availability through authorized distribution channels. Ensure compliance with RoHS 3 and halogen-free requirements if specified for the target application environment.

Selection Notes

Select this component when a PNP pre-biased transistor with a 100 kΩ base resistor is required. Compare against other series members like DDTA114TCA (10 kΩ) or DDTA124TCA (22 kΩ) based on the necessary input impedance. Verify that the SOT23 package dimensions and thermal characteristics meet the PCB layout and power dissipation constraints of the design.

Part Context

This part belongs to the DDTA (R1-ONLY SERIES) CA family, which offers various resistor values within the same SOT23 footprint. Complementary NPN types are available under the DDTC series designation. The marking code for this specific variant is 'P23', distinguishing it from other resistance values in the lineup such as 'P12' for 10 kΩ or 'P16' for 22 kΩ.

Replacement Considerations

Direct functional substitutes within the same R1-only series include DDTA113TCA-7-F (1 kΩ), DDTA114TCA-7-F (10 kΩ), and DDTA124TCA-7-F (22 kΩ), provided the resistor value matches the circuit requirements. Other manufacturers' PNP pre-biased transistors in SOT23 packages may serve as alternatives if pinout and electrical parameters are verified.