DDTA113ZKA-7-F

Overview

The DDTA113ZKA-7-F is a PNP pre-biased small signal surface mount transistor from Diodes Incorporated, housed in an SC-59 (SOT-23) package. It features built-in biasing resistors with nominal values of R1 = 1 kΩ and R2 = 10 kΩ. The device supports a supply voltage up to -50 V and a continuous output current of -100 mA. Power dissipation is rated at 200 mW, with a junction-to-ambient thermal resistance of 625 °C/W. Operating and storage temperatures range from -55°C to +150°C.

Feature Summary

• Epitaxial planar die construction for reliable performance
• Integrated biasing resistors simplify circuit design
• Lead-free plating with matte tin finish over copper leadframe
• RoHS compliant and manufactured with green molding compound

Applications

• General-purpose switching applications
• Driver circuits for logic interfaces
• Low-power digital signal processing

Procurement Notes

Verify the specific ordering suffix '-7-F' confirms tape and reel packaging containing 3000 units per reel. Confirm that the 'KA' designation corresponds to the SC-59 case style and the required resistor ratio. Ensure compliance with RoHS directives if halogen-free status is critical for the assembly process.

Selection Notes

Select this component when a PNP configuration with unequal biasing resistors is required. The 1 kΩ base resistor and 10 kΩ emitter resistor provide specific drive characteristics suitable for interfacing with standard logic levels. Consider the SC-59 footprint constraints and the 200 mW power dissipation limit during thermal analysis.

Part Context

This part belongs to the DDTA1x3xCA series of single pre-biased transistors. It serves as the PNP counterpart to the DDTC113ZCA NPN type. The KA suffix specifically identifies the SC-59 package variant within the broader DDTA family offered by Diodes Incorporated.

Replacement Considerations

Direct substitutes include other PNP pre-biased transistors with similar 1k/10k resistor ratios and SC-59 packaging. Verify pinout compatibility and electrical ratings such as Vceo and Ic before substitution.