DDTA123EUA-7-F

Overview

The DDTA123EUA-7-F is a PNP pre-biased small signal surface mount transistor manufactured by Diodes Incorporated. It features built-in biasing resistors with nominal values of R1 = 2.2 kΩ and R2 = 2.2 kΩ, housed in an SOT-323 package. The device supports a maximum supply voltage (VCC) of -50 V and a continuous collector current (IC) of -100 mA. Electrical characteristics include a minimum DC current gain (hFE) of -20 at VO = -5 V and IO = -20 mA, and a transition frequency (fT) of 250 MHz. Power dissipation is rated at 200 mW, with an operating temperature range from -55 °C to +150 °C.

Feature Summary

• Epitaxial planar die construction for reliable performance
• Integrated biasing resistors simplify circuit design
• RoHS compliant and lead-free manufacturing

Applications

• General-purpose switching applications
• Driver circuits for low-power loads
• Logic level translation interfaces

Procurement Notes

Verify the component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific revision status and date code against the latest datasheet documentation. Ensure compliance with RoHS directives and environmental regulations relevant to your region before finalizing procurement decisions.

Selection Notes

Select this component when a compact PNP solution with integrated base and emitter resistors is required. The SOT-323 package offers space efficiency for dense PCB layouts. Consider the -50 V rating and -100 mA current capability to ensure adequate headroom for the intended load conditions.

Part Context

This part belongs to the DDTA series of PNP digital transistors from Diodes Incorporated. It serves as the complementary counterpart to the DDTC NPN series. The 'EUA' suffix indicates the specific resistor configuration and SOT-323 packaging format within the broader product family.

Replacement Considerations

Direct substitutes include other DDTA123 variants with identical electrical specifications but different packaging, such as DDTA123YUA-7-F (SOT-523). Verify pinout compatibility and thermal resistance differences when considering alternative packages.