DDTA124XCA-7-F

Overview

The DDTA124XCA-7-F is a single PNP pre-biased transistor manufactured by Diodes Incorporated, housed in an SOT-23 surface-mount package. It integrates internal biasing resistors with typical values of R1 = 22 kΩ and R2 = 47 kΩ, yielding a resistance ratio of 0.47. The device supports a maximum supply voltage (VCC) of -50 V and a continuous collector current of -100 mA. Electrical characteristics include a minimum DC current gain (hFE) of 68 and a transition frequency (fT) of 250 MHz. Thermal performance allows for a power dissipation of 200 mW at +25°C, with an operating temperature range spanning from -55°C to +150°C.

Feature Summary

• Epitaxial planar die construction designed for automated assembly within a surface-mount package.
• Integrated biasing resistors eliminate the need for external components to configure inverter circuits.
• Manufactured using halogen-free and antimony-free green materials compliant with RoHS directives.

Applications

• Inverter circuits requiring integrated input biasing
• Switching applications in low-voltage digital logic interfaces
• General-purpose amplification stages

Procurement Notes

Verify component authenticity through authorized distribution channels or direct manufacturer engagement. Confirm that the specific ordering suffix matches the required packaging format and reel specifications. Ensure compliance with relevant environmental regulations such as RoHS 3 and REACH standards before finalizing procurement decisions.

Selection Notes

Select this component when a PNP configuration with a 22 kΩ base resistor and 47 kΩ emitter-base resistor is required. Verify that the -50 V breakdown voltage and -100 mA current limits align with the circuit design parameters. Consider the SOT-23 footprint constraints and thermal dissipation requirements relative to the application environment.

Part Context

This part belongs to the DDTA (R1≠R2 SERIES) CA family, which provides various combinations of built-in biasing resistors for PNP transistors. The 'CA' designation indicates the specific package type and material composition. Complementary NPN types are available under the DDTC series for designs requiring matched pairs.

Replacement Considerations

Direct substitutes within the same series include DDTA123JCA, DDTA123YCA, and DDTA144WCA. These alternatives offer different resistor ratios and current ratings. Verify pinout compatibility and electrical parameter alignment before substitution.

FAQ

What are the typical values for the built-in resistors?

The typical values are R1 = 22 kΩ and R2 = 47 kΩ.

Is this component suitable for automotive applications?

Standard versions are not recommended for automotive use. Automotive-grade parts require specific qualification to AEC-Q100/101/104/200 standards and must be obtained through direct contact with Diodes Incorporated.

What is the maximum power dissipation rating?

The maximum power dissipation is 200 mW at an ambient temperature of +25°C.