DDTC124ECA-7-F

Overview

The DDTC124ECA-7-F is an NPN pre-biased small signal surface mount transistor manufactured by Diodes Incorporated. It features built-in biasing resistors where R1 equals R2, with a nominal resistance of 22 kOhms each. The device operates with a maximum supply voltage (VCC) of 50 V and supports a continuous collector current (Ic) of 100 mA. Electrical characteristics include a minimum DC current gain (hFE) of 56 at 5 mA and 5 V, and a transition frequency (fT) of 250 MHz. Power dissipation is rated at 200 mW, and the unit is housed in a SOT-23 package.

Feature Summary

• Integrated biasing resistors eliminate the need for external input components to configure inverter circuits.
• Qualified to AEC-Q101 standards for high reliability and capable of PPAP submission.
• Constructed using epitaxial planar die technology within a molded plastic case.
• Fully compliant with RoHS directives and free from halogen and antimony.

Applications

• Inverter circuits requiring simplified input configurations
• Switching applications in automotive electronics
• General-purpose digital logic interfacing

Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm that the ordering suffix '-7-F' corresponds to the standard active product status rather than automotive-specific variants. Ensure compliance with environmental regulations such as RoHS 3 and REACH requirements before procurement.

Selection Notes

Select this model when equal base and emitter resistor values are required for specific biasing ratios. Compare against other series members like DDTC123ECA or DDTC144ECA if different resistance values are needed. Verify thermal management capabilities given the 200 mW power dissipation limit in the SOT-23 package.

Part Context

This component belongs to the DDTC (R1 = R2 Series) CA family of NPN pre-biased transistors. It serves as a complement to the DDTA PNP types available from the same manufacturer. The 'CA' designation indicates the specific resistor ratio configuration and packaging style used in this product line.

Replacement Considerations

Direct substitutes may include other NPN pre-biased transistors with identical 22kΩ/22kΩ resistor networks and SOT-23 packaging. Verify electrical parameters such as VCEO, IC, and hFE match the original specifications. Check for equivalent AEC-Q101 qualification if automotive application is required.

FAQ

What is the nominal value of the built-in resistors?

The nominal resistance for both R1 and R2 is 22 kOhms.

Is this component suitable for automotive applications?

Yes, it is qualified to AEC-Q101 standards and is PPAP capable.

What is the maximum supply voltage?

The maximum supply voltage (VCC) is 50 V.