DDTC123ECA-7-F

Overview

The DDTC123ECA-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 2.2 kΩ. The device operates with a maximum supply voltage (VCC) of 50 V and a continuous collector current (IO) of 100 mA. Power dissipation is rated at 200 mW, and the junction-to-ambient thermal resistance is 625 °C/W. The DC current gain (hFE) has a minimum value of 20 at VO = 5V and IO = 20mA. The transition frequency (fT) is typically 250 MHz. It is housed in a SOT-23 package.

Feature Summary

• Integrated equal-value biasing resistors simplify circuit design
• Qualified to AEC-Q101 standards for high reliability
• Totally lead-free and fully RoHS compliant construction
• Halogen and antimony free green device

Applications

• Switching applications requiring integrated base drive
• Automotive electronics due to AEC-Q101 qualification
• General purpose digital logic interface circuits

Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm that the ordering suffix -7-F indicates the specific reel packaging configuration. Ensure compliance with RoHS 3 directives if required by the target market regulations. Check for PPAP capability requirements if used in automotive manufacturing processes.

Selection Notes

Select this component when a single NPN transistor with matched internal biasing resistors is needed. The 2.2 kΩ resistor value suits moderate input drive currents. Verify that the 100 mA output current rating meets the load requirements. Consider the SOT-23 package dimensions for PCB layout constraints.

Part Context

This part belongs to the DDTC123ECA series within the DDTC family of pre-biased transistors. It shares electrical characteristics with other variants in the CA series but differs in resistor values. The ECA suffix denotes the specific 2.2 kΩ resistor configuration. It is distinct from complementary PNP types like the DDTA series.

Replacement Considerations

Direct substitutes include other DDTC123ECA variants from Diodes Incorporated with identical electrical specifications. Cross-manufacturer equivalents must match the 50 V rating, 100 mA current, and SOT-23 package. Verify resistor tolerance and hFE ranges before substitution.