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The DDTC123TCA-7-F is an NPN pre-biased transistor from the R1-only series, housed in a SOT23 package. It features a built-in base resistor (R1) of 2.2 kΩ with ±30% tolerance. The device supports a maximum collector-emitter voltage (VCEO) and collector-base voltage (VCBO) of 50 V, with a continuous collector current rating of 100 mA. Power dissipation is rated at 200 mW, and the junction-to-ambient thermal resistance is 625 °C/W. The DC current transfer ratio (hFE) ranges from 100 to 600 at IC = 1 mA, VCE = 5 V. Operating temperature spans -55°C to +150°C.
Verify the specific ordering suffix against official Diodes Incorporated documentation to confirm packaging details and availability status. Confirm that the component meets all required environmental compliance standards for the target application before finalizing procurement orders.
Select this component when a single integrated base resistor is sufficient for the biasing requirements. Ensure the 2.2 kΩ input resistance aligns with the driving source impedance. Verify that the 50 V voltage rating and 100 mA current capacity exceed the maximum expected operating conditions.
This part belongs to the DDTC (R1-only Series) CA family manufactured by Diodes Incorporated. It serves as the NPN counterpart to the DDTA PNP series. The marking code for this specific model is N03 on the SOT23 package.
Direct substitutes within the same manufacturer's R1-only series include DDTC113TCA-7-F and DDTC143TCA-7-F. These alternatives share the same SOT23 package and electrical characteristics but differ in their built-in base resistor values.