DDTC123YUA-7-F

Overview

The DDTC123YUA-7-F is a single NPN pre-biased transistor manufactured by Diodes Incorporated, housed in an SOT-323 surface-mount package. It integrates biasing resistors with nominal values of R1 = 2.2 kΩ and R2 = 10 kΩ. The device supports a maximum supply voltage (VCC) of 50 V and a continuous collector current (IC) of 100 mA. Key electrical characteristics include a minimum DC current gain (hFE) of 33 at 10 mA output, a transition frequency (fT) of 250 MHz, and a power dissipation rating of 200 mW. Operating temperatures range from -55°C to +150°C.

Feature Summary

• Epitaxial planar die construction for reliable switching performance
• Integrated biasing resistors simplify circuit design by eliminating external components
• Surface mount package optimized for automated assembly processes
• Lead-free and fully RoHS compliant manufacturing

Applications

• General-purpose switching applications
• Driver circuits for relays and solenoids
• Logic level translation interfaces
• Inverter circuits requiring built-in biasing

Procurement Notes

Verify the specific ordering suffix '-7-F' against official Diodes Incorporated documentation to confirm packaging details, specifically the 3,000-unit reel quantity and tape width specifications. Ensure compliance with environmental directives such as RoHS 3 and halogen-free requirements before finalizing procurement orders.

Selection Notes

Select this component when a compact NPN solution with integrated base and emitter-base resistors is required. The 2.2 kΩ input resistor value suits moderate drive currents, while the 10 kΩ emitter resistor aids in leakage suppression. Verify that the 100 mA collector current limit meets the load requirements of the target application.

Part Context

This part belongs to the DDTC (R1≠R2 SERIES) UA family, which features varying internal resistor ratios. Unlike standard transistors, this device combines a BJT with two resistors in a single SOT-323 package, reducing board space and assembly steps compared to discrete resistor-transistor combinations.

Replacement Considerations

Direct substitutes within the same series include DDTC123JUA-7-F (R2=47kΩ) or DDTC113ZUA-7-F (R1=1kΩ), provided the different resistor values are acceptable for the circuit design. Cross-manufacturer equivalents must match the SOT-323 footprint, 50V rating, and 100mA current capability.