DDTC124GUA-7-F

Overview

The DDTC124GUA-7-F is an NPN pre-biased small signal surface mount transistor manufactured by Diodes Incorporated. It features a built-in biasing resistor (R2) with a nominal value of 22 kOhms, housed in an SOT-323 package. The device supports a collector-emitter voltage (VCEO) of 50 V and a continuous collector current of 100 mA. Power dissipation is rated at 200 mW, with a DC current gain (hFE) minimum of 56 at IC=5mA, VCE=5V. Operating temperature ranges from -55°C to +150°C.

Feature Summary

• Built-in bleeder resistor (R2 only) for simplified circuit design
• Epitaxial planar die construction for reliability
• Lead-free and RoHS compliant manufacturing

Applications

• Switching applications requiring integrated base biasing
• Low-voltage logic interface circuits
• General-purpose pre-biased transistor solutions

Procurement Notes

Verify the specific ordering suffix against official Diodes Incorporated documentation to confirm packaging and compliance status. Ensure the component meets project requirements for moisture sensitivity level and lead-free plating specifications before finalizing procurement decisions.

Selection Notes

Select this component when a single NPN pre-biased transistor with an internal 22k Ohm emitter resistor is required. Compare electrical characteristics such as hFE and breakdown voltages against alternative digital transistors if different resistance values or configurations are needed.

Part Context

This part belongs to the DDTC (R2-ONLY SERIES) UA family from Diodes Incorporated. It is designed as a compact solution for replacing discrete biasing networks in surface-mount designs, offering space savings compared to separate resistors and transistors.

Replacement Considerations

Direct replacements may include other NPN pre-biased transistors with similar R2 values and SOT-323 packaging. Verify pinout compatibility and electrical ratings before substitution.