DDTC115GCA-7-F

Overview

The DDTC115GCA-7-F is an NPN pre-biased small signal surface mount transistor manufactured by Diodes Incorporated. It features a built-in biasing resistor (R2 only) with a nominal value of 100 kOhms, housed in an SOT-23 package. The device supports a collector-emitter voltage (VCEO) of 50 V and a continuous collector current of 100 mA, with a power dissipation rating of 200 mW at 25°C. Key electrical characteristics include a minimum DC current gain (hFE) of 82 at IC=5mA and VCE=5V, a transition frequency (fT) of 250 MHz, and a collector cutoff current (ICBO) maximum of 0.5 μA. It operates within a temperature range of -55°C to +150°C.

Feature Summary

• Integrates a single internal biasing resistor (R2) to simplify circuit design and reduce component count.
• Utilizes epitaxial planar die construction for reliable performance in surface mount applications.
• Constructed as a lead-free, halogen-free, and antimony-free RoHS compliant 'Green' device.

Applications

• General-purpose switching applications requiring simplified bias networks.
• Driver circuits for low-power loads where space efficiency is critical.
• Digital logic interface circuits utilizing the integrated resistor for base drive control.

Procurement Notes

Verify that the ordering suffix matches the required packaging configuration. The specified part number indicates a tape and reel quantity of 3000 units. Confirm compliance with environmental standards such as RoHS and REACH requirements specific to the manufacturing date code. Ensure the supplier provides valid traceability documentation for the batch received.

Selection Notes

Select this component when a single NPN pre-biased transistor with a 100 kOhm base resistor is required. Compare the 200 mW power dissipation limit against thermal constraints in the target application. Verify that the 50 V collector-emitter voltage rating exceeds the maximum operating voltage. Consider the SOT-23 footprint dimensions during PCB layout planning.

Part Context

This component belongs to the DDTC115 series of NPN pre-biased transistors from Diodes Incorporated. Variants within the series differ primarily by the nominal value of the integrated R2 resistor, ranging from 10 kOhms to 100 kOhms. All share the same SOT-23 package and core electrical ratings, allowing for pin-compatible substitution based on specific biasing needs.

Replacement Considerations

Direct replacements must match the NPN polarity, SOT-23 package, and 100 kOhm internal resistor value. Verify that alternative sources maintain the same 50 V VCEO and 100 mA IC ratings. Check for equivalent thermal resistance and hFE specifications to ensure circuit performance consistency.