DDTC115TCA-7-F

Overview

The DDTC115TCA-7-F is an NPN pre-biased transistor from the R1-only series, housed in a surface-mount SOT23 package. It integrates a single built-in biasing resistor (R1) with a nominal value of 100 kΩ and a tolerance of ±30%. The device supports a maximum collector-emitter voltage (VCEO) of 50 V and a continuous collector current (IC) of 100 mA. Electrical characteristics include a DC current transfer ratio (hFE) ranging from 100 to 600 at IC = 1mA, VCE = 5V, and a gain-bandwidth product (fT) of 250 MHz. Power dissipation is rated at 200 mW, with an operating temperature range spanning -55°C to +150°C.

Feature Summary

• Integrates a single built-in biasing resistor (R1 only) to simplify circuit design.
• Utilizes epitaxial planar die construction for reliable performance.
• Comes in a compact SOT23 surface-mount package suitable for automated assembly.

Applications

• General-purpose switching applications
• Driver circuits for low-power loads
• Logic level translation interfaces

Procurement Notes

Verify the specific ordering suffix '-7-F' corresponds to the standard 3,000-unit reel packaging configuration. Confirm that the component meets RoHS 3 compliance requirements if restricted substances are mandated by the target market regulations. Ensure the supplier provides traceability documentation consistent with Diodes Incorporated manufacturing standards.

Selection Notes

Select this component when a high-value base resistor (100 kΩ) is required for NPN switching. Compare against other R1-only variants like DDTC114TCA or DDTC123TCA if different input resistance values better match the driving source impedance. Verify that the 200 mW power dissipation rating accommodates the thermal environment of the final application.

Part Context

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 pre-biased transistors. The 'CA' designation indicates the specific SOT23 package variant and marking code structure used for this generation of components.

Replacement Considerations

Direct functional substitutes within the same series include DDTC114TCA-7-F (10 kΩ) or DDTC123TCA-7-F (2.2 kΩ), provided the input resistance difference is acceptable for the circuit design. Cross-series replacements require verification of pinout compatibility and electrical parameter alignment.

FAQ

What is the function of the internal resistor in the DDTC115TCA?

The DDTC115TCA contains a single built-in biasing resistor (R1) connected to the base terminal. This eliminates the need for an external base resistor in switching applications.

What is the typical DC current gain (hFE) for this device?

The DC current transfer ratio (hFE) typically ranges from 100 to 600 when tested at a collector current of 1 mA and a collector-emitter voltage of 5 V.

Is this component suitable for automotive applications?

While the standard DDTC115TCA-7-F is not explicitly listed as AEC-Q101 qualified, the related DDTC143TCAQ variant is specified for automotive applications requiring specific change control and PPAP capability.