DDTA115TKA-7-F

Overview

The DDTA115TKA-7-F is a PNP pre-biased small signal surface mount transistor from the DDTA (R1-only series) by Diodes Incorporated. It features an epitaxial planar die construction in an SC-59 package. Key electrical parameters include a collector-emitter voltage of -50 V, a continuous collector current of -100 mA, and power dissipation of 200 mW. The device incorporates a built-in base resistor with a nominal value of 100 kΩ. DC current gain ranges from 100 to 600 at IC = -1mA, VCE = -5V, with a typical gain-bandwidth product of 250 MHz.

Feature Summary

• Integrates a single biasing resistor directly with the transistor die to reduce printed circuit board space and simplify circuit design.
• Utilizes epitaxial planar die construction for reliable performance in surface mount applications.
• Manufactured using lead-free plating and compliant molding compounds to meet environmental standards.

Applications

• General-purpose switching circuits requiring compact footprint solutions.
• Driver stages for logic interfaces where external biasing components are undesirable.
• Low-power analog signal processing applications within specified voltage limits.

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct packaging and compliance status. Confirm that the component meets the required RoHS and halogen-free specifications for the target assembly process. Cross-reference the date code and marking information to validate manufacturing origin and authenticity before procurement.

Selection Notes

Select this component when a PNP configuration with a fixed 100 kΩ base resistor is required. Ensure the operating voltage does not exceed the -50 V collector-emitter rating. Consider the thermal resistance of 625 °C/W and derating curves if ambient temperatures vary significantly from standard conditions. Verify compatibility with the SC-59 footprint during layout.

Part Context

This part belongs to the DDTA R1-only series, which integrates a single resistor into the transistor package. It serves as the PNP counterpart to the DDTC NPN series. The 'KA' suffix indicates the specific case style and pinout configuration defined by Diodes Incorporated for this family of pre-biased transistors.

Replacement Considerations

Direct substitutes within the same series include DDTA113TKA-7-F, DDTA114TKA-7-F, and DDTA125TKA-7-F, provided the base resistor values match the circuit requirements. Complementary NPN alternatives are available in the DDTC series.