DDTA114YCA-7

Overview

The DDTA114YCA-7 is a PNP pre-biased transistor from the DDTA (R1≠R2 SERIES) CA family, manufactured by Diodes Incorporated. It integrates an NPN Darlington transistor with built-in biasing resistors in a surface-mount SOT23 package. Key electrical parameters include a maximum collector-emitter voltage of -50 V and a continuous collector current of -100 mA. The device features a base resistor (R1) of 10 kΩ and an emitter resistor (R2) of 47 kΩ. It operates within a temperature range of -55°C to +150°C, dissipates up to 200 mW of power, and has a transition frequency of 250 MHz.

Feature Summary

• Integrates a single NPN Darlington transistor with two internal biasing resistors for simplified circuit design.
• Utilizes epitaxial planar die construction for reliable performance in surface-mount applications.
• Compliant with RoHS directives and halogen/antimony-free manufacturing standards.

Applications

• General-purpose switching circuits requiring integrated biasing.
• Driver stages for relays, solenoids, or small loads.
• Logic level translation and interface buffering between microcontrollers and peripheral devices.

Procurement Notes

Verify the specific ordering suffix against official documentation, as variations such as -7-F may exist. Confirm that the required packaging format matches the available reel sizes. Ensure compliance with environmental regulations relevant to your region before finalizing procurement.

Selection Notes

Select this component when a PNP digital transistor with a 10kΩ input resistor and 47kΩ emitter resistor is required. Verify that the -50V voltage rating and -100mA current capacity meet the load requirements. Consider the SOT23 package dimensions for PCB layout constraints.

Part Context

This part belongs to the DDTA series of pre-biased transistors designed for high-density mounting. It serves as a complementary counterpart to the DDTC NPN series. The 'CA' designation indicates the specific resistor ratio configuration within the product line.

Replacement Considerations

Direct substitutes within the same series include DDTA114WCA (10kΩ/4.7kΩ). For different resistor ratios, evaluate DDTA123JCA or DDTA143ZCA. Ensure any replacement maintains the SOT23 package and PNP polarity.