DDTA144TUA-7-F

Overview

The DDTA144TUA-7-F is a PNP pre-biased transistor from the R1-only series, housed in an SOT-323 package. It features a built-in base resistor (R1) with a nominal value of 47 kOhms 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 and VCE = -5V, and a gain-bandwidth product (fT) of 250 MHz. Power dissipation is rated at 200 mW, with an operating temperature range spanning from -55°C to +150°C.

Feature Summary

• Epitaxial planar die construction for reliable performance
• Integrated single biasing resistor (R1 only) simplifies circuit design
• Totally lead-free and fully RoHS compliant manufacturing
• Halogen and antimony free "Green" device composition

Applications

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

Procurement Notes

Verify component authenticity by checking the marking code against the official datasheet table. Confirm the date code key matches the production year and month. Ensure compliance requirements align with specific regional directives such as RoHS 3 or REACH standards before finalizing procurement orders.

Selection Notes

Select this component when a PNP configuration with a 47 kOhm base resistor is required. Verify that the -50 V voltage rating and -100 mA current capacity meet the circuit demands. Consider the SOT-323 package dimensions for PCB layout constraints and ensure thermal management accommodates the 200 mW power dissipation limit.

Part Context

This part belongs to the DDTA144 series within the broader DDTA family of pre-biased transistors. It shares the same electrical ratings and package type as other variants in the UA suffix group but differs specifically in its internal resistor value. The complementary NPN version is available under the DDTC144TUA designation.

Replacement Considerations

Direct functional substitutes include other DDTA144 series parts with identical electrical specifications but different packaging suffixes, such as DDTA144TCA-7-F (SOT-23). Cross-referencing pinouts and absolute maximum ratings is essential when substituting components from different manufacturers.