DDTC143EE-7-F

Overview

The DDTC143EE-7-F is an NPN pre-biased transistor manufactured by Diodes Incorporated, housed in a SOT523 surface-mount package. It features built-in biasing resistors with equal values (R1 = R2) of 4.7 kΩ nominal. The device supports a maximum supply voltage (VCC) of 50 V and a continuous collector current (IO) of 100 mA. Key electrical characteristics include a minimum DC current gain (hFE) of 20 at VO = 5V and IO = 10mA, and a transition frequency (fT) of 250 MHz. Power dissipation is rated at 150 mW, with an operating temperature range from -55°C to +150°C.

Feature Summary

• Integrates dual biasing resistors (R1=R2) for simplified circuit design
• Utilizes epitaxial planar die construction for reliability
• Compliant with RoHS standards and free of halogen and antimony

Applications

• Interface circuits requiring level shifting or buffering
• Driver applications for small-signal switching
• General-purpose digital logic interfacing

Procurement Notes

Verify the specific ordering suffix '-7-F' corresponds to the standard reel packaging configuration detailed in the manufacturer's documentation. Confirm that the component meets the required environmental compliance standards, specifically RoHS and lead-free specifications, as defined by the supplier's quality definitions. Ensure the procurement channel is authorized to guarantee product authenticity and traceability.

Selection Notes

Select this component when a compact NPN solution with integrated base and emitter resistors is required. The 4.7 kΩ resistor value suits applications needing moderate input drive currents. Verify that the 100 mA output current capability and 50 V breakdown voltage align with the load requirements. Consider the SOT523 footprint constraints during PCB layout planning.

Part Context

This part belongs to the DDTC (R1 = R2 SERIES) EE family from Diodes Incorporated. It is complemented by other variants in the series such as the DDTC123EE and DDTC114EE, which offer different resistance values while maintaining the same SOT523 package and functional architecture.

Replacement Considerations

Direct substitutes within the same series include DDTC123EE-7-F and DDTC114EE-7-F, provided the resistance values match the circuit requirements. Cross-manufacturer equivalents must be verified against the absolute maximum ratings and pinout configuration.