DTD523YE3TL

Overview

The DTD523YE3TL is an NPN digital transistor manufactured by Rohm Semiconductor, housed in a compact SOT-416 (EMT3) surface-mount package. This component integrates bias resistors to simplify circuit design by eliminating the need for external input resistors. It features a leak absorption type configuration with specific internal resistance values: R1 is 2.2 kOhms and R2 is 10 kOhms. The device supports a maximum collector current of 100 mA and operates with a collector-emitter voltage rating of 12 V. Key electrical characteristics include a DC current gain (hFE) minimum of 33 at -10 mA and -5 V, and a transition frequency of 250 MHz. Power dissipation is rated at 150 mW, with an operating temperature range extending up to +150°C.

Feature Summary

• Integrates bias resistors (R1=2.2kΩ, R2=10kΩ) to enable inverter circuit construction without external input components.
• Features leak absorption type architecture designed to manage leakage currents effectively.
• Utilizes a small SOT-416 surface-mount package for efficient space utilization on printed circuit boards.

Applications

• Inverter circuits requiring built-in biasing without external resistors.
• General-purpose switching applications in consumer electronics.
• Interface circuits for microcontrollers and logic gates.

Procurement Notes

Verify the exact ordering suffix against the manufacturer's latest datasheet to ensure correct packaging and specifications. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Check lead times as production cycles may vary. Ensure the supplier provides authentic components from authorized channels to guarantee reliability and performance standards.

Selection Notes

Select this component when an NPN digital transistor with integrated bias resistors is required for space-constrained designs. The 2.2 kOhm input resistor value suits standard logic interface applications. Consider the 12 V voltage rating and 100 mA current capacity for low-power switching tasks. Verify that the SOT-416 package footprint matches your PCB layout constraints and thermal management requirements.

Part Context

This part belongs to Rohm's series of bias resistor built-in transistors, known as digital transistors. These devices combine a single bipolar transistor with internal resistors to reduce board space and assembly costs. The DTD523YE3TL specifically represents the NPN variant within the DTB/DTA/DTC/DTD family, offering standardized performance for general-purpose switching and logic interfacing applications.

Replacement Considerations

Direct substitutes include the DTC123YE3TL (NPN, same package, similar specs) and DTB523YETL (PNP, same package). Cross-reference pinouts and electrical parameters carefully before substitution. Verify that any replacement maintains the same R1/R2 ratio and voltage/current ratings for equivalent circuit performance.