DDTC123EUA-7-F

Overview

The DDTC123EUA-7-F is an NPN pre-biased small signal surface mount transistor from Diodes Incorporated, housed in a SOT-323 package. It features built-in biasing resistors with nominal values of R1 = 2.2 kΩ and R2 = 2.2 kΩ. The device supports a supply voltage (VCC) of 50 V and a continuous collector current (IC) of 100 mA. Electrical characteristics include a minimum DC current gain (hFE) of 20 at VO = 5V and IO = 20mA, and a transition frequency (fT) of 250 MHz. Power dissipation is rated at 200 mW, with an operating temperature range spanning -55°C to +150°C.

Feature Summary

• Epitaxial planar die construction for reliable performance
• Integrated base and emitter biasing resistors simplify circuit design
• Qualified to AEC-Q101 standards for high reliability applications
• Totally lead-free and fully RoHS compliant with halogen and antimony free green device packaging

Applications

• Automotive electronic systems requiring AEC-Q101 qualified components
• General purpose switching and amplification circuits
• Digital logic interface and level shifting applications

Procurement Notes

Verify the specific ordering suffix '-7-F' confirms the standard 3,000 units per reel tape and reel packaging configuration. Ensure compliance requirements match project specifications, as this part is marked AEC-Q101 compliant. Confirm that the 'N04' marking code aligns with the required date code and traceability documentation for your manufacturing process.

Selection Notes

Select this component when a single NPN digital transistor with equal base and emitter resistors is required. The 2.2 kΩ resistor values provide a specific input current characteristic suitable for standard logic interfaces. Consider the SOT-323 footprint constraints and the 100 mA current limit against load requirements. Verify thermal management needs given the 200 mW power dissipation rating in the specified package.

Part Context

This part belongs to the DDTC (R1 = R2 Series) UA family of NPN pre-biased transistors. It shares the same electrical and thermal characteristics as other variants in the series but differs by its specific 2.2 kΩ internal resistor values. Complementary PNP types are available under the DDTA designation within the same product line.

Replacement Considerations

Direct substitutes within the same manufacturer's portfolio include other parts from the DDTC123EUA series if resistor tolerances or specific marking codes differ. Cross-manufacturer replacements must match the SOT-323 package, 50 V VCC rating, 100 mA IC limit, and equivalent 2.2 kΩ internal resistance configuration.

FAQ

What is the typical input current for the DDTC123EUA-7-F?

The typical input current (Il) is 3.8 mA when the input voltage (VI) is 5V.

Is the DDTC123EUA-7-F suitable for automotive applications?

Yes, the device is qualified to AEC-Q101 standards for high reliability and is PPAP capable, making it suitable for automotive electronics.

What is the maximum junction-to-ambient thermal resistance?

The thermal resistance from junction to ambient air (RθJA) is 625 °C/W when mounted on an FR-4 PC board with the minimum recommended pad layout.