DDTC124EUAQ-7-F

Overview

The DDTC124EUAQ-7-F is an NPN pre-biased small signal surface mount transistor manufactured by Diodes Incorporated. It features built-in biasing resistors with a nominal value of 22 kOhms for both R1 and R2. The device operates with a maximum supply voltage (VCC) of 50 V and a continuous collector current (IC) of 100 mA. Power dissipation is rated at 200 mW, with a transition frequency (fT) of 250 MHz. It is housed in an SOT-323 package and qualified to AEC-Q101 standards for automotive applications.

Feature Summary

• Epitaxial planar die construction with built-in biasing resistors where R1 equals R2
• Qualified to AEC-Q101 standards for high reliability and PPAP capable
• Totally lead-free and fully RoHS compliant with halogen and antimony free green device characteristics

Applications

• Automotive interface driving circuits
• Inverter control logic
• General purpose switching applications requiring integrated biasing

Procurement Notes

Verify the specific ordering suffix to confirm packaging quantity and reel size. The -7-F suffix indicates a 3,000-unit reel on 7-inch tape, while -13-F denotes a 10,000-unit reel on 13-inch tape. Confirm that the component meets the required AEC-Q101 qualification level if used in automotive designs. Ensure the supplier provides traceability documentation consistent with PPAP requirements.

Selection Notes

Select this component when a single NPN transistor with equal base and emitter biasing resistors is required. The 22 kOhm resistor values are suitable for standard logic interface applications. Consider the SOT-323 package dimensions for space-constrained PCB layouts. Verify thermal resistance requirements against the application's ambient temperature conditions.

Part Context

This part belongs to the DDTC (R1 = R2 Series) UA family from Diodes Incorporated. It is the NPN counterpart to the DDTA series. The 'Q' in the part number signifies AEC-Q101 qualification. Other variants in the series differ primarily in resistor values, such as the DDTC123EUA (2.2 kOhm) or DDTC114EUA (10 kOhm).

Replacement Considerations

Direct substitutes include other DDTC124EUA variants from Diodes Incorporated with different packaging options. Cross-manufacturer replacements must match the 50 V rating, 100 mA current, 22 kOhm internal resistors, and SOT-323 footprint. Verify pinout compatibility and electrical parameters before substitution.