DDTC144ECAQ-13-F

Overview

The DDTC144ECAQ-13-F is an NPN pre-biased small signal surface mount transistor from Diodes Incorporated, housed in a SOT23 case. It integrates equal biasing resistors (R1 = R2) with a nominal value of 47 kΩ. The device features epitaxial planar die construction and is qualified to AEC-Q101 standards for automotive applications. Key electrical parameters include a maximum supply voltage (VCC) of 50 V, a continuous collector current (IC) of 30 mA, and a power dissipation (PD) of 200 mW at +25°C. The DC current gain (hFE) has a minimum value of 68 at VO = 5V and IO = 5mA. It operates within a temperature range of -55°C to +150°C.

Feature Summary

• Integrates two equal-value biasing resistors directly with the NPN transistor to simplify circuit design.
• Qualified to AEC-Q101 standards for high reliability in automotive environments.
• Utilizes epitaxial planar die construction for robust performance.
• Compliant with RoHS directives and halogen/antimony-free green device standards.

Applications

• Automotive electronic systems requiring AEC-Q101 qualified components.
• General-purpose switching applications utilizing integrated biasing.
• Driver circuits for low-power loads where simplified base drive is required.

Procurement Notes

Verify that the specific ordering suffix matches the required packaging quantity and reel size. Confirm that the component status is Active for new designs, as some variants may be Not Recommended for New Design (NRND). Ensure compliance with automotive qualification requirements if the application demands AEC-Q101 certification. Check for any Product Change Notifications (PCN) that might affect material or process specifications before finalizing procurement.

Selection Notes

Select this part when an NPN pre-biased transistor with a 47 kΩ resistor ratio is needed in a SOT23 package. The Q suffix indicates AEC-Q101 automotive qualification, while the 13-F suffix denotes a 10,000-unit reel size. Consider the 30 mA collector current limit and 200 mW power dissipation constraints. Verify that the input voltage range (-10V to +40V) suits the control signal levels. Compare against complementary PNP types like the DDTA series if negative logic is required.

Part Context

This component belongs to the DDTC (R1 = R2 Series) CA family of NPN pre-biased transistors. It shares the same electrical and thermal characteristics as standard non-automotive versions but carries specific automotive qualification markings. The 'CA' designation refers to the specific resistor tolerance and marking code configuration. It is functionally equivalent to other parts in the DDTC144ECAQ series, differing primarily in packaging quantities and specific order codes.

Replacement Considerations

Direct substitutes within the same family include DDTC144ECAQ-7-F (3,000 units/reel). For non-automotive applications, DDTC144ECA-13-F is electrically identical but lacks automotive qualification. Complementary PNP devices are available in the DDTA144ECAQ series. Verify pinout compatibility and thermal resistance values when replacing with generic equivalents.