DDTC124EUA-7-F

Overview

The DDTC124EUA-7-F is an NPN pre-biased small signal surface mount transistor manufactured by Diodes Incorporated. It features built-in biasing resistors with nominal values of R1 = 22 kΩ and R2 = 22 kΩ, maintaining a resistance ratio of 1:1. The device operates within a supply voltage range up to 50 V and supports a continuous collector current of 100 mA. Electrical characteristics include a minimum DC current gain (hFE) of 56 at 5 mA and a transition frequency (fT) of 250 MHz. Power dissipation is rated at 200 mW, with an operating temperature range from -55°C to +150°C. The component is housed in a SOT-323 package.

Feature Summary

• Integrated dual biasing resistors simplify circuit design by reducing external component count.
• Qualified to AEC-Q101 standards for high reliability in automotive applications.
• Utilizes epitaxial planar die construction for stable performance.
• Compliant with RoHS 3 directives and halogen-free manufacturing requirements.

Applications

• Automotive electronic systems requiring AEC-Q101 qualified components.
• General-purpose switching applications utilizing single NPN configuration.
• Signal processing circuits benefiting from integrated base and emitter biasing.

Procurement Notes

Verify the specific ordering suffix '-7-F' corresponds to the standard 3,000-unit reel packaging format. Confirm that the 'AEC-Q101' marking code 'N17' matches the required automotive grade designation. Ensure compliance with RoHS 3 and halogen-free specifications aligns with project environmental constraints before finalizing procurement orders.

Selection Notes

Select this model when a 22 kΩ input resistor configuration is required for NPN pre-biased applications. Compare against other series members like DDTC114EUA or DDTC144EUA if different resistance values are needed. Verify that the SOT-323 package dimensions fit the target PCB layout constraints. Consider the 250 MHz transition frequency for high-speed switching requirements.

Part Context

This component belongs to the DDTC (R1 = R2 Series) UA family of NPN pre-biased transistors. It shares the same electrical and thermal characteristics as other members in the series, differentiated primarily by their internal resistor values. The complementary PNP type is available under the DDTA series designation.

Replacement Considerations

DDTC124EUAQ-7-F serves as the direct automotive-grade equivalent with identical electrical specifications. Other series members such as DDTC114EUA-7-F or DDTC144EUA-7-F may be considered if different biasing resistance values are acceptable for the application.

FAQ

What are the nominal values for the internal biasing resistors?

The internal biasing resistors R1 and R2 both have a nominal value of 22 kΩ.

Is this component suitable for automotive applications?

Yes, the DDTC124EUA-7-F is qualified to AEC-Q101 standards for high reliability in automotive environments.

What is the maximum power dissipation rating?

The maximum power dissipation is 200 mW when mounted on an FR-4 PC board with minimum recommended pad layout.