DDC144EU-7

Overview

The DDC144EU-7 is a dual NPN pre-biased small signal transistor from Diodes Incorporated, housed in an SOT-363 surface-mount package. It features built-in biasing resistors with R1 and R2 values of 47 kΩ each. The device supports a maximum collector-emitter voltage (VCEO) of 50 V and a continuous collector current (IC) of 100 mA. Electrical characteristics include a minimum DC current gain (hFE) of 68 at 5 mA and 5 V, and a gain-bandwidth product (fT) of 250 MHz. Total power dissipation is rated at 200 mW, with an operating temperature range spanning -55°C to +150°C.

Feature Summary

• Dual NPN configuration with integrated biasing resistors for simplified circuit design
• Epitaxial planar die construction utilizing lead-free materials
• Compact SOT-363 surface-mount packaging suitable for space-constrained applications

Applications

• General-purpose switching circuits requiring dual NPN logic control
• Driver stages for low-power digital loads
• Signal buffering and level shifting in compact electronic modules

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation before procurement. The base part number DDC144EU-7 may differ from lead-free compliant versions which typically require an additional suffix such as '-F'. Confirm RoHS compliance status and packaging quantity directly with the supplier or official datasheet notes to ensure alignment with project requirements.

Selection Notes

Select this component when a dual NPN pre-biased transistor is required within a 50 V and 100 mA operational envelope. Ensure the 47 kΩ internal resistor values match the target drive interface. Verify that the SOT-363 footprint aligns with the PCB layout constraints and that the thermal dissipation capabilities meet the ambient operating conditions.

Part Context

This component belongs to the DDC series of NPN pre-biased transistors manufactured by Diodes Incorporated. The series utilizes epitaxial planar technology and offers complementary PNP types under the DDA designation. These devices are designed for surface-mount assembly, providing a compact solution for integrating multiple discrete functions into a single package.

Replacement Considerations

Direct substitutes include DDC144EU-7-F for lead-free compliance. Cross-brand equivalents such as MUN5213DW1T1G or UMH2NTN may be considered if pinout and electrical parameters align with the original specifications.