DCX124EH-7

Overview

The DCX124EH-7 is a complementary NPN/PNP pre-biased small signal transistor manufactured by Diodes Incorporated. It features built-in biasing resistors (R1 = R2 = 22kΩ) and operates within a supply voltage range of ±50V. The device supports a maximum collector current of 100mA and total power dissipation of 150mW at +25°C. Electrical characteristics include a minimum DC current gain (hFE) of 100, a typical gain-bandwidth product (fT) of 250MHz, and an operating temperature range from -55°C to +150°C. It is housed in a compact SOT563 surface-mount package.

Feature Summary

• Complementary NPN and PNP transistors integrated into a single dual configuration
• Built-in biasing resistors simplify circuit design and reduce component count
• Epitaxial planar die construction ensures reliable performance
• Lead-free and fully RoHS compliant with halogen and antimony-free green packaging

Applications

• General-purpose switching applications requiring complementary logic levels
• Driver circuits for low-power loads in consumer electronics
• Signal buffering and level shifting in digital interfaces

Procurement Notes

Verify the specific ordering suffix matches the required tape and reel quantity of 3,000 units per shipment. Confirm that the SOT563 package dimensions align with the target PCB footprint layout. Ensure compliance with moisture sensitivity level 1 requirements during storage and handling processes before soldering.

Selection Notes

Select this component when a matched NPN/PNP pair with identical 22kΩ base resistors is required. The SOT563 package offers space savings compared to discrete solutions. Verify that the 150mW total power dissipation rating accommodates the thermal constraints of the intended application environment without exceeding junction temperature limits.

Part Context

This part belongs to the DCXxxxxH series of complementary pre-biased transistors. It shares the same SOT563 mechanical outline and epitaxial construction as other variants in the family, differing primarily in internal resistor values and marking codes. The 'H' suffix denotes the specific SOT563 package type used for high-density surface mount assembly.

Replacement Considerations

Direct substitutes within the same series include DCX144EH-7, DCX143EH-7, DCX114YH-7, DCX123JH-7, DCX114EH-7, DCX143TH-7, and DCX114TH-7. These alternatives share the same package and general electrical ratings but feature different built-in resistor values or marking codes.