DRC9A43E0L

Overview

The DRC9A43E0L is a silicon NPN epitaxial planar transistor with built-in resistors, designed for digital circuits. It features an SSMini3-F3-B package (SOT-490) and operates within an ambient temperature range of -40°C to +85°C. Key electrical ratings include a collector-emitter voltage (VCEO) of 50 V, a collector current (IC) of 80 mA, and a total power dissipation (PT) of 125 mW at 25°C. The device incorporates two internal resistors: R1 and R2, both nominally 4.7 kΩ, yielding a resistance ratio of 1.0. Minimum forward current transfer ratio (hFE) is specified at 20 under standard test conditions.

Feature Summary

• Integrates dual bias resistors (R1/R2 = 1.0) to simplify circuit design and reduce component count in digital switching applications.
• Achieves low collector-emitter saturation voltage (VCE(sat)) to minimize power loss during active switching states.
• Compliant with RoHS directives and halogen-free standards, supporting environmentally conscious manufacturing processes.

Applications

• General-purpose digital logic interface circuits
• Switching applications in office equipment and measuring instruments
• Signal control stages in household appliances

Procurement Notes

Verify the specific ordering suffix E0L against the manufacturer's latest datasheet to confirm packaging details, such as embossed tape-and-reel quantities. Ensure compliance requirements match project specifications, including RoHS and halogen-free status. Confirm that the SSMini3-F3-B footprint aligns with the intended PCB land pattern dimensions provided in the reference drawings.

Selection Notes

Select this component when a compact NPN digital transistor with integrated biasing is required. The 50 V rating and 80 mA current capacity suit low-power signal switching tasks. Consider the 125 mW power dissipation limit and derating curve for thermal management. Verify that the 4.7 kΩ internal resistor values provide appropriate base drive for the target load current and input voltage levels.

Part Context

This part belongs to Panasonic’s DRC series of transistors with built-in resistors. It serves as the NPN counterpart to the PNP DRA9A43E model. The series utilizes the SSMini3 package family, offering space-saving solutions for modern electronic devices requiring high-density mounting and simplified peripheral circuitry.

Replacement Considerations

Direct functional substitutes within the same package and electrical specification should be sourced from official cross-reference lists. Verify pinout compatibility and absolute maximum ratings before substitution. Generic replacements may differ in hFE ranges or saturation voltages, potentially affecting circuit performance.

FAQ

What are the nominal values of the internal resistors?

Both internal resistors, R1 and R2, have a nominal value of 4.7 kΩ, resulting in a resistance ratio of 1.0.

What is the maximum operating ambient temperature?

The maximum operating ambient temperature (Topr) is +85°C.

Is this component suitable for automotive safety applications?

No. The datasheet specifies general applications only. Use in automotive safety or medical devices requires separate agreement and special qualification documents.