ACDST-70-G

Overview

The Comchip Technology ACDST-70-G is a small signal switching diode housed in an SOT-23 package. It features a maximum reverse voltage of 70 V and a forward current rating of 200 mA. The device supports a peak forward current surge of 500 mA with a power dissipation capacity of 225 mW. Electrical characteristics include a maximum reverse breakdown voltage of 70 V, a forward voltage ranging from 0.715 V to 1.25 V depending on current, and a maximum reverse current of 6 μA at 70 V. The component exhibits a reverse recovery time of 1.5 ns and terminal capacitance of 1.5 pF.

Feature Summary

• Fast switching speed suitable for high-frequency applications
• High mounting capability with strong surge withstand ability
• Compliance with AEC-Q101 qualification standards

Applications

• General purpose signal switching
• High-speed rectification circuits
• Clamping and protection applications

Procurement Notes

Verify the specific datasheet revision (Rev A) against your design requirements. Confirm that the SOT-23 package dimensions and marking codes match your PCB layout specifications. Ensure the supplier provides documentation confirming compliance with RoHS directives and AEC-Q101 standards before finalizing procurement.

Selection Notes

Select this component when a compact SOT-23 footprint is required for low-voltage switching applications. The 70 V reverse voltage rating makes it suitable for low-power signal lines. Consider the 1.5 ns reverse recovery time for high-speed digital or RF circuits where minimal switching loss is critical.

Part Context

This part belongs to the ACDST series of small signal switching diodes manufactured by Comchip Technology. The series includes variants with different reverse voltage ratings, such as the ACDST-99-G. These devices are designed for general-purpose use in consumer electronics and industrial equipment requiring reliable, fast-switching performance in a miniature surface-mount package.

Replacement Considerations

Direct substitutes must match the 70 V reverse voltage, 200 mA forward current, and SOT-23 package. Verify pinout compatibility and electrical parameters like reverse recovery time and forward voltage drop. Generic equivalents may differ in thermal resistance or surge current capabilities.