1N4746AP-AP

Overview

The MCC 1N4746AP-AP is a single silicon Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 18 V with a tolerance of ±5%. The device supports a maximum power dissipation of 1 W and operates within a temperature range of -65 °C to +150 °C. Key electrical parameters include a maximum reverse leakage current of 5 µA, a Zener impedance of 20 Ohms, and a test current of 14 mA. It utilizes a DO-41 axial through-hole package.

Feature Summary

• Provides stable voltage regulation at a nominal 18 V reference level
• Constructed in a hermetically sealed glass axial leaded package
• Capable of handling up to 1 W of total power dissipation

Applications

• Low voltage stabilizers
• Voltage reference circuits
• Protection against overvoltage conditions

Procurement Notes

Verify the specific suffix AP against official Micro Commercial Components documentation to confirm exact manufacturing specifications and compliance status. Ensure the selected variant matches the required thermal and electrical ratings for the intended circuit design before finalizing procurement orders.

Selection Notes

Select this component when a robust 18 V reference is needed in a standard through-hole configuration. Consider the 20 Ohm impedance and 5 µA leakage limits for precision requirements. Verify that the 1 W power rating and 150 °C junction temperature limit align with the system's thermal management capabilities.

Part Context

This part belongs to the 1N4746 series of low voltage regulator diodes manufactured by Micro Commercial Components. These devices are widely used in general-purpose electronics requiring reliable voltage clamping or regulation. The DO-41 package provides a standardized footprint compatible with common PCB layouts.

Replacement Considerations

Cross-reference with other manufacturers offering the 1N4746A specification, such as onsemi or Nexperia, ensuring identical 18 V, 1 W, and DO-41 package compatibility.