1N4746AP-TP

Overview

The MCC 1N4746AP-TP is a single silicon Zener diode designed for voltage regulation applications. It features an 18 V nominal Zener voltage with a 5% tolerance and operates at a test current of 14 mA. The device dissipates up to 1 W of power and exhibits a maximum Zener impedance of 20 Ohms. It maintains a low reverse leakage current of 5 uA. The component supports a wide operating temperature range from -65 C to +150 C junction temperature. It utilizes the DO-41 axial through-hole package.

Feature Summary

• Provides stable voltage regulation via Zener breakdown characteristics in the reverse bias region.
• Constructed using silicon technology for reliable unidirectional current flow.
• Engineered for high thermal stability across extended industrial temperature ranges.

Applications

• General-purpose voltage reference circuits
• Overvoltage protection stages
• Biasing networks in analog signal processing

Procurement Notes

Verify the specific suffix AP-TP against the manufacturer's latest datasheet to confirm packaging type, such as reel or cut tape, and ensure compliance with RoHS directives. Confirm the exact manufacturing origin and lot traceability requirements before finalizing procurement orders to match project specifications.

Selection Notes

Select this component when a standard 18 V regulation point is required within a through-hole design. Ensure the circuit can handle the specified 1 W power dissipation and that the 20 Ohm impedance aligns with load regulation needs. Verify that the -65 C to +150 C operating range meets environmental constraints.

Part Context

This part belongs to the 1N4746 series of axial leaded Zener diodes manufactured by Micro Commercial Components. It shares the fundamental electrical profile with other industry-standard equivalents but is distinguished by its specific packaging and quality certifications provided by MCC.

Replacement Considerations

Cross-reference with other manufacturers offering the 1N4746 designation, such as onsemi or Vishay, ensuring identical 18 V rating, 1 W power handling, and DO-41 package compatibility.