1N4748AP-TP

Overview

The MCC 1N4748AP-TP is a single silicon Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 22 V with a tolerance of ±5%. The device is rated for a maximum power dissipation of 1 W and operates within a temperature range of -65°C to +150°C junction temperature. Key electrical characteristics include a maximum reverse leakage current of 100 nA at the specified test conditions and a Zener impedance of 23 Ohms. The component utilizes a DO-41 axial through-hole package, ensuring compatibility with standard PCB layouts requiring robust thermal performance and reliable long-term operation in electronic circuits.

Feature Summary

• Provides stable voltage regulation using a single silicon Zener junction structure
• Engineered for high-temperature operation up to 150°C junction temperature
• Utilizes a plastic encapsulated DO-41 axial leaded package for mechanical stability

Applications

• Voltage reference circuits requiring precise 22 V levels
• Overvoltage protection stages in power supply inputs
• Clamping applications in signal conditioning paths

Procurement Notes

Verify the specific suffix AP against the manufacturer's latest datasheet to confirm exact testing parameters and compliance status. Ensure the procurement channel sources genuine Micro Commercial Components products to avoid counterfeit devices. Confirm that the DO-41 package dimensions match the target PCB footprint requirements before finalizing orders. Check for any recent Product Change Notifications (PCNs) that may affect material composition or manufacturing location.

Selection Notes

Select this component when a 1 W power rating and 22 V regulation point are required in a through-hole configuration. Compare the 23 Ohm Zener impedance against circuit sensitivity requirements to ensure adequate regulation under varying load currents. Consider the ±5% voltage tolerance for precision applications where tighter specifications might necessitate alternative series. Evaluate the thermal resistance of the DO-41 package relative to the expected ambient operating conditions.

Part Context

This part belongs to the 1N47xx series of 1-watt Zener diodes manufactured by Micro Commercial Components. The series offers a wide range of voltage options from 3.3 V to 100 V, all sharing similar packaging and power handling characteristics. The AP suffix typically denotes specific testing criteria or binning standards applied during production. This series is widely used in general-purpose electronics due to its balance of performance, cost, and availability in standard axial packages.

Replacement Considerations

Publicly confirmed substitute part numbers for this specific MCC variant were not identified in the provided source data. Cross-referencing with other manufacturers requires verifying identical Zener voltage, power dissipation, impedance, and package type.