1N4745AP-TP

Overview

The 1N4745AP-TP is a single silicon Zener diode manufactured by Micro Commercial Components. It features a nominal Zener voltage of 16 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 junction temperature. Key electrical parameters include a maximum dynamic impedance of 16 Ohms, a forward voltage of 1.2 V at 200 mA, and a reverse leakage current of 5 µA at 12.2 V. It utilizes the DO-41 axial through-hole package.

Feature Summary

• Provides stable voltage regulation with a nominal 16 V Zener breakdown.
• Supports high thermal endurance up to 150°C junction temperature.
• Features low dynamic impedance for consistent performance under varying currents.

Applications

• Voltage reference circuits requiring precise 16 V levels.
• Overvoltage protection in DC power supply lines.
• Clamping applications in signal processing stages.

Procurement Notes

Verify RoHS3 compliance status directly with the manufacturer or authorized distributors, as environmental certifications can vary by production batch. Confirm the specific packaging format (Reel or Cut Tape) required for your assembly line equipment before ordering. Ensure the supplier provides valid traceability documentation for quality assurance purposes.

Selection Notes

Select this component when a standard 1W axial Zener diode is required for general-purpose regulation. The ±5% tolerance offers tighter precision than standard variants. Verify that the operating environment stays within the specified -65°C to +150°C junction temperature range to ensure long-term reliability and prevent thermal degradation.

Part Context

This part belongs to the 1N4745 series of Zener diodes produced by Micro Commercial Components. It shares the same electrical specifications as industry-standard equivalents but is packaged in the DO-41 axial leaded format. The AP suffix typically denotes specific manufacturing attributes or packaging variations defined by MCC.

Replacement Considerations

Standard equivalents include the generic 1N4745A from manufacturers such as onsemi or Microchip Technology. These parts share identical 16 V, 1 W, and DO-41 specifications. Verify pinout compatibility and thermal characteristics before substituting in existing designs.