1N5355B-AP

Overview

The 1N5355B-AP is a Zener diode manufactured by Micro Commercial Components (MCC). It features an 18 V nominal Zener voltage with a ±5% tolerance. The device has a maximum power dissipation of 5 W and operates within a temperature range of -55°C to 150°C. Key electrical parameters include a reverse leakage current of 500 nA at 13.7 V, a forward voltage of 1.2 V at 1 A, and a maximum impedance of 2.5 Ohms. It utilizes the DO-15 axial through-hole package.

Feature Summary

• Provides stable voltage regulation via Zener breakdown characteristics
• Supports high power dissipation for robust circuit protection
• Operates reliably across extended industrial temperature ranges

Applications

• Voltage reference circuits requiring stable DC levels
• Overvoltage protection in power supply inputs
• Clamping applications in signal conditioning paths

Procurement Notes

Verify the specific suffix AP against official MCC documentation to confirm packaging details and compliance status. Ensure the DO-15 package dimensions match your PCB layout constraints. Cross-reference the manufacturer part number with authorized distributors to confirm current availability and authenticity before procurement.

Selection Notes

Select this component when a 5 W axial Zener diode with 18 V regulation is required. Consider the ±5% tolerance and 2.5 Ohm impedance for precision requirements. Verify that the DO-15 package fits the assembly process and thermal management needs of the target design.

Part Context

This part belongs to the 1N5355 series of 5 Watt Zener regulator diodes produced by Micro Commercial Components. The series covers a wide voltage range from 3.3 V to 200 V. The 1N5355B-AP variant specifically targets applications needing 18 V regulation with standard axial leaded packaging for through-hole mounting.

Replacement Considerations

Equivalent parts include the 1N5355B from other manufacturers such as Motorola or Diodes Incorporated. Verify pinout compatibility and ensure the replacement meets the same 5 W power rating and 18 V Zener voltage specifications.