1N4986US/TR

Single Zener Diodes Overview

The 1N4986US/TR is a surface-mount Zener diode manufactured by Microchip Technology. It features a nominal Zener voltage of 150 V with a tolerance of ±5%. The device supports a maximum power dissipation of 5 W and operates within an extended temperature range from -65°C to +175°C. Electrical characteristics include a maximum reverse leakage current of 2 µA at 114 V, a forward voltage of 1.5 V at 1 A, and a maximum Zener impedance of 330 Ohms. The component utilizes the D-5B (SQ-MELF,E) package for reliable surface-mount integration.

Single Zener Diodes Feature Summary

• High thermal stability enabling operation in extreme environments up to 175°C
• Robust 5 W power dissipation capability for high-power regulation applications
• Precision voltage regulation with tight ±5% tolerance for critical circuit accuracy

Single Zener Diodes Applications

• Voltage reference circuits requiring stable 150 V levels
• Overvoltage protection stages in industrial power systems
• Clamping applications in aerospace and military electronic assemblies

Single Zener Diodes Procurement Notes

Verify the specific suffix configuration when ordering, as the /TR designation indicates tape-and-reel packaging which differs from bulk variants like the 1N4986US. Confirm RoHS compliance status directly with the manufacturer, as historical data suggests potential non-compliance for certain revisions of this component family. Ensure the supplier provides valid traceability documentation for qualified parts.

Single Zener Diodes Selection Notes

Select this component when a high-voltage, high-power Zener diode is required for surface-mount designs. The 150 V rating suits applications needing precise regulation above standard low-voltage options. Consider the D-5B package dimensions for PCB layout constraints. Evaluate the 330 Ohm impedance against load regulation requirements to ensure adequate performance under varying current conditions.

Single Zener Diodes Part Context

This part belongs to the 1N4986 series of Zener diodes produced by Microchip Technology. It shares core electrical specifications with other package variations such as the through-hole 1N4986 and the leaded 1N4986US. The US suffix typically denotes a specific surface-mount MELF-style package variant designed for automated assembly processes in demanding electronic environments.

Single Zener Diodes Replacement Considerations

The 1N4986US is listed as a parameter-equivalent alternative. Verify pinout compatibility and package footprint differences between the TR reel version and bulk equivalents before substitution.