1N5533D/TR

Overview

The 1N5533D/TR is a Zener diode manufactured by Microchip Technology, designed for voltage regulation applications. It features a nominal Zener voltage of 12V with a 1% tolerance and operates at a test current of 1mA. The device dissipates up to 500mW of power and exhibits a maximum reverse leakage current of 10nA. Its Zener impedance is specified at 100 Ohms. The component utilizes a DO-35 axial through-hole package and supports an operating temperature range from -65°C to +175°C.

Feature Summary

• Provides precise voltage regulation with tight 1% tolerance
• Supports extended industrial temperature ranges up to 175°C
• Features low reverse leakage current for stable operation

Applications

• Precision voltage reference circuits
• Overvoltage protection in sensitive electronics
• Voltage clamping in signal processing paths

Procurement Notes

Verify the specific suffix D/TR against official Microchip documentation to confirm tape-and-reel packaging and exact electrical tolerances. Ensure compatibility with existing board layouts for the DO-35 through-hole form factor. Confirm that the 12V rating aligns with system requirements before finalizing procurement orders.

Selection Notes

Select this component when high precision is required due to its 1% voltage tolerance. The wide thermal range makes it suitable for harsh environments. Verify that the 500mW power dissipation meets the circuit's thermal management needs and that the DO-35 package fits the assembly constraints.

Part Context

This part belongs to the standard 1N55xx series of glass-passivated Zener diodes. It serves as a reliable discrete semiconductor solution for fundamental voltage regulation tasks within Microchip's broader portfolio of passive and active components.

Replacement Considerations

Consult Microchip datasheets for direct equivalents within the 1N553x series. Verify pinout and package dimensions match the DO-35 specification before substituting.