1N4626UR-1

Overview

The Microchip Technology 1N4626UR-1 is a single Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 5.6 V with a tight tolerance of ±2%. The device operates in the SMD/SMT DO-213AA-2 (SOD-80) package and supports a maximum power dissipation of 500 mW. Electrical characteristics include a maximum reverse leakage current of 5 µA and a Zener impedance of 1.4 kΩ at a test current of 250 µA. It is qualified for extended industrial temperature ranges, functioning reliably from -65 °C to +175 °C.

Feature Summary

• Provides precise voltage regulation with a narrow 2% tolerance band around the 5.6 V nominal point.
• Engineered for low-noise performance suitable for sensitive analog signal conditioning circuits.
• Capable of sustained operation across extreme thermal environments ranging from -65 °C to +175 °C.

Applications

• Precision voltage reference sources in measurement instrumentation
• Overvoltage protection stages in communication equipment
• Clamping circuits within aerospace avionics systems

Procurement Notes

Verify the specific suffix UR-1 against official Microchip documentation to confirm surface mount configuration and tape-and-reel packaging details. Ensure compliance with RoHS directives if required by your assembly process. Cross-reference the exact part number with authorized distributors to validate authenticity and traceability records before finalizing procurement orders.

Selection Notes

Select this component when a compact surface mount solution is required for stable 5.6 V regulation. The tight 2% tolerance makes it superior to standard 5% variants for precision applications. Consider the high operating temperature limit for harsh environment deployments where standard commercial grade parts would fail.

Part Context

This component belongs to the 1N46xx series of low-power Zener diodes manufactured by Microchip Technology. These devices are widely utilized in electronic designs requiring reliable voltage clamping or reference generation. The series offers various voltage options packaged in both through-hole and surface mount formats to suit diverse board layout constraints.

Replacement Considerations

Consult official substitution guides for equivalent Zener diodes with matching 5.6 V ratings and compatible SOD-80 footprints. Verify that alternative components meet the same ±2% tolerance and 500 mW power dissipation requirements to ensure circuit performance parity.