1N5527C

Overview

The Microchip Technology 1N5527C is a single Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 7.5 V with a tight tolerance of ±2%. The device operates in the DO-204AH (DO-35) axial through-hole package and supports a maximum power dissipation of 500 mW. Key electrical characteristics include a Zener impedance of 35 Ohms at a test current of 1 mA, a maximum reverse leakage current of 500 nA, and a forward voltage of 1.1 V at 200 mA. It functions within an extended junction temperature range from -65°C to +175°C.

Feature Summary

• Provides precise voltage regulation with a narrow ±2% tolerance band around the 7.5 V nominal point.
• Engineered for high-temperature reliability with an operational junction range extending up to 175°C.
• Utilizes a standard DO-204AH axial leaded package suitable for conventional through-hole mounting processes.

Applications

• Precision voltage reference circuits requiring stable DC levels
• Overvoltage protection stages in sensitive electronic systems
• Voltage clamping applications in signal conditioning paths

Procurement Notes

Verify component authenticity by cross-referencing the manufacturer part number against official Microchip Technology documentation. Confirm that the specific lot markings align with the datasheet specifications. Ensure compliance with RoHS directives if required by the end application. Validate that the DO-204AH package dimensions match the design constraints before finalizing procurement orders.

Selection Notes

Select this component when a highly accurate 7.5 V reference is necessary, as indicated by the strict ±2% tolerance. The low Zener impedance of 35 Ohms suggests suitability for applications demanding stable regulation under varying load conditions. Consider the 500 mW power rating and wide thermal operating range to ensure adequate performance margins in harsh environments compared to lower-grade alternatives.

Part Context

This component belongs to the 1N55xx series of Zener diodes manufactured by Microchip Technology. The series offers various voltage options within the DO-204AH package. The 'C' suffix typically denotes the specific voltage tolerance grade, distinguishing it from other variants like 'A' or 'B' which may have wider tolerances such as ±10% or ±5% respectively.

Replacement Considerations

Publicly confirmed parameter-equivalent substitutes include 1N5527C/TR, 1N5527D, and 1N5527D/TR. Verify that any replacement maintains the same 7.5 V Zener voltage, ±2% tolerance, and DO-204AH package form factor to ensure direct compatibility.