1N5534C

Overview

The 1N5534C is a silicon unidirectional Zener diode manufactured by Microchip Technology. It provides a nominal reference voltage of 14 V with a tight tolerance of 2%. The device operates in the DO-7 (DO-35) glass axial package and supports a power dissipation of 500 mW. Key electrical characteristics include a maximum reverse leakage current of 10 nA, a Zener impedance of 100 Ohms at a test current of 1 mA, and a forward voltage of 1.1 V at 200 mA. It functions within an extended temperature range from -65°C to +175°C junction temperature.

Feature Summary

• Provides stable voltage regulation with low noise characteristics suitable for precision applications
• Features hermetically sealed glass construction ensuring high reliability and environmental resistance
• Offers low reverse leakage current for efficient operation in sensitive circuits

Applications

• Precision voltage reference circuits requiring stable DC levels
• Overvoltage protection stages in electronic systems
• Clamping applications in signal processing paths

Procurement Notes

Verify component authenticity through authorized Microchip Technology distributors or certified suppliers. Confirm that the specific part number matches the required 2% tolerance variant, as other variants exist within the same series. Ensure compliance with project specifications regarding lead-free status and RoHS exemptions, as this component may not meet standard RoHS requirements depending on the manufacturing batch.

Selection Notes

Select the 1N5534C when a precise 14 V reference with 2% accuracy is required. This variant differs from the 1N5534B, which offers 5% tolerance. Consider the DO-7 package constraints for PCB layout and thermal management. Verify that the 500 mW power rating aligns with the expected operating conditions and ambient temperatures of the target application.

Part Context

This component belongs to the 1N5534 series of low-voltage avalanche Zener diodes produced by Microchip Technology. The series includes various tolerance grades, such as the 1N5534B (5%) and 1N5534C (2%). These devices are designed for general-purpose voltage regulation and protection tasks, utilizing robust glass encapsulation to withstand harsh environments while maintaining consistent electrical performance over time.

Replacement Considerations

Direct substitutes include the 1N5534B/TR for applications tolerating 5% voltage variance. Cross-manufacturer equivalents must match the 14 V Zener voltage, 500 mW power rating, and DO-35/DO-7 package dimensions. Verify that alternative sources provide equivalent Zener impedance and leakage current specifications.