1N5247CE3

Single Zener Diodes Overview

The Microchip Technology 1N5247CE3 is a single silicon Zener diode housed in a DO-204AH (DO-35) glass axial-lead package. It features a nominal Zener voltage of 17 V with a tolerance of ±2% and a maximum power dissipation of 500 mW. The device operates within a temperature range of -65 °C to +200 °C, has a reverse leakage current of 100 nA, and a Zener impedance of 19 Ohms at a test current of 7.4 mA. It is RoHS compliant and hermetically sealed.

Single Zener Diodes Feature Summary

• Provides precise voltage regulation with tight ±2% tolerance for stable reference applications.
• Utilizes a hermetically sealed glass axial-lead construction for environmental durability.
• Supports extended operating temperatures up to +200 °C for high-reliability environments.

Single Zener Diodes Applications

• Voltage regulation circuits requiring stable DC references
• Overvoltage protection in sensitive electronic systems
• High-temperature industrial control equipment

Single Zener Diodes Procurement Notes

Verify the specific suffix 'CE3' confirms RoHS compliance and lead-free status as per Microchip specifications. Ensure the DO-35 package dimensions match the target PCB footprint. Confirm that the ±2% tolerance variant meets the circuit's precision requirements compared to standard 5% or 10% versions available in the same series.

Single Zener Diodes Selection Notes

Select this component when a 17 V reference with high precision (±2%) is required in a through-hole axial package. Consider the 500 mW power rating and +200 °C max junction temperature for thermal management. Compare against other manufacturers' 1N5247 equivalents if supply chain diversity is needed, ensuring electrical parameters like impedance and leakage remain compatible.

Single Zener Diodes Part Context

This part belongs to the widely used 1N52xx series of 0.5 W Zener diodes. The 'C' prefix typically denotes tighter tolerance variants, while 'E3' indicates environmental compliance. It serves as a fundamental discrete semiconductor component for basic analog signal conditioning and power supply stabilization tasks across various industries.

Single Zener Diodes Replacement Considerations

Direct substitutes include 1N5247B from onsemi or generic 1N5247 parts from other vendors, provided they meet the ±2% tolerance and DO-35 package constraints. Verify that replacement parts maintain the same 17 V nominal voltage and 500 mW power rating to ensure circuit compatibility.

Single Zener Diodes FAQ

What is the Zener impedance of the 1N5247CE3?

The Zener impedance is specified as 19 Ohms at a test current of 7.4 mA.

Does the 1N5247CE3 support high-temperature operation?

Yes, it is rated for a maximum operating temperature of +200 °C.