1N4699

Overview

The onsemi 1N4699 is a single silicon Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 12 V with a tolerance of 5%. The device supports a maximum power dissipation of 500 mW and operates within a temperature range of -65°C to +200°C. Packaged in the DO-35 axial leaded format, it includes two pins for surface or through-hole mounting. The component exhibits a maximum reverse leakage current of 1 μA at specified conditions and utilizes a standard Zener technology suitable for general-purpose circuit protection.

Feature Summary

• Provides stable voltage reference using single-element silicon construction
• Supports high thermal operation up to 200°C junction temperature
• Utilizes robust DO-35 axial package for reliable mechanical mounting

Applications

• Voltage regulation in low-power circuits
• Overvoltage protection for sensitive components
• Reference voltage generation in analog signal processing

Procurement Notes

Verify the specific manufacturer designation when sourcing, as the 1N4699 part number is utilized by multiple semiconductor producers including Microchip Technology and Central Semiconductor. Confirm that the selected unit matches the required 12 V nominal voltage and 500 mW power rating specifications. Ensure the DO-35 package style aligns with the intended PCB layout requirements before finalizing procurement orders.

Selection Notes

Select this component for designs requiring a 12 V reference point with moderate power handling capabilities. The wide operating temperature range makes it suitable for industrial environments. Consider the axial lead configuration for applications where through-hole mounting is preferred over surface mount alternatives. Verify compatibility with existing circuit impedance levels to ensure proper regulation performance under varying load conditions.

Part Context

This component belongs to the standard 1N469x series of Zener diodes, widely recognized for their reliability in discrete semiconductor applications. The 1N4699 specifically targets the 12 V segment of this family. It serves as a fundamental building block for basic electronic circuits requiring simple voltage clamping or regulation functions without complex active components.

Replacement Considerations

Equivalent parts include the MMSZ4699 (surface mount variant) and MM1Z4699. Cross-reference with 1N4699-1E3/TR from Microchip Technology for identical electrical characteristics. Verify package compatibility when substituting axial leads with surface mount options.