1N4737A_S00Z

Overview

The onsemi 1N4737A_S00Z is a silicon Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 7.5 V with a tolerance of 5%. The device is rated for a maximum power dissipation of 1 W and operates within a temperature range of -65 °C to +175 °C. It utilizes the DO-41 axial leaded package, which provides hermetic sealing in glass construction. Key electrical characteristics include a maximum dynamic impedance of 4 Ω at a test current of 34 mA and a maximum reverse leakage current of 10 µA.

Feature Summary

• Hermetically sealed glass encapsulation for environmental protection
• Double slug type construction for thermal stability
• Oxide passivated die for enhanced reliability

Applications

• Voltage reference circuits
• Overvoltage protection
• Clamping applications

Procurement Notes

Verify the specific suffix _S00Z against official onsemi documentation to confirm packaging configuration and compliance status. Ensure the component matches the required JEDEC DO-41 mechanical dimensions and hermetic seal specifications for your application environment.

Selection Notes

Select this component when a 7.5 V regulation point is required in a through-hole DO-41 package. Consider the 1 W power rating and high operating temperature limit of 175 °C for demanding thermal environments. Verify that the 5% voltage tolerance meets circuit precision requirements.

Part Context

This part belongs to the standard 1N47xx series of 1 Watt Zener diodes. These devices are widely used in general-purpose electronics for stable voltage references and transient suppression. The 1N4737A variant specifically targets the 7.5 V segment of this extensive voltage lineup.

Replacement Considerations

Compatible substitutes include other manufacturers' 1N4737A parts in DO-41 packages, such as those from Vishay or Microsemi. Ensure equivalent electrical ratings and package compatibility before substitution.