1N4753A

Overview

The onsemi 1N4753A is a single general-purpose Zener diode with a nominal voltage of 36 V and a maximum power dissipation of 1 W. It utilizes the DO-41 through-hole package with two pins. Key electrical parameters include a test current of 7 mA, a maximum Zener impedance of 50 Ω, and a maximum reverse leakage current of 5 μA. The device offers a voltage tolerance of ±5% and operates within a temperature range of -65°C to +200°C.

Feature Summary

• Provides stable voltage regulation at a nominal 36 V level for circuit protection and reference applications.
• Capable of handling up to 1 W of power dissipation in a standard axial leaded package.
• Features low reverse leakage current to minimize standby power loss in high-impedance circuits.

Applications

• Voltage reference sources in analog signal processing circuits
• Overvoltage protection for sensitive semiconductor components
• Clamping circuits in power supply output stages

Procurement Notes

Verify the specific manufacturer suffix and packaging configuration when sourcing, as variations exist between distributors. Confirm RoHS compliance status and ensure the supplier provides official datasheets matching the exact part number variant to guarantee parameter consistency. Cross-reference ordering codes carefully to avoid discrepancies in testing conditions or tolerance grades.

Selection Notes

Select this component for designs requiring a precise 36 V reference point with moderate power handling capabilities. Ensure the operating environment stays within the specified thermal limits to maintain stability. Consider the 50 Ω impedance characteristic when designing for dynamic load changes. Verify that the DO-41 footprint aligns with the PCB layout constraints before finalizing the bill of materials.

Part Context

This device belongs to the 1N47 series of silicon Zener diodes, widely used for general voltage regulation tasks. The 1N4753A specifically targets the 36 V segment of this family. It serves as a fundamental discrete semiconductor component for maintaining steady DC levels in electronic systems where integrated regulators are unsuitable due to cost or complexity.

Replacement Considerations

Equivalent parts from other manufacturers include Microchip's 1N4753A/TR and Taiwan Semiconductor's 1N4753AHA0G. These alternatives share identical nominal voltage and power ratings but may differ slightly in leakage current specifications or maximum operating temperatures. Verify pinout compatibility and package dimensions before substitution.