1N4753A

Overview

The SMC Diode Solutions 1N4753A is a silicon planar Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 36 V with a tolerance of ±5%. The device supports a maximum power dissipation of 1 W and operates within a temperature range of -55°C to +150°C junction temperature. Key electrical characteristics include a maximum reverse leakage current of 5 µA at 27.4 V, a Zener impedance of 50 Ohms, and a test current of 7 mA. The component utilizes a DO-41 axial through-hole package.

Feature Summary

• Utilizes silicon planar technology for stable voltage regulation
• Provides precise voltage control with ±5% tolerance
• Supports high thermal stability up to 150°C junction temperature

Applications

• Voltage reference circuits
• Overvoltage protection systems
• Power supply regulation

Procurement Notes

Verify the specific manufacturer part number and datasheet revision before procurement. Confirm that the required package style matches the DO-41 axial leaded format. Ensure the operational environment stays within the specified -55°C to +150°C junction temperature limits. Check for any RoHS compliance requirements relevant to your manufacturing process. Validate that the 1W power rating is sufficient for your circuit's thermal conditions.

Selection Notes

Select this component when a standard 36V regulation point is required in through-hole designs. Consider the 50 Ohm impedance for dynamic load variations. Ensure the 1W power dissipation capability aligns with the expected current draw. Verify compatibility with existing PCB footprints designed for the DO-41 package. Evaluate if the ±5% tolerance meets the precision needs of the application.

Part Context

This component belongs to the widely recognized 1N47xx series of Zener diodes, which are standard industry parts for general-purpose voltage regulation. The 1N4753A specifically targets the 36V segment of this family. It is commonly used in industrial and consumer electronics where reliable, low-cost voltage clamping is necessary. The DO-41 package ensures easy integration into traditional through-hole assembly lines.

Replacement Considerations

Cross-reference with other manufacturers offering the 1N4753A designation, such as Microchip or Vishay, ensuring identical 36V/1W/DO-41 specifications. Verify pinout compatibility and thermal resistance values. Confirm that alternative sources meet the same ±5% voltage tolerance and leakage current standards.