1N4754A

Overview

The Lumimax Optoelectronic Technology 1N4754A is a silicon planar Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 39V with a tolerance of ±5%. The device operates within a power dissipation rating of 1W and maintains a maximum Zener impedance of 60 Ohms. Electrical characteristics are defined at a test current, with a maximum reverse leakage current of 5 µA at 29.7V. The component utilizes a glass passivated junction housed in a JEDEC DO-41 axial leaded package, supporting a junction temperature up to 200°C.

Feature Summary

• Glass passivated junction construction
• Low Zener impedance and low regulation factor
• High temperature soldering capability

Applications

• Voltage regulation circuits
• Reference voltage sources
• Overvoltage protection

Procurement Notes

Verify the manufacturer designation as Lumimax Optoelectronic Technology against standard industry listings, as this part number is widely produced by multiple semiconductor vendors. Confirm that the specific datasheet provided matches the exact lot and revision required for your design. Ensure the DO-41 glass package and electrical parameters align with your circuit requirements before finalizing procurement.

Selection Notes

Select this component when a stable 39V reference is required in through-hole designs. The DO-41 package facilitates manual or automated insertion. Consider the thermal resistance and power derating curves if operating near the maximum junction temperature limit. Verify compatibility with PCB layout constraints for axial leads.

Part Context

This component belongs to the 1N47xxA series of 1W Zener diodes. The 'A' suffix denotes a ±5% voltage tolerance. The series covers a wide range of voltages from 3.3V to 75V, allowing designers to select appropriate breakdown voltages while maintaining consistent packaging and handling characteristics across the product line.

Replacement Considerations

Standard equivalents include the onsemi 1N4754A and Taiwan Semiconductor 1N4754A. These parts share identical JEDEC case outlines and electrical specifications. Verify pinout polarity and thermal performance before substitution.