1N4755G

Overview

The Taiwan Semiconductor 1N4755G is a silicon planar Zener voltage regulator diode housed in a DO-41 axial leaded package. It provides a nominal Zener voltage of 43V with a standard tolerance of ±5%. The device supports a maximum power dissipation of 1W and operates within a junction temperature range of -65°C to +200°C. Key electrical characteristics include a test current of 6mA, a maximum Zener impedance of 70Ω at the test current, and a maximum leakage current of 5µA at a reverse voltage of 32.7V.

Feature Summary

• Hermetically sealed glass compression bonded construction
• Pure tin plated leads solderable per J-STD-002
• RoHS compliant manufacturing process

Applications

• Low voltage stabilizers or voltage references
• Adapters
• Lighting applications
• On-board DC/DC converters

Procurement Notes

Verify the specific part number against the manufacturer's datasheet to confirm the exact Zener voltage and tolerance requirements for your circuit design. Ensure that the thermal management strategy accounts for the specified junction-to-ambient thermal resistance when operating near maximum power dissipation limits. Confirm compliance with RoHS standards if required by your assembly specifications.

Selection Notes

Select this component for through-hole applications requiring a stable 43V reference point. The DO-41 package offers robust mechanical stability for general-purpose circuits. Consider the ±5% voltage tolerance when designing precision regulation stages. Evaluate the thermal performance based on the expected ambient temperature and power dissipation conditions to ensure reliable long-term operation.

Part Context

This component belongs to the 1N4728G–1N4758G series from Taiwan Semiconductor, covering a wide Zener voltage range from 3.3V to 56V. All devices in this series share the same DO-41 hermetically sealed glass package and 1W power rating. The 'G' suffix indicates the standard commercial grade with ±5% voltage tolerance.

Replacement Considerations

Compatible substitutes include other manufacturers' 1N4755 variants in the DO-41 package, such as those from Microchip or onsemi, provided they meet the 43V nominal voltage, 1W power rating, and ±5% tolerance specifications.