1N4756G

Overview

The Taiwan Semiconductor 1N4756G is a single-die, hermetically sealed glass Zener diode housed in the DO-41 axial lead package. It provides a nominal Zener voltage of 47V 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. Electrical characteristics include a test current of 5.5mA, a maximum regular impedance of 80Ω at IZT, and a maximum leakage current of 5µA at VR.

Feature Summary

• Hermetically sealed glass construction for environmental protection
• Pure tin plated leads ensuring solderability per J-STD-002 standards
• Oxide passivated die with compression bonded construction
• Corrosion resistant external surfaces

Applications

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

Procurement Notes

Verify the specific ordering suffix (e.g., R0G for reel, A0G for ammo box) against project requirements, as packaging varies by manufacturer code. Confirm RoHS compliance status and date codes upon receipt. Ensure the component meets the required thermal resistance ratings for the intended application environment before finalizing procurement.

Selection Notes

Select this component when a 47V regulation point is required in through-hole designs. The DO-41 package accommodates standard PCB layouts. Consider the 1W power dissipation limit and thermal resistance values during circuit design to ensure operation remains within the specified junction temperature range under all expected load conditions.

Part Context

This part 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 identical mechanical data, including the DO-41 case and pure tin plated leads, while differing primarily in their specific Zener voltage and associated electrical parameters.

Replacement Considerations

Cross-reference with other manufacturers' 1N4756 variants. Verify that substitute parts match the 47V nominal voltage, ±5% tolerance, 1W power rating, and DO-41 package dimensions to ensure physical and electrical compatibility without redesigning the host circuit.

FAQ

What is the maximum regular impedance for the 1N4756G?

The maximum regular impedance (ZZT) is 80Ω, measured at the test current (IZT) of 5.5mA.

How is polarity indicated on the 1N4756G?

Polarity is indicated by a cathode band marked on the glass body of the device.