1N4750A-T

Overview

The Diodes Incorporated 1N4750A-T is a 27V Zener diode with a 1W power dissipation rating and ±5% voltage tolerance. It operates within a temperature range of -65°C to +175°C, featuring a maximum reverse leakage current of 5µA at 20.6V and a Zener impedance of 35Ω at 9.5mA test current. The component utilizes a DO-41 glass axial package with Sn96.5Ag3.5 terminal finish and is supplied in 5K tape and reel packaging.

Feature Summary

• Glass passivated die construction for enhanced reliability
• Lead-free finish compliant with RoHS directives
• Axial leads solderable per MIL-STD-208 standards

Applications

• Voltage regulation circuits
• Overvoltage protection systems
• Reference voltage generation

Procurement Notes

Verify the specific ordering suffix '-T' to confirm tape and reel packaging configuration. Confirm RoHS compliance status and check for any applicable EU Directive exemptions regarding glass or high-temperature solder materials. Ensure lead length requirements are met for thermal derating calculations above 50°C ambient temperature.

Selection Notes

Select this component for applications requiring a 27V reference with standard 5% tolerance. Verify that the operating environment stays within the specified -65°C to +175°C junction temperature range. Consider the 35Ω impedance value for dynamic load requirements and ensure the 1W power dissipation limit is not exceeded under worst-case thermal conditions.

Part Context

This device belongs to the 1N4728A through 1N4761A series of 1.0W Zener diodes manufactured by Diodes Incorporated. The series covers nominal voltages from 3.3V to 75V. The product is marked as Not Recommended for New Design, with DFLZxx series suggested as alternatives.

Replacement Considerations

Diodes Incorporated recommends using the DFLZxx series instead of this part for new designs. Cross-referencing with other manufacturers requires verifying identical voltage, power, and package specifications.