1N4750AGE3

Overview

The 1N4750AGE3 is a single silicon Zener diode manufactured by Microchip Technology, designed for voltage regulation applications. It features a nominal Zener voltage of 27 V with a standard tolerance of ±5%. The device supports a power dissipation of 1 W and operates within an extended temperature range from -65 °C to +175 °C. Packaged in the axial DO-41 leaded format, it exhibits a maximum reverse leakage current of 100 nA and a Zener impedance of 35 Ohms at a test current of 9.5 mA.

Feature Summary

• Glass passivated die construction ensures stability against mechanical stress and chemical corrosion.
• Plastic case material provides UL flammability classification rating 94V-0 for enhanced safety.
• Low inductance design minimizes switching noise during high-frequency operation.
• Axial leads are solderable per MIL-STD-202 Method 208 for reliable through-hole mounting.

Applications

• Voltage reference circuits requiring stable 27 V potential
• Overvoltage protection stages in power supply inputs
• Clamping applications in signal conditioning paths

Procurement Notes

Verify the specific manufacturer source when sourcing this component, as multiple vendors produce the 1N4750A series. Confirm that the suffix 'e3' denotes lead-free compliance and RoHS adherence according to the supplier's documentation. Ensure the package matches the DO-41 axial form factor required by your PCB layout. Cross-reference datasheets to confirm thermal resistance values if operating near the upper temperature limit.

Selection Notes

Select this component when a robust 1 W Zener diode is needed for general-purpose regulation. The wide operating temperature range up to 175 °C makes it suitable for harsh environments. Compare the 35 Ohm impedance against lower-impedance alternatives if tighter voltage regulation under varying load currents is critical. Verify that the 5% tolerance meets the circuit's precision requirements without needing trimming.

Part Context

This part belongs to the widely recognized 1N47xx series of 1 Watt Zener diodes. The series covers a broad voltage range from 3.3 V to 100 V, offering designers a standardized selection for various regulation needs. The 1N4750 variant specifically targets the 27 V segment, providing a common reference point in industrial and consumer electronics designs.

Replacement Considerations

Equivalent parts include the 1N4750A (standard version) and 1N4750AGe3/TR (tape and reel packaging). Other manufacturers such as onsemi and Micro Commercial Components offer compatible 1N4750A devices with identical electrical specifications and DO-41 packaging.