1N4470D

Single Zener Diodes Overview

The Microchip Technology 1N4470D is a single Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 33 V with a tight tolerance of 1%. The device operates in the DO-41 axial through-hole package and dissipates up to 1.5 W of power. Key electrical characteristics include a maximum reverse leakage current of 50 nA, a Zener impedance of 25 Ohms, and a test current of 7.5 mA. It supports a forward current of 200 mA and functions within an extended temperature range from -65°C to +175°C.

Single Zener Diodes Feature Summary

• Provides precise voltage regulation with 1% tolerance for high-accuracy reference circuits
• Utilizes robust DO-41 axial leaded construction for reliable through-hole mounting
• Engineered for extreme thermal environments with operation up to +175°C

Single Zener Diodes Applications

• Precision voltage reference generation
• Overvoltage protection circuits
• High-reliability industrial control systems

Single Zener Diodes Procurement Notes

Verify the specific suffix D indicates the 1% tolerance variant during procurement. Confirm that the DO-41 package dimensions align with the target PCB footprint. Ensure the 1.5 W power rating accommodates the expected thermal dissipation in the final assembly environment without exceeding junction temperature limits.

Single Zener Diodes Selection Notes

Select this component when a stable 33 V reference is required with strict accuracy constraints. The 1% tolerance distinguishes it from standard 5% variants. Consider the 25 Ohm impedance for noise sensitivity requirements. The wide operating temperature range makes it suitable for harsh industrial or aerospace environments where standard commercial parts may fail.

Single Zener Diodes Part Context

This part belongs to the 1N4470 series of 1.5 W Zener diodes manufactured by Microchip Technology. The series offers various voltage options in the DO-41 package. The 'D' suffix specifically denotes the tighter 1% voltage tolerance compared to the standard 5% tolerance found in other series members like the 1N4470.

Single Zener Diodes Replacement Considerations

• 1N4470C
• JAN1N4470C