1N6770R

Overview

The 1N6770R is a silicon planar Zener diode manufactured by Microchip Technology, designed for voltage regulation and reference applications. It utilizes the DO-204AH (DO-41) axial through-hole package. The device features a nominal Zener voltage of 39V with a tolerance of ±5%. It operates within a power dissipation range up to 500mW at ambient temperatures up to +75°C. The component supports a maximum operating junction temperature of +175°C and maintains functionality across an extended temperature range from -65°C to +175°C.

Feature Summary

• Utilizes silicon planar technology for robust voltage regulation performance
• Features a standard axial leaded package suitable for through-hole mounting
• Provides stable Zener voltage characteristics over a wide temperature range

Applications

• Voltage reference circuits requiring stable DC levels
• Overvoltage protection in power supply inputs
• Clamping applications in signal conditioning paths

Procurement Notes

Verify the specific suffix 'R' against the official Microchip datasheet to confirm reel packaging specifications and ensure compatibility with automated assembly equipment. Confirm RoHS compliance status directly with the manufacturer as historical data may vary. Request the latest datasheet revision to validate electrical parameters before finalizing procurement orders.

Selection Notes

Select this component when a 39V regulation point is required in through-hole designs. Ensure the circuit design accounts for the 500mW power dissipation limit and derating requirements above +75°C. Verify that the ±5% voltage tolerance aligns with the precision needs of the target application compared to tighter tolerance alternatives.

Part Context

This part belongs to the standard 1N series of Zener diodes produced by Microchip Technology. These components are widely used in industrial and commercial electronics for basic voltage regulation tasks. The 1N6770R specifically addresses the need for a 39V reference in legacy or high-reliability through-hole systems.

Replacement Considerations

Cross-reference with other manufacturers offering 1N6770 equivalents such as ON Semiconductor or Vishay. Ensure pinout compatibility and thermal characteristics match the original design constraints before substitution.