1N4768A

Overview

The Microchip Technology 1N4768A is a temperature-compensated Zener reference diode designed for precision voltage regulation applications. It features a nominal Zener voltage of 9.1 V with a tight tolerance of ±5%. The device operates within a low current range, typically tested at 0.5 mA or 1.0 mA, and supports a maximum DC power dissipation of 500 mW. Constructed with metallurgically bonded double-plug technology, it ensures stability across an operating temperature range of -55°C to +100°C. The component utilizes a DO-35 axial through-hole package.

Feature Summary

• Temperature compensated design for stable reference performance
• Metallurgically bonded double-plug construction for reliability
• Low current operation optimized for precision regulation

Applications

• Precision voltage reference circuits
• Temperature compensated voltage regulation
• High-stability power supply designs

Procurement Notes

Verify the specific suffix (e.g., -1) against official datasheets to confirm exact electrical tolerances and testing currents. Confirm RoHS compliance status as legacy variants may differ. Ensure the required operating temperature range aligns with the standard -55°C to +100°C specification. Cross-reference the manufacturer's latest documentation for any assembly site changes or packaging updates before finalizing procurement.

Selection Notes

Select this component when a stable 9.1 V reference is required in low-current applications. The temperature compensation feature makes it suitable for environments with significant thermal fluctuations. Verify that the 500 mW power rating and DO-35 package form factor fit the target PCB layout and thermal management constraints compared to higher-power alternatives.

Part Context

This part belongs to the 1N4765 through 1N4774A series of temperature-compensated Zener reference diodes manufactured by Microchip Technology. These devices are engineered for applications requiring high accuracy and stability over varying temperatures. The series utilizes silicon planar technology housed in hermetically sealed glass packages to ensure long-term reliability in critical electronic systems.

Replacement Considerations

Direct substitutes include other 9.1 V, 500 mW temperature-compensated Zener diodes from the same family, such as the 1N4765A or 1N4772A, provided they meet the specific tolerance and current requirements.