1N4681/TR

Overview

The Microchip Technology 1N4681/TR is a single Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 2.4 V with a standard tolerance of 5%. The device operates in the DO-7-2 (DO-35) through-hole package and supports a maximum power dissipation of 500 mW. Electrical characteristics include a maximum reverse leakage current of 2 µA at 1 V, a forward voltage of 1.1 V at 200 mA, and a test current of 50 µA. The component is rated for an operating temperature range from -65°C to +175°C.

Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features internal metallurgical bond construction for enhanced reliability
• Offers low reverse leakage current for efficient circuit performance

Applications

• Voltage reference circuits requiring precise potential levels
• Overvoltage protection stages in electronic systems
• General-purpose voltage regulation in industrial equipment

Procurement Notes

Verify the specific suffix designation against official Microchip documentation to confirm packaging configuration and screening level. Ensure that the required voltage tolerance and thermal ratings align with the target application specifications before procurement. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and current production status.

Selection Notes

Select this component when a 2.4 V regulation point is required within a through-hole design constraint. Consider the 500 mW power dissipation limit and the wide temperature range suitability for harsh environments. Evaluate the reverse leakage characteristics against sensitive input requirements to ensure compatibility with the overall system electrical architecture.

Part Context

This device belongs to the 1N4678 through 1N4717 series of 0.5 W Zener voltage regulators manufactured by Microchip Technology. The series provides a comprehensive selection of voltages ranging from 1.8 V to 43 V in standard glass axial-leaded packages. These components are widely utilized in discrete semiconductor applications requiring reliable voltage clamping or referencing capabilities.

Replacement Considerations

Consult official substitution guides for equivalent parts from other manufacturers. Verify pinout compatibility and electrical parameter alignment before implementing any alternative component in the design.