1N4783/TR

Overview

The 1N4783/TR is a Zener diode manufactured by Microchip Technology, designed for voltage regulation applications. It features an 8.5 V nominal Zener voltage with a ±5% tolerance and a maximum power dissipation of 500 mW. The component utilizes a DO-35 axial leaded package suitable for through-hole mounting. Electrical characteristics include a maximum Zener impedance of 100 Ohms and a reverse leakage current of 50 nA. The device operates within a temperature range of -65°C to +175°C junction temperature.

Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features glass axial-leaded construction in the DO-35 package for reliable through-hole integration
• Offers tight voltage tolerance specifications for precision circuit requirements

Applications

• Voltage reference circuits requiring stable DC levels
• Overvoltage protection stages in electronic systems
• General-purpose voltage regulation in consumer and industrial electronics

Procurement Notes

Verify the specific suffix 'TR' indicates tape and reel packaging when sourcing from distributors. Confirm the manufacturer designation as Microchip Technology or its predecessor entities such as Microsemi, as part numbers may carry historical branding variations. Ensure the requested quantity aligns with standard reel sizes if bulk procurement is required. Cross-reference datasheets for any updates regarding RoHS compliance status or manufacturing location changes.

Selection Notes

Select this component when an 8.5 V regulation point is required with moderate power handling capabilities. The DO-35 package is appropriate for standard PCB layouts utilizing through-hole technology. Consider the 500 mW power rating to ensure adequate thermal management under continuous operation. Verify that the ±5% voltage tolerance meets the specific accuracy requirements of the target application design.

Part Context

This component belongs to the 1N47xx series of 0.5 W Zener Voltage Regulators produced by Microchip Technology. The series provides a wide selection of voltage values ranging from 1.8 V to 43 V in standard 5% tolerances. These devices are widely used in discrete semiconductor applications where reliable voltage clamping or referencing is necessary. The 1N4783 variant specifically targets the 8.5 V segment of this extensive product family.

Replacement Considerations

Equivalent parts include the 1N4782A and 1N4784A from the same manufacturer series. Other generic equivalents with matching 8.5 V Zener voltage and 500 mW power rating may be substituted if pin compatibility and electrical parameters align.