1N2846B

Overview

The Microchip Technology 1N2846B is a Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 15V and a maximum power dissipation of 500mW. The device utilizes a DO-35 axial leaded package, suitable for through-hole mounting. Key electrical characteristics include a test current of 17mA and a maximum reverse leakage current of 5µA at the rated voltage. The component operates within a temperature range from -65°C to +175°C, ensuring reliability in demanding environments.

Feature Summary

• Provides stable voltage regulation with a 15V nominal Zener voltage
• Supports high-temperature operation up to 175°C junction temperature
• Utilizes a standard DO-35 axial leaded package for through-hole integration

Applications

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

Procurement Notes

Verify the specific suffix and manufacturer documentation to confirm exact electrical tolerances and packaging details. Ensure compatibility with existing thermal management designs due to the 500mW power rating. Cross-reference official datasheets for precise testing conditions and maximum ratings before finalizing procurement specifications.

Selection Notes

Select this component when a 15V Zener voltage is required with moderate power handling capabilities. The DO-35 package offers a compact solution for through-hole PCB layouts. Consider the wide operating temperature range for applications exposed to extreme environmental conditions. Verify that the 500mW dissipation rating aligns with the circuit's thermal design constraints.

Part Context

The 1N2846B belongs to the standard Zener diode family manufactured by Microchip Technology. These components are widely used in discrete semiconductor applications for voltage clamping and regulation. The DO-35 package is a legacy form factor commonly found in established electronic designs. This part number represents a specific voltage variant within the broader series of axial leaded Zener diodes.

Replacement Considerations

Consult official substitution guides for compatible equivalents. Verify pinout compatibility and electrical parameter alignment with alternative manufacturers. Ensure that any replacement part meets or exceeds the original 15V Zener voltage and 500mW power dissipation requirements.