1N3825A-1

Single Zener Diodes Overview

The Microchip Technology 1N3825A-1 is a silicon Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 4.7V with a tight tolerance of ±2%. The device is rated for a maximum DC power dissipation of 1 watt at an ambient temperature of 125°C. It utilizes a DO-41 axial leaded package, suitable for through-hole mounting. Key electrical characteristics include a maximum reverse leakage current of 5 µA and a Zener impedance of 8 Ohms. The component operates within a junction temperature range of -65°C to +175°C, ensuring reliability in demanding environments.

Single Zener Diodes Feature Summary

• Provides precise voltage regulation with a nominal 4.7V output and ±2% tolerance.
• Capable of handling up to 1 watt of DC power dissipation for robust performance.
• Constructed with double plug design for enhanced structural integrity.
• Operates reliably across an extended temperature range from -65°C to +175°C.

Single Zener Diodes Applications

• Voltage reference circuits requiring stable 4.7V levels
• Overvoltage protection in sensitive electronic systems
• Clamping applications in signal processing paths

Single Zener Diodes Procurement Notes

Verify the specific suffix designation when ordering, as variations such as JAN or JANTX may indicate different qualification standards or testing requirements under MIL-PRF-19500/115. Confirm the package type matches your PCB layout needs, as surface mount variants like the CUR-1 exist. Ensure that the required operating temperature range aligns with the standard -65°C to +175°C specification provided in the datasheet.

Single Zener Diodes Selection Notes

Select this component when a high-reliability, axial-leaded Zener diode with a 4.7V breakdown voltage is required. Consider the 1W power rating for thermal management in your design. Compare against other series members like the 1N3821A-1 or 1N3828A-1 if different voltage levels are needed. Verify that the DO-41 package fits your assembly constraints before finalizing the part number.

Single Zener Diodes Part Context

The 1N3825A-1 belongs to the broader family of 1N3821A-1 through 1N3828A-1 Zener diodes manufactured by Microchip. These devices share similar construction techniques and reliability standards, differing primarily in their specific Zener voltage ratings. This family is often utilized in aerospace and defense applications due to their stringent manufacturing controls and hermetic sealing options available in certain suffixes.

Single Zener Diodes Replacement Considerations

Direct substitutes include other 1N3825A-1 variants from Microchip or qualified equivalents meeting MIL-PRF-19500/115 specifications. Surface mount replacements like the JAN1N3825CUR-1 offer similar electrical performance but require different footprint considerations. Always verify pinout compatibility and thermal characteristics when substituting.