1N1367A

Overview

The Microchip Technology 1N1367A is a single Zener diode designed for stud mount applications in the DO-203AA (DO-4) package. It features a nominal Zener voltage of 47 V with a tolerance of ±5%. The device supports a maximum power dissipation of 10 W and exhibits a maximum Zener impedance of 7 Ohms. It operates within a temperature range extending from -65 °C to +175 °C, ensuring reliability in demanding environments.

Feature Summary

• Provides stable voltage regulation through a robust stud mount construction suitable for high-power thermal management.
• Delivers precise voltage reference capabilities with tight manufacturing tolerances for consistent circuit performance.
• Engineered for high-temperature operation to maintain functionality in harsh industrial or automotive conditions.

Applications

• High-power voltage regulation circuits
• Industrial control system protection
• Automotive electronics voltage references

Procurement Notes

Verify the specific manufacturer lot code and date code upon receipt to ensure component authenticity and traceability. Confirm that the physical package matches the DO-203AA specification before installation. Check for any mechanical damage to the stud terminal that could affect mounting torque or thermal conductivity. Ensure storage conditions comply with moisture sensitivity levels if applicable to the packaging type received.

Selection Notes

Select this component when a fixed 47 V reference is required in high-power scenarios. The stud mount configuration necessitates compatible heatsinking infrastructure for effective thermal dissipation. Evaluate the ±5% tolerance against circuit requirements to ensure voltage accuracy meets design specifications. Consider the operating temperature range limits relative to the expected ambient environment during peak load conditions.

Part Context

This part belongs to the standard Zener diode category manufactured by Microchip Technology. It utilizes the legacy DO-203AA axial leaded package adapted for stud mounting. The series provides discrete voltage regulation solutions distinct from integrated regulator ICs. It serves as a fundamental passive component for overvoltage protection and reference generation in analog circuits.

Replacement Considerations

Substitute parts must match the 47 V nominal voltage, 10 W power rating, and DO-203AA package form factor. Verify equivalent Zener impedance and temperature coefficients to maintain circuit stability. Ensure the replacement device supports the same stud mounting mechanical interface for direct interchangeability without board redesign.

FAQ

What is the maximum power dissipation rating?

The maximum power dissipation is 10 W.

Does the device support surface mount technology?

No, it is designed for stud mount installation using the DO-203AA package.