1N1366A

Overview

The Microchip Technology 1N1366A is a single Zener diode designed for voltage regulation and reference applications. It features a nominal Zener voltage of 43 V with a tolerance of ±5%. The device is rated for a maximum power dissipation of 10 W and exhibits a maximum Zener impedance (Zzt) of 6 Ohms. It utilizes a DO-203AA (DO-4) axial leaded package suitable for panel or chassis mounting. The component operates within a junction temperature range of -65°C to +200°C.

Feature Summary

• High power handling capability of 10 W for robust voltage regulation in demanding environments.
• Wide operating temperature range extending up to +200°C junction temperature.
• Low Zener impedance of 6 Ohms for stable voltage reference performance.
• Durable DO-203AA axial leaded package designed for secure terminal mounting.

Applications

• High-power voltage regulation circuits
• Precision voltage reference sources
• Overvoltage protection systems

Procurement Notes

Verify the specific ordering suffix against official Microchip documentation to ensure correct packaging and variant selection. Confirm RoHS compliance status as required by project specifications, noting that certain variants may not meet current environmental directives. Validate the DO-203AA package dimensions and terminal configuration against mechanical design constraints before finalizing procurement orders.

Selection Notes

Select this component when high power dissipation and wide temperature stability are critical requirements. The 43 V nominal voltage and low impedance make it suitable for precise regulation tasks. Ensure the application supports the physical size and mounting style of the DO-203AA package. Consider thermal management strategies given the 10 W power rating and high maximum junction temperature capability.

Part Context

The 1N1366A belongs to the standard Zener diode family manufactured by Microchip Technology. It shares the DO-203AA form factor with other high-power axial diodes in the lineup. This series is engineered for industrial and commercial applications requiring reliable voltage clamping and regulation under varying thermal conditions.

Replacement Considerations

Consult official Microchip substitution guides for verified equivalents. Cross-reference key parameters such as Zener voltage, power rating, and package type when evaluating alternative components from other manufacturers.