1N1363

Overview

The Microchip Technology 1N1363 is a silicon Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 33V with a tolerance of ±10%. The component is rated for a maximum power dissipation of 10W and operates within a junction temperature range of -65°C to +175°C. It utilizes a DO-203AA (DO-4) package with a stud mount configuration, providing a single unidirectional terminal connection.

Feature Summary

• High power handling capability of 10W for robust voltage regulation
• Extended operating temperature range suitable for harsh environments
• Stud mount construction for efficient thermal management

Applications

• Industrial voltage regulation circuits
• Power supply protection systems
• Military and aerospace electronic assemblies

Procurement Notes

Verify the specific manufacturer source, as historical production may involve multiple entities including Motorola or Microsemi. Confirm compliance requirements such as RoHS status, which varies by production era. Ensure the package type matches the DO-203AA specification and validate the exact voltage tolerance if critical precision is required.

Selection Notes

Select this component when a 33V reference is needed in high-power scenarios requiring direct chassis mounting. Consider the ±10% tolerance for general regulation rather than precision applications. Evaluate thermal resistance characteristics due to the stud mount design and ensure adequate heat sinking infrastructure is available.

Part Context

This device belongs to the 1N136x series of high-power Zener diodes manufactured by Microchip Technology. The series offers various voltage ratings from 24V to higher values, all sharing the same 10W power rating and DO-4 package form factor. These components are standard replacements for legacy industrial and military designs requiring reliable voltage clamping.

Replacement Considerations

Direct substitutes include other manufacturers' 1N1363 equivalents meeting the 33V/10W/DO-4 specifications. Cross-reference with 1N1363A variants if tighter ±5% tolerance is acceptable, though electrical parameters differ slightly.