1N4932/TR

Overview

The Microchip Technology 1N4932/TR is a single Zener diode designed for temperature compensation applications. It features a nominal Zener voltage of 19.2 V with a tolerance of ±5%. The device has a maximum power dissipation of 500 mW and operates with a test current of 7.5 mA. It utilizes a DO-204AH (DO-35) axial leaded package, measuring 7.62 mm in length and 2.718 mm in diameter, with a unit weight of 200 mg. The reverse leakage current is specified at 15 µA.

Feature Summary

• Temperature compensated Zener design for stable voltage regulation across varying thermal conditions
• Single diode configuration housed in standard axial through-hole package
• High precision voltage tolerance suitable for sensitive reference circuits

Applications

• Voltage reference circuits requiring thermal stability
• Temperature compensation networks in analog systems
• Precision regulator designs

Procurement Notes

Verify the specific suffix /TR indicates tape and reel packaging if required for automated assembly. Confirm RoHS compliance status as manufacturing standards may vary by production batch. Ensure the DO-35 package dimensions match the PCB footprint requirements. Cross-reference the 19.2 V nominal voltage against circuit design specifications to ensure compatibility with target operating ranges.

Selection Notes

Select this component when a stable 19.2 V reference is needed with minimal drift due to temperature changes. The 500 mW power rating supports moderate current loads in series configurations. The through-hole DO-35 package facilitates manual prototyping and repair. Compare against non-compensated Zener variants if thermal performance is critical to the application's reliability.

Part Context

This part belongs to Microchip's discrete semiconductor portfolio, specifically within the Zener diode category. It serves as a specialized variant optimized for temperature compensation rather than general-purpose clipping or protection. The 1N4932 designation distinguishes it from other voltage levels within the same family, such as the 1N4930 or 1N4931.

Replacement Considerations

The 1N4932/TR is listed as a parametric equivalent to the 1N4930/TR in some distributor databases, though voltage ratings must be verified. Direct substitutes should maintain the 19.2 V nominal voltage, 500 mW power rating, and DO-35 package form factor.