1N4915A/TR

Single Zener Diodes Overview

The Microchip Technology 1N4915A/TR is a single temperature-compensated Zener diode designed for precision voltage regulation applications. It features a nominal Zener voltage of 12.8 V with a tolerance of ±5%. The device operates within a power dissipation rating of 400 mW and utilizes a DO-7 axial through-hole package. Electrical characteristics include a reverse current of 15 µA at the test current of 7.5 mA, ensuring stable performance across an operating temperature range of -55°C to 100°C.

Single Zener Diodes Feature Summary

• Temperature compensated design for stable voltage regulation across varying thermal conditions
• Precision voltage tolerance ensures accurate reference levels in sensitive circuits
• Robust axial leaded construction suitable for through-hole mounting techniques

Single Zener Diodes Applications

• Precision voltage reference circuits requiring thermal stability
• Overvoltage protection systems utilizing stable breakdown characteristics
• Linear regulator biasing networks demanding consistent voltage drops

Single Zener Diodes Procurement Notes

Verify the specific suffix TR indicates tape-and-reel packaging configuration when sourcing components. Confirm the manufacturer designation remains Microchip Technology to ensure authenticity and compliance with specified electrical tolerances. Cross-reference datasheet revisions to validate parameter consistency against current production batches before integration into final designs.

Single Zener Diodes Selection Notes

Select this component when circuit requirements demand a fixed 12.8 V reference with minimal drift over temperature variations. The 400 mW power rating supports moderate current loads without excessive heating. Ensure the DO-7 package dimensions align with available PCB real estate and that the ±5% tolerance meets the system's accuracy constraints for voltage regulation tasks.

Single Zener Diodes Part Context

This part belongs to the standard Zener diode family manufactured by Microchip Technology. It serves as a specialized variant optimized for temperature compensation rather than simple voltage clamping. The 1N4915A designation distinguishes it from non-compensated counterparts by offering superior thermal stability, making it suitable for high-precision analog applications where voltage drift must be minimized.

Single Zener Diodes Replacement Considerations

Direct substitutes must match the 12.8 V Zener voltage, 400 mW power rating, and DO-7 package. Verify that alternative candidates also provide temperature compensation characteristics to maintain equivalent thermal stability. Ensure pinout compatibility and electrical tolerances align with the original design specifications to prevent circuit malfunction.