1N5255

Single Zener Diodes Overview

The 1N5255 is a single silicon planar Zener diode manufactured by SMC Diode Solutions. It features a nominal Zener voltage of 28 V with a maximum impedance of 44 Ohms. The device supports a maximum power dissipation of 500 mW and exhibits a reverse leakage current of 100 nA at 21 V. Packaged in a DO-213AA form factor, it is designed for unidirectional voltage regulation applications requiring standard tolerance characteristics.

Single Zener Diodes Feature Summary

• Utilizes silicon planar technology for robust voltage regulation
• Encapsulated in a glass package suitable for high-temperature soldering processes
• Designed for high reliability in surface mount configurations

Single Zener Diodes Applications

• Voltage regulation circuits
• High reliability electronic systems
• Surface mount assembly processes

Single Zener Diodes Procurement Notes

Verify the specific manufacturer source when procuring this component, as multiple vendors including Microchip and Micro Commercial Components produce variants under the same designation. Confirm the exact package style and tolerance suffix required for your design, as specifications such as impedance and leakage may vary slightly between suppliers. Ensure the selected unit meets the thermal and electrical requirements of the target application before finalizing orders.

Single Zener Diodes Selection Notes

Select this component for applications requiring a stable 28 V reference point with moderate power handling capabilities. The glass encapsulation offers protection against environmental factors while allowing for standard reflow or wave soldering techniques. Consider the 44 Ohm impedance limit when designing for dynamic load conditions to ensure accurate voltage clamping performance without excessive deviation.

Single Zener Diodes Part Context

This part belongs to the broader family of standard Zener diodes used for overvoltage protection and voltage referencing. While many manufacturers offer similar 28 V devices, the 1N5255 specifically denotes a 500 mW rated unit. It serves as a fundamental discrete semiconductor component in analog circuitry, distinct from integrated voltage regulators or transient suppression arrays.

Single Zener Diodes Replacement Considerations

Cross-reference with other 28 V, 500 mW Zener diodes in compatible packages. Verify that substitute parts maintain equivalent impedance and leakage current specifications to ensure circuit stability.