1N5228BRL

Single Zener Diodes Overview

The onsemi 1N5228BRL is a single Zener voltage regulator diode with a nominal breakdown voltage of 3.9 V and a power dissipation rating of 500 mW. It features a 5% voltage tolerance and operates in a unidirectional configuration. The component utilizes silicon technology and is housed in a DO-204AH (DO-35) glass axial-leaded package. Key electrical characteristics include a maximum reverse leakage current of 1 µA, a Zener impedance of 23 Ohms at a test current of 20 mA, and a forward voltage of 1.1 V. The device supports an operating temperature range from -65 °C to +200 °C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation via the Zener effect for circuit protection and reference applications
• Utilizes hermetically sealed glass construction for environmental durability
• Offers precise voltage tolerance for consistent performance in sensitive electronics

Single Zener Diodes Applications

• Voltage regulation in power supply circuits
• Overvoltage protection for sensitive semiconductor components
• Reference voltage generation in measurement instrumentation

Single Zener Diodes Procurement Notes

Verify that the specific procurement lot matches the required military or commercial screening levels, as specifications may vary based on the manufacturer's quality tier. Confirm the package style corresponds to the design requirements, noting that the 1N5228BRL designation typically implies tape-and-reel packaging within the DO-35 form factor. Ensure compatibility with existing assembly processes regarding leaded component handling.

Single Zener Diodes Selection Notes

Select this component when a 3.9 V regulation point is required with moderate power handling capabilities. The DO-35 package is suitable for through-hole mounting where space constraints allow. Consider the thermal management requirements given the 500 mW dissipation limit. Verify that the 5% tolerance meets the circuit's precision needs compared to tighter tolerance alternatives.

Single Zener Diodes Part Context

This part belongs to the standard 1N522x series of 0.5 W Zener diodes, widely used for general-purpose voltage regulation. The 'B' suffix typically denotes a 5% tolerance band. While similar parts exist from other manufacturers like Microsemi, the onsemi version offers specific reliability standards associated with their production lines. The series covers a broad range of voltages, making it a common choice for discrete regulator designs.

Single Zener Diodes Replacement Considerations

Direct substitutes include the 1N5228B from Microchip Technology and the MV1N5228B-1 from Microsemi, which share identical electrical parameters and the DO-35 package. Cross-brand replacements require verification of pinout compatibility and thermal ratings.