1N5261A

Single Zener Diodes Overview

The Microchip Technology 1N5261A is a 47 V Zener diode housed in a glass axial-lead DO-35 package. It features a maximum power dissipation of 0.5 W and operates within a temperature range of -65°C to +175°C. The device provides a nominal voltage tolerance of ±10%, indicated by the 'A' suffix, with a maximum reverse current of 100 µA at 36 V. Its electrical characteristics include a maximum Zener impedance of 105 Ohms at a test current of 2.7 mA and a positive temperature coefficient of +0.095 %/°C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features minimal capacitance suitable for high-frequency applications
• Constructed with a hermetically sealed glass body for environmental protection
• Inherently radiation hard per MicroNote 050

Single Zener Diodes Applications

• Voltage reference circuits
• Overvoltage protection systems
• Power supply regulation

Single Zener Diodes Procurement Notes

Verify the specific manufacturer origin, as the component may be sourced from Microsemi or Rectron Semiconductor. Confirm compliance with RoHS standards if required, noting that standard versions may not meet these specifications. Ensure the ordering suffix matches the desired tolerance level and packaging format before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when a 47 V breakdown voltage with ±10% tolerance is required. Consider the 0.5 W power rating and thermal resistance limits for heat dissipation. Verify compatibility with through-hole mounting requirements and ensure the operating environment falls within the specified temperature range.

Single Zener Diodes Part Context

This part belongs to the 1N5221 through 1N5281B series of 0.5 W Zener Voltage Regulators. The series offers a wide selection of voltages from 2.4 to 200 volts in standard DO-35 packages. Variations in tolerance are available through different suffix letters, allowing for precise selection based on circuit requirements.

Single Zener Diodes Replacement Considerations

Direct substitutes include the 1N5261B (±5% tolerance) and 1N5261 (±20% tolerance). Other compatible parts within the same series can be selected based on matching voltage and power dissipation ratings.