1N5264A

Single Zener Diodes Overview

The Microchip Technology 1N5264A is a silicon Zener diode with a nominal breakdown voltage of 60 V and a tolerance of ±10%. It operates in the DO-35 (DO-204AH) glass axial-lead package. The device provides a maximum power dissipation of 0.5 W at 25°C, derating to 0.48 W when mounted on an FR4 printed circuit board. Electrical characteristics include a test current of 2.1 mA, a maximum reverse leakage current of 44 μA at 44 V, and a maximum Zener impedance of 170 Ω at the test current. The unit supports an operating temperature range from -65°C to +175°C.

Single Zener Diodes Feature Summary

• Hermetically sealed glass axial-lead construction for environmental stability
• Inherently radiation hard per MicroNote 050
• Minimal capacitance suitable for high-frequency applications
• Non-sensitive to electrostatic discharge

Single Zener Diodes Applications

• Voltage regulation over broad operating current ranges
• Reference voltage sources in precision circuits
• Overvoltage protection for sensitive semiconductor components

Single Zener Diodes Procurement Notes

Verify that the specific part number matches the required suffix configuration, as the 'A' suffix denotes a 10% voltage tolerance. Confirm compliance requirements, noting that standard versions may not be RoHS compliant unless specified by an 'e3' suffix. Ensure the procurement order specifies the correct screening level if military standards are required, which involves adding specific prefixes to the base part number.

Single Zener Diodes Selection Notes

Select this component when a stable 60 V reference is needed within a 0.5 W power budget. The DO-35 package is appropriate for through-hole mounting where hermetic sealing is necessary. Consider the positive temperature coefficient of approximately +0.097 %/°C for thermal compensation in the design. Verify that the application current stays within the limits defined by the power derating curve to prevent junction overheating.

Single Zener Diodes Part Context

This device belongs to the 1N5221 through 1N5281B series of 0.5 W Zener Voltage Regulators manufactured by Microsemi's Scottsdale Division. The series covers a wide voltage selection from 2.4 V to 200 V. The 1N5264A specifically fills the mid-range voltage requirement within this extensive lineup of JEDEC registered axial-leaded glass Zeners.

Single Zener Diodes Replacement Considerations

Direct replacements within the same family include the 1N5264B for tighter 5% tolerance or the 1N5264C/D for 2%/1% tolerances. Surface mount equivalents are available in the MLL5264 MELF package. For non-hermetic applications, DO-7 glass body equivalents may be considered.