1N5275A

Single Zener Diodes Overview

The Microchip Technology 1N5275A is a 0.5-watt glass axial-lead Zener diode housed in a DO-35 package. It features a nominal Zener voltage of 140 volts with a standard tolerance of ±10%, indicated by the 'A' suffix. The device operates within a temperature range of -65°C to +175°C and exhibits a positive temperature coefficient of +0.110 %/°C. Electrical characteristics include a maximum reverse current of 94 μA at 130 volts and a Zener impedance of 4500 ohms at a test current of 1300 mA.

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
• Inherently radiation hard per MicroNote 050 specifications
• Non-sensitive to electrostatic discharge (ESD) per MIL-STD-750 Method 1020

Single Zener Diodes Applications

• Voltage reference circuits requiring precise potential levels
• Overvoltage protection in electronic systems
• Clamping applications in signal processing paths

Single Zener Diodes Procurement Notes

Verify the specific suffix configuration when ordering, as the 'A' suffix denotes a ±10% tolerance which differs from other available options like 'B' for ±5%. Confirm RoHS compliance status if required, typically indicated by an 'e3' suffix. Ensure the procurement documentation references the correct JEDEC registration number and that the component matches the specified DO-35 glass axial-lead package dimensions for proper mechanical integration.

Single Zener Diodes Selection Notes

Select this component when a 140-volt Zener reference is needed with moderate tolerance requirements. Consider the positive temperature coefficient for thermal stability analysis in the target environment. Evaluate the high Zener impedance value against circuit loading requirements to ensure adequate regulation performance under varying load conditions.

Single Zener Diodes Part Context

This part belongs to the extensive 1N5221 through 1N5281B series of 0.5-watt Zener diodes manufactured by Microsemi's Scottsdale Division. The series covers a wide voltage range from 2.4 to 200 volts, offering various tolerance options and screening levels. The 1N5275A specifically addresses the higher voltage end of the spectrum within the standard commercial grade lineup.

Single Zener Diodes Replacement Considerations

Direct substitutes include other manufacturers' 1N5275A equivalents meeting JEDEC standards. Surface mount alternatives are available in the MLL5221 to MLL5281B series using the DO-213AA MELF package. Verify pinout compatibility and thermal dissipation capabilities when transitioning between leaded and surface mount technologies.