1N5274A (DO-35)

Single Zener Diodes Overview

The Microsemi Corporation 1N5274A is a Zener diode with a nominal voltage of 130V and a 10% tolerance. It operates in the DO-35 (DO-204AH) glass axial-lead package. The device dissipates 0.5 watts at 25°C, with a maximum reverse current of 94 µA at 110V and a zener impedance of 4500 Ohms at 0.25 mA. It withstands temperatures from -65°C to +175°C.

Single Zener Diodes Feature Summary

• Hermetically sealed glass axial-lead construction
• Inherently radiation hard per MicroNote 050
• ESD nonsensitive per MIL-STD-750 Method 1020

Single Zener Diodes Applications

• Voltage regulation over broad operating ranges
• Military screening applications via prefix identifiers
• General purpose voltage reference circuits

Single Zener Diodes Procurement Notes

Verify the specific suffix 'A' confirms the 10% tolerance specification. Confirm the package type matches the required DO-35 form factor. Ensure the manufacturer designation aligns with Microsemi or authorized successor entities for critical specifications. Check RoHS compliance status if lead-free requirements apply.

Single Zener Diodes Selection Notes

Select this component when a stable 130V reference is needed within a standard axial-lead footprint. Consider the high zener impedance for low-current applications. Evaluate thermal derating curves if ambient temperatures exceed standard limits. Verify that the 0.5W power rating suits the circuit's steady-state dissipation needs.

Single Zener Diodes Part Context

This part belongs to the 1N5221 through 1N5281B series of 0.5-watt Zener Voltage Regulators. The series covers voltages from 2.4 to 200 volts. Variants include tighter tolerances and military screening options. The DO-35 package provides flexible axial-lead mounting terminals.

Single Zener Diodes Replacement Considerations

Equivalent parts include 1N5274BE3 for RoHS compliance. Military variants use prefixes like MQ, MX, MV, or MSP with the '-1' suffix.