1N5252B (DO-35)

Single Zener Diodes Overview

The Microchip Technology 1N5252B is a 0.5 W glass axial-lead Zener diode in the DO-35 package. It provides a nominal Zener voltage of 24 V with a ±5% tolerance (suffix B). The device operates within a temperature range of -65°C to +175°C and features a maximum reverse current of 100 µA at 17 V. Electrical characteristics include a test current of 5.2 mA, a maximum Zener impedance of 33 Ω, and a voltage temperature coefficient of +0.088 %/°C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features minimal capacitance for high-frequency applications
• Inherently radiation hard per MicroNote 050
• Non-sensitive to electrostatic discharge

Single Zener Diodes Applications

• Voltage reference circuits
• Overvoltage protection
• Power supply regulation

Single Zener Diodes Procurement Notes

Verify the specific suffix requirements against the datasheet to ensure correct tolerance levels. Confirm RoHS compliance status if required by the application, as standard versions may differ from e3 compliant units. Check for military screening prefixes if environmental ruggedness is necessary. Ensure lead length specifications are met during thermal resistance calculations.

Single Zener Diodes Selection Notes

Select this component when a precise 24 V reference is needed with tight manufacturing tolerances. The DO-35 glass package offers hermetic sealing suitable for harsh environments. Consider the positive temperature coefficient for thermal stability in higher voltage ranges compared to lower voltage alternatives.

Single Zener Diodes Part Context

This part belongs to the 1N5221 through 1N5281B series of 0.5 W Zener diodes. The series covers a wide voltage selection from 2.4 V to 200 V. The 'B' suffix specifically denotes a tighter ±5% voltage tolerance compared to the standard A suffix.

Single Zener Diodes Replacement Considerations

Equivalent parts include other manufacturers' 1N5252B variants in the DO-35 package. Surface mount equivalents like MLL5252B are available in the DO-213AA MELF style. Verify pinout compatibility and thermal derating curves when substituting.