1N5275B

Single Zener Diodes Overview

The Microchip Technology 1N5275B is a 0.5 W glass axial-lead Zener diode in the DO-35 package. It provides a nominal Zener voltage of 140 V with a B suffix tolerance of ±5%. The device operates within a temperature range of -65°C to +175°C and features a maximum reverse current of 1300 μA at 100 V. Electrical characteristics include a Zener impedance of 4500 Ω at IZK = 0.25 mA, a test current of 0.90 mA, and a voltage temperature coefficient of +0.110 %/°C.

Single Zener Diodes Feature Summary

• Hermetically sealed glass axial-lead construction for environmental stability
• Voltage regulation maintained across broad operating current and temperature ranges
• Minimal junction capacitance suitable for high-frequency applications
• Inherently radiation hard per MicroNote 050

Single Zener Diodes Applications

• Voltage stabilization circuits
• Reference voltage generation
• Overvoltage protection

Single Zener Diodes Procurement Notes

Verify the specific manufacturer origin, as the datasheet originates from Microsemi while the brand is listed as Microchip Technology. Confirm RoHS compliance status by checking for the e3 suffix on the ordering part number. Ensure the required tolerance matches the B suffix specification before procurement.

Single Zener Diodes Selection Notes

Select this component when a precise 140 V reference is required in a standard through-hole configuration. The B suffix guarantees tighter voltage tolerances compared to the A suffix variant. Consider the high dynamic impedance and positive temperature coefficient when designing precision linear regulation stages.

Single Zener Diodes Part Context

This device belongs to the 1N5221 through 1N5281B series of 0.5 W Zener voltage regulators. The series covers a wide voltage selection from 2.4 V to 200 V. These components serve as industry-standard replacements for legacy JEDEC registered parts in various electronic designs requiring reliable voltage clamping.

Single Zener Diodes Replacement Considerations

Equivalent devices include the 1N5275 (non-suffix) and 1N5275A variants. Surface mount equivalents are available in the MLL5275 series using the DO-213AA MELF package.