1N5237C-TR

Single Zener Diodes Overview

The Vishay 1N5237C-TR is a silicon planar power Zener diode in the DO-35 (DO-204AH) axial package. It provides an 8.2 V nominal Zener voltage with a ±2% tolerance, as indicated by the 'C' suffix. The device dissipates up to 500 mW at thermal equilibrium and operates within a junction temperature range of -65 °C to +175 °C. Key electrical parameters include a maximum reverse leakage current of 3 µA at 6.5 V, a typical dynamic resistance of 8 Ω at 20 mA, and a positive temperature coefficient of 0.062 %/K.

Single Zener Diodes Feature Summary

• Utilizes silicon planar technology for robust voltage regulation
• Offers tight ±2% Zener voltage tolerance for precision applications
• Features low reverse leakage current characteristics
• Designed for high thermal stability across extended operating temperatures

Single Zener Diodes Applications

• Voltage stabilization circuits
• Reference voltage generation
• Overvoltage protection

Single Zener Diodes Procurement Notes

Verify that the ordering code includes the '-TR' suffix to confirm taped-and-reeled packaging. Ensure the 'C' designation is present to guarantee the required ±2% voltage tolerance rather than the standard ±5%. Confirm compliance with RoHS directives and material categorization requirements specific to your region before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when precise voltage regulation is critical due to its tighter ±2% tolerance compared to the standard B-series. The DO-35 axial package is suitable for through-hole mounting. Consider the positive temperature coefficient of 0.062 %/K for thermal compensation needs. Verify that the 500 mW power dissipation rating aligns with the thermal management capabilities of the target circuit design.

Single Zener Diodes Part Context

This part belongs to the 1N5221 to 1N5267 series of small signal Zener diodes manufactured by Vishay Semiconductors. The series covers a wide Zener voltage range from 2.4 V to 75 V. The 1N5237 variant specifically targets the 8.2 V segment, offering a balance between low leakage and moderate dynamic impedance suitable for general-purpose regulation tasks.

Single Zener Diodes Replacement Considerations

Direct substitutes within the same Vishay family include the 1N5237B-TR, which shares identical electrical specifications but features a wider ±5% voltage tolerance. Other manufacturers may offer equivalents under the 1N5237 designation, provided they match the DO-35 package and 500 mW power rating.