1N5238B-TR

Single Zener Diodes Overview

The 1N5238B-TR is a silicon planar power Zener diode manufactured by Vishay General Semiconductor - Diodes Division. It provides a nominal Zener voltage of 8.7 V with a standard tolerance of ±5%. The device operates at a test current of 20 mA and dissipates up to 500 mW of power. It features a maximum dynamic resistance of 600 Ω and a reverse leakage current of 3 µA at 6.5 V. Packaged in the DO-35 (DO-204AH) axial leaded format, it supports a junction temperature up to 175 °C.

Single Zener Diodes Feature Summary

• Utilizes silicon planar technology for robust voltage regulation
• Provides stable reference voltages within a tight manufacturing tolerance
• Designed for high thermal stability across extended operating ranges

Single Zener Diodes Applications

• Voltage stabilization circuits
• Reference voltage generation
• Overvoltage protection

Single Zener Diodes Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm that the ordering code matches the specific B-suffix designation for ±5% tolerance. Ensure compliance with RoHS3 standards and check for any recent production change notifications regarding package or material composition updates.

Single Zener Diodes Selection Notes

Select this component when a precise 8.7 V reference is required in through-hole designs. Consider the 600 Ω dynamic impedance for circuit sensitivity requirements. Evaluate the 500 mW power dissipation limit against expected thermal conditions to ensure reliable operation without exceeding the maximum junction temperature rating.

Single Zener Diodes Part Context

This part belongs to the 1N5221 to 1N5267 series of small signal Zener diodes from Vishay Semiconductors. The series covers a wide range of nominal voltages from 2.4 V to 75 V. The 'B' suffix indicates the standard ±5% voltage tolerance variant, distinguishing it from the tighter ±2% 'C' tolerance option available within the same product family.

Single Zener Diodes Replacement Considerations

Direct substitutes include other manufacturers' equivalents meeting the 8.7 V, 500 mW, and DO-35 specifications. Cross-reference electrical parameters such as dynamic resistance and leakage current to ensure functional compatibility in existing designs.