1N5991B-TP

Single Zener Diodes Overview

The MCC 1N5991B-TP is a 4.3V Zener diode with ±5% voltage tolerance, housed in a DO-35 glass package. It operates within a -65°C to +200°C temperature range and dissipates up to 500mW of DC power. Key electrical parameters include an 88Ω maximum impedance at 0.25mA test current, a 5.0µA maximum reverse leakage current at 1.0V, and a maximum continuous Zener current of 116mA.

Single Zener Diodes Feature Summary

• High reliability construction utilizing a glass passivated junction
• Very sharp reverse characteristic for precise regulation
• Lead-free finish compliant with RoHS directives

Single Zener Diodes Applications

• Voltage reference circuits
• Overvoltage protection
• Clipping and clamping applications

Single Zener Diodes Procurement Notes

Verify authenticity by purchasing only from Micro Commercial Components or authorized distributors. Counterfeit parts are prevalent; unauthorized sources lack traceability and warranty coverage. Confirm the specific 'TP' suffix indicates tape and reel packaging containing 10,000 pieces per reel before finalizing orders.

Single Zener Diodes Selection Notes

Select this component when a 4.3V regulation point is required in a compact axial leaded form factor. The DO-35 package supports high operating temperatures up to 200°C. Ensure the circuit design accommodates the specified 500mW power dissipation limit and thermal resistance constraints under all expected load conditions.

Single Zener Diodes Part Context

This device belongs to the 1N5985B through 1N6016B series manufactured by Micro Commercial Components. The series provides a wide range of Zener voltages from 2.4V to 47V within the same physical footprint. The 'B' designation confirms a standard 5% voltage tolerance specification.

Single Zener Diodes Replacement Considerations

Cross-reference with other manufacturers offering equivalent 4.3V Zener diodes in the DO-35 package. Verify that substitute components meet the identical 500mW power rating, 88Ω impedance maximum, and -65°C to +200°C operating temperature range requirements.