1N4750A TR PBFREE

Overview

The Central Semiconductor Corp 1N4750A TR PBFREE is a silicon Zener diode designed for voltage regulation in industrial, commercial, entertainment, and computer applications. It features a nominal Zener voltage of 27 V with a ±5% tolerance. The device operates within a temperature range of -65 °C to +200 °C and dissipates up to 1.0 W at 50 °C. Key electrical parameters include a maximum reverse current of 5.0 μA at 25 V, a maximum Zener impedance of 35 Ω at the test current of 9.5 mA, and a DC current limit of 20.6 mA.

Feature Summary

• Provides stable voltage regulation across a wide operating temperature range from -65 °C to +200 °C
• Features low reverse leakage current for efficient standby operation
• Constructed with a glass body in a DO-41 axial package for reliable through-hole mounting

Applications

• Industrial equipment power supplies
• Commercial electronic systems
• Entertainment system circuitry
• Computer application boards

Procurement Notes

Verify that the ordering suffix 'TR' corresponds to the specific tape-and-reel packaging configuration required for automated assembly processes. Confirm the 'PBFREE' designation aligns with environmental compliance standards mandated by the target market. Ensure the component matches the DO-41 mechanical outline dimensions specified in the datasheet to guarantee proper footprint compatibility during PCB design and manufacturing.

Selection Notes

Select this component when a precise 27 V reference is required with tight 5% tolerance limits. The high maximum junction temperature rating allows for robust performance in thermally demanding environments without derating. The low reverse current characteristic makes it suitable for precision biasing circuits where minimal quiescent power draw is critical for overall system efficiency.

Part Context

This part belongs to the 1N4728A through 1N4764A series of 1-watt silicon Zener diodes manufactured by Central Semiconductor Corp. The series utilizes a standard DO-41 case style for all variants. The manufacturer provides comprehensive technical documentation including electrical characteristics tables and mechanical outlines to support integration into various electronic designs requiring reliable voltage regulation.

Replacement Considerations

Central Semiconductor does not list a direct replacement part number for the 1N4750A in their discontinuation notices. Engineers should consult the manufacturer's engineering team for potential alternate sources or equivalent specifications if supply constraints arise.