1N4699 TR PBFREE

Overview

The Central Semiconductor Corp 1N4699 TR PBFREE is a silicon Zener diode from the 1N4678 series, designed for low-level voltage regulation applications. It features a nominal Zener voltage of 12 V with a tolerance range of 11.40 V to 12.60 V at a test current of 50 μA. The device has a maximum power dissipation of 500 mW and operates within a junction temperature range of -65°C to +200°C. It utilizes a DO-35 axial leaded package and includes a maximum reverse leakage current of 0.05 μA at 9.1 V.

Feature Summary

• Designed for extremely low operating current requirements
• Features low leakage characteristics suitable for sensitive circuits
• Provides stable voltage regulation within a tight tolerance band

Applications

• Low-level voltage reference circuits
• Precision voltage regulation in low-power systems
• Protection against overvoltage in sensitive electronic components

Procurement Notes

Verify that the ordering suffix 'TR' corresponds to the specific tape-and-reel packaging configuration required by your assembly line, as standard datasheets may list bulk or different reel specifications. Confirm the 'PBFREE' designation aligns with RoHS compliance requirements for your manufacturing process. Ensure the DO-35 package dimensions match your PCB footprint design constraints before finalizing procurement.

Selection Notes

Select this component when a precise 12 V reference is needed with minimal quiescent current draw. The low leakage current makes it suitable for high-impedance circuits where standard Zener diodes might introduce significant error. Consider the thermal management capabilities provided by the 500 mW power rating and the wide operating temperature range for environmental stability.

Part Context

This part belongs to the 1N4678 through 1N4717 series of low-level silicon Zener diodes manufactured by Central Semiconductor Corp. The series covers a voltage range from 1.8 V to 43 V, all sharing similar electrical characteristics such as low test currents and tight tolerances. These devices are commonly used in analog signal processing and precision measurement equipment requiring stable voltage references.

Replacement Considerations

Cross-reference with other manufacturers' 1N4699 equivalents ensuring identical DO-35 packaging and 12 V nominal voltage. Verify that substitute parts meet the same 50 μA test current and 0.05 μA maximum leakage current specifications to maintain circuit performance integrity.