1N4680 TR PBFREE

Overview

The Central Semiconductor Corp 1N4680 TR PBFREE is a silicon Zener diode designed for low-level applications requiring extremely low operating current and leakage. It features a nominal Zener voltage of 2.2 V with a 5% tolerance, tested at 50 μA. The device dissipates up to 500 mW and operates within a junction temperature range of -65°C to +200°C. Packaged in the DO-35 axial leaded case, it offers a maximum reverse leakage current of 4.0 μA and a maximum regulator current of 100 mA.

Feature Summary

• Designed for applications requiring extremely low operating current (50μA) and low leakage characteristics.
• Provides stable voltage regulation with a tight 5% tolerance on the nominal Zener voltage.
• Capable of handling high thermal stress with an extended operating junction temperature range up to +200°C.

Applications

• Low power voltage reference circuits
• Precision clamping applications
• Protection against overvoltage transients in sensitive electronics

Procurement Notes

Verify that the ordering suffix 'TR' corresponds to the specific reel packaging configuration required by your assembly line. Confirm that the 'PBFREE' designation aligns with RoHS compliance requirements for your manufacturing process. Ensure the DO-35 package dimensions match your PCB footprint specifications before finalizing procurement orders.

Selection Notes

Select this component when circuit design demands minimal quiescent current consumption alongside precise low-voltage regulation. The 500 mW power rating supports moderate load conditions, while the wide temperature range ensures reliability in harsh environments. Consider the 5% tolerance limits when designing tight voltage margins for downstream components.

Part Context

This part belongs to the 1N4678 through 1N4717 series of low-level silicon Zener diodes manufactured by Central Semiconductor. The series covers a voltage range from 1.8 V to 43 V, all sharing similar electrical characteristics such as low test currents and axial DO-35 packaging. This specific model represents the lower end of the voltage spectrum within this established product family.

Replacement Considerations

Cross-reference with other manufacturers offering 1N4680 equivalents in DO-35 packages. Verify that substitute parts maintain the 50 μA test current requirement and 500 mW power dissipation rating to ensure functional compatibility without redesigning the surrounding circuitry.

FAQ

What is the maximum reverse leakage current for the 1N4680?

The maximum reverse leakage current is specified as 4.0 μA at the rated reverse voltage.

How is the Zener voltage tolerance defined for this device?

The device maintains a strict 5% tolerance around its nominal 2.2 V Zener voltage.