1N4618 BK TIN/LEAD

Single Zener Diodes Overview

The Central Semiconductor Corp 1N4618 BK TIN/LEAD is a silicon Zener diode designed for low leakage, low current, and low noise applications. It features a nominal Zener voltage of 2.7 V with a 5% tolerance, tested at 250 µA. The device operates within a power dissipation rating of 250 mW and supports junction temperatures from -65 °C to +200 °C. Key electrical parameters include a maximum reverse current of 1.0 µA at 1.0 V, a maximum Zener impedance of 1500 Ω, and a maximum forward voltage of 1.0 V at 200 mA. It utilizes the DO-35 through-hole package.

Single Zener Diodes Feature Summary

• Engineered for low leakage, low current, and low noise performance
• Utilizes metallurgical bonding in a glass DO-35 case
• Supports extended operating junction temperatures up to +200 °C

Single Zener Diodes Applications

• Low noise signal conditioning circuits
• Precision low current voltage reference designs
• Low leakage protection stages

Single Zener Diodes Procurement Notes

Verify that the ordering suffix 'TIN/LEAD' corresponds to the specific plating requirement, as Central Semiconductor distinguishes between Tin/Lead and Lead-Free (PBFREE) variants via explicit suffixes. Confirm the component matches the DO-35 mechanical outline and the C4618 marking code. Ensure the application environment remains within the specified -65 °C to +200 °C junction temperature range to maintain rated performance.

Single Zener Diodes Selection Notes

Select this component when circuit requirements demand minimal reverse leakage current and low noise density. The 2.7 V nominal voltage makes it suitable for precise low-voltage regulation tasks. Verify that the 250 mW power dissipation limit accommodates the thermal conditions of the target assembly. Consider the DO-35 package constraints for board layout and lead spacing.

Single Zener Diodes Part Context

This part belongs to the 1N4614 series, which covers Zener voltages from 1.8 V to 6.2 V. Higher voltage options within the same low-noise family are available in the 1N4099 series. The series is characterized by its suitability for sensitive analog applications requiring stable voltage references with minimal interference.

Single Zener Diodes Replacement Considerations

Direct substitutes must match the 2.7 V nominal Zener voltage, 250 mW power rating, and DO-35 package. Verify that alternative components meet the 1500 Ω maximum Zener impedance and 1.0 µA maximum reverse current specifications to ensure equivalent low-noise performance.