1N4618 BK PBFREE

Single Zener Diodes Overview

The Central Semiconductor Corp 1N4618 BK PBFREE is a silicon Zener diode designed for low leakage, low current, and low noise applications. It operates within the 1.8V to 6.2V range with a nominal Zener voltage of 2.7V at a test current of 250µA. The device features a maximum power dissipation of 250mW and a tight voltage tolerance of 5%. Electrical characteristics include a maximum reverse current of 1.0µA at 1.0V and a maximum Zener impedance of 1500Ω. Noise density is specified at 1.0µV/Hz when measured at 250µA.

Single Zener Diodes Feature Summary

• Engineered specifically for low leakage and low noise performance in sensitive circuits
• Provides stable voltage regulation with a tight 5% tolerance across the operating range
• Capable of reliable operation over an extended junction temperature range from -65°C to +200°C

Single Zener Diodes Applications

• Low noise reference voltage generation
• Precision voltage regulation in low current circuits
• Signal conditioning requiring minimal leakage current

Single Zener Diodes Procurement Notes

Verify that the ordering suffix matches the required plating specification. Use 'PBFREE' for lead-free compliant devices or 'TIN/LEAD' for tin-lead plated variants. Confirm the DO-35 through-hole package type aligns with the target PCB footprint. Ensure the component meets RoHS requirements if applicable to the final assembly standards.

Single Zener Diodes Selection Notes

Select this component when circuit design demands minimal Zener noise and ultra-low reverse leakage current. The 250mW power rating suits low-power signal processing rather than high-power regulation. Verify that the 1500Ω impedance fits the dynamic load requirements. Consider the wide thermal range for harsh environment deployments.

Single Zener Diodes Part Context

This part belongs to the 1N4614 series, which covers Zener voltages from 1.8V to 6.2V. These devices utilize a DO-35 axial leaded case style. Higher voltage options within the same low-noise family are available in the 1N4099 series. The marking code for this specific unit is C4618.

Single Zener Diodes Replacement Considerations

Cross-reference with other manufacturers offering 1N4618 equivalents in the DO-35 package. Ensure replacement parts maintain the 250mW power dissipation and 5% voltage tolerance. Verify that substitute components meet the same 1.0µA maximum reverse current and 1.0µV/Hz noise density specifications.