1N4622 BK PBFREE

Single Zener Diodes Overview

The Central Semiconductor Corp 1N4622 BK PBFREE is a silicon Zener diode designed for low leakage, low current, and low noise applications. It operates within the 1N4614 series range, featuring a nominal Zener voltage of 3.9 V with a 5% tolerance (minimum 3.705 V, maximum 4.095 V). The device dissipates up to 250 mW at 25°C and maintains an operating junction temperature between -65°C and +200°C. Electrical characteristics include a maximum reverse current of 2.0 µA at the rated voltage, a maximum Zener impedance of 5.0 Ω at a test current of 250 µA, and a noise density of 1.0 µV/√Hz at 250 µA.

Single Zener Diodes Feature Summary

• Engineered for low leakage and low noise performance suitable for sensitive circuits
• Provides stable voltage regulation with tight 5% tolerance across the specified range
• Capable of operation in extreme thermal environments up to +200°C junction temperature

Single Zener Diodes Applications

• Low noise voltage reference circuits
• Precision low current regulation applications
• Sensitive analog signal conditioning stages

Single Zener Diodes Procurement Notes

Verify that the specific ordering suffix matches the required plating configuration. The PBFREE designation indicates lead-free plating, while TIN/LEAD indicates tin-lead plating. Confirm package type and marking codes align with design requirements before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component when low noise density and low reverse leakage are critical design constraints. Ensure the application voltage remains within the 3.9 V nominal specification and that power dissipation does not exceed 250 mW. Verify compatibility with DO-35 through-hole mounting requirements.

Single Zener Diodes Part Context

This part belongs to the 1N4614 through 1N4627 series of silicon Zener diodes manufactured by Central Semiconductor Corp. The series covers voltages from 1.8 V to 6.2 V, all housed in the DO-35 axial leaded case. These devices are specifically characterized for low noise and low current operations compared to standard Zener diodes.

Single Zener Diodes Replacement Considerations

Cross-reference with other manufacturers' 1N4622 equivalents or parts within the same 1N4614-4627 series family. Verify that substitute components meet the identical 250 mW power rating, DO-35 package dimensions, and low noise specifications.