1N4626 BK PBFREE

Overview

The Central Semiconductor Corp 1N4626 BK PBFREE is a silicon Zener diode designed for low leakage, low current, and low noise applications. It operates within the 1N4614 through 1N4627 series, featuring a nominal Zener voltage of 5.6 V with a 5% tolerance range spanning from 5.320 V to 5.880 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 4.0 µA at 4.0 V, a maximum Zener impedance of 10 Ω, and a noise density of 4.0 µV/√Hz at 250 µA.

Feature Summary

• Engineered for low leakage and low noise performance suitable for sensitive circuits
• Provides stable voltage regulation within a tight 5% tolerance band
• Capable of operation across an extended thermal range up to +200°C

Applications

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

Procurement Notes

Verify the specific ordering suffix required for your manufacturing process. The PBFREE designation indicates lead-free plating compliance. Confirm package availability and RoHS status directly with the manufacturer or authorized distributors before finalizing procurement plans to ensure alignment with environmental regulations.

Selection Notes

Select this component when circuit requirements demand minimal noise generation alongside precise voltage clamping. The DO-35 axial leaded package facilitates standard through-hole mounting. Ensure the 250 mW power dissipation rating accommodates the expected thermal environment without exceeding the maximum junction temperature limits defined in the datasheet.

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 sharing identical mechanical outlines and general electrical profiles while differing in specific breakdown parameters. These devices are intended for applications requiring reliable performance in low-power environments.

Replacement Considerations

Cross-reference with other manufacturers offering DO-35 packaged Zener diodes rated at 5.6 V with comparable noise and impedance specifications. Verify that alternative components meet the same 250 mW power dissipation and temperature range requirements to ensure functional compatibility.