1N4623 TR PBFREE

Overview

The Central Semiconductor Corp 1N4623 TR PBFREE is a silicon Zener diode designed for low leakage, low current, and low noise applications. It features a nominal Zener voltage of 4.3 V with a 5% tolerance range spanning from 4.085 V to 4.515 V at a test current of 250 µA. The device operates within a power dissipation limit of 250 mW and supports junction temperatures from -65°C to +200°C. Key electrical specifications include a maximum reverse current of 4.0 µA at 2.0 V, a maximum Zener impedance of 1600 Ω, and a constant noise density of 1.0 µV/√Hz at 250 µA.

Feature Summary

• Engineered specifically for low leakage and low noise performance in sensitive circuits
• Provides stable voltage regulation with tight 5% tolerance across the operating temperature range
• Utilizes a DO-35 axial leaded package suitable for through-hole mounting

Applications

• Low noise voltage reference circuits
• Precision biasing networks requiring minimal leakage current
• Sensitive analog signal conditioning stages

Procurement Notes

Verify that the ordering suffix PBFREE confirms lead-free plating compliance as specified by the manufacturer. Ensure the reel packaging matches the required quantity increments for automated assembly processes. Confirm RoHS status and environmental declarations align with project regulatory requirements before finalizing procurement orders.

Selection Notes

Select this component when circuit design demands low noise characteristics combined with precise voltage regulation at approximately 4.3 volts. The DO-35 package facilitates standard through-hole integration. Consider the specific impedance and leakage parameters to ensure compatibility with high-impedance input stages or precision reference applications.

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 similar low-noise and low-leakage design attributes. These devices are intended for applications where standard Zener diodes may introduce excessive noise or current drift.

Replacement Considerations

Cross-reference with other manufacturers offering 1N4623 equivalents in the DO-35 package. Verify that substitute parts meet the same 5% tolerance, 250 mW power rating, and low noise density specifications to maintain circuit performance integrity.