1N4624 TR PBFREE

Overview

The Central Semiconductor Corp 1N4624 TR PBFREE is a silicon Zener diode designed for low leakage, low current, and low noise applications. It features a nominal Zener voltage of 4.7 V with a 5% tolerance range spanning from 4.465 V to 4.935 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 parameters include a maximum reverse current of 10 µA at 3.0 V, a maximum Zener impedance of 1550 Ω, and a maximum noise density of 1.0 µV/Hz at 250 µA.

Feature Summary

• Engineered for low leakage and low noise performance in sensitive circuits
• Provides stable voltage regulation with tight 5% tolerance
• Capable of operation across an extended temperature range up to 200°C

Applications

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

Procurement Notes

Verify the specific ordering suffix required for your manufacturing process. The 'TR' designation indicates tape and reel packaging, while 'PBFREE' confirms lead-free plating compliance. Ensure that the procurement specifications align with the manufacturer's standard terms regarding environmental regulations and RoHS status before finalizing orders.

Selection Notes

Select this component when circuit requirements demand minimal noise interference and precise low-voltage stabilization. The 250 mW power rating suits low-current applications where higher dissipation devices are unnecessary. Consider the DO-35 axial package constraints for board layout and verify that the 1550 Ω impedance meets the dynamic regulation needs of the design.

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 the same 250 mW power dissipation and 5% tolerance characteristics. These devices utilize the DO-35 case style and are specifically optimized for applications requiring superior noise performance compared to standard Zener diodes.

Replacement Considerations

Direct substitutes must match the 4.7 V nominal voltage, 250 mW power rating, and DO-35 package. Verify that alternative manufacturers offer comparable noise density (1.0 µV/Hz) and impedance (1550 Ω) specifications to ensure functional equivalence in low-noise designs.