1N4624 BK PBFREE

Overview

The Central Semiconductor Corp 1N4624 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 4.7V at a test current of 250µA. The device features a 5% tolerance, a maximum power dissipation of 250mW, and a reverse current of 10µA at 3.0V. It utilizes a DO-35 axial package and supports junction temperatures from -65°C to +200°C.

Feature Summary

• Designed for low leakage, low current, and low noise applications
• Features a 5% tolerance on Zener voltage
• Supports high junction temperature operation up to +200°C

Applications

• Low noise reference circuits
• Precision voltage regulation
• Low current protection

Procurement Notes

Verify the specific ordering suffix required for plating options when purchasing. The 'PBFREE' designation indicates lead-free plating, while 'TIN/LEAD' is available upon request by modifying the part number. Confirm availability through authorized distributors as stock levels fluctuate. Ensure the component meets RoHS compliance requirements for your assembly process before finalizing procurement orders.

Selection Notes

Select this component for designs requiring stable voltage references in low-power environments. The DO-35 package suits through-hole mounting. Consider the 250mW power rating and 4.7V nominal voltage when designing bias networks. Verify that the low noise characteristic aligns with signal integrity requirements for sensitive analog stages.

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 1.8V to 6.2V. These devices are characterized by their low noise density and tight tolerance specifications, making them suitable for precision analog applications where standard Zener diodes might introduce excessive noise or voltage drift.

Replacement Considerations

Direct replacements include other manufacturers' 1N4624 variants. Ensure substitute parts match the 4.7V nominal voltage, 250mW power rating, and DO-35 package dimensions. Verify that alternative components meet the same low noise and low leakage specifications if these are critical to the circuit design.