1N4678 BK PBFREE

Single Zener Diodes Overview

The Central Semiconductor Corp 1N4678 BK PBFREE is a silicon Zener diode designed for low-level applications requiring extremely low operating current and leakage. It features a nominal Zener voltage of 1.8 V with a 5% tolerance, tested at a current of 50 μA. The device supports a maximum power dissipation of 500 mW and operates within a junction temperature range of -65°C to +200°C. Maximum reverse leakage current is specified at 7.5 μA, while the maximum regulator current is 120 mA.

Single Zener Diodes Feature Summary

• Designed for applications requiring extremely low operating current and low leakage
• Utilizes a DO-35 through-hole package for standard mounting
• Provides stable voltage regulation across a wide thermal operating range

Single Zener Diodes Applications

• Low-level voltage reference circuits
• Precision voltage regulation in sensitive electronics
• Protection against voltage spikes in low-power systems

Single Zener Diodes Procurement Notes

Verify that the ordering suffix 'PBFREE' confirms lead-free plating compliance as per manufacturer standards. Confirm the specific 'BK' variant matches the required tin/lead or lead-free specification if applicable to your design constraints. Ensure the DO-35 package dimensions align with your PCB layout requirements before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when circuit designs demand minimal quiescent current consumption alongside precise low-voltage regulation. The 1.8 V nominal rating suits applications where higher voltage Zeners are unsuitable. Verify that the 500 mW power dissipation capability meets the thermal management requirements of the target environment.

Single Zener Diodes Part Context

This part belongs to the 1N4678 series, which covers a range of low-level silicon Zener diodes from 1.8 V to 43 V. All devices in this series share common characteristics such as 5% tolerance and operation at a 50 μA test current, ensuring consistent performance profiles across the family for various low-voltage needs.

Single Zener Diodes Replacement Considerations

Public confirmed substitute part numbers: None identified.