1N4678 BK PBFREE

$0.16

Description：DIODE ZENER 1.8V 500MW DO35
Series：-
Mfr：Central Semiconductor Corp
Package：Bulk

SKU:4bb2810d148f Category: Single Zener Diodes Brand: Central Semiconductor Corp

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Product introduction

Product Detailed Parameters

Description：DIODE ZENER 1.8V 500MW DO35
Series：-
Mfr：Central Semiconductor Corp
Package：Bulk
Voltage - Zener (Nom) (Vz)：1.8 V
Tolerance：±5%
Power - Max：500 mW
Impedance (Max) (Zzt)：-
Current - Reverse Leakage @ Vr：7.5 µA @ 1 V
Operating Temperature：-65°C ~ 200°C (TJ)
Mounting Type：Through Hole
Package / Case：DO-204AH, DO-35, Axial
Voltage - Forward (Vf) (Max) @ If：1.5 V @ 100 mA
Grade：-
Qualification：-

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1N4678 BK PBFREE

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.

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

Applications

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

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.

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.

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.