1N4701 BK PBFREE

Overview

The Central Semiconductor Corp 1N4701 BK PBFREE is a silicon Zener diode designed for low-level applications requiring extremely low operating current and leakage. It operates within the 1N4678 through 1N4717 series, featuring a nominal Zener voltage of 14 V with a 5% tolerance range from 13.30 V to 14.70 V at a test current of 50 μA. The device supports a maximum power dissipation of 500 mW and maintains a junction temperature range of -65°C to +200°C. It utilizes a DO-35 axial leaded package.

Feature Summary

• Designed for applications requiring extremely low operating current (50μA) and low leakage characteristics.
• Provides stable voltage regulation with a tight 5% tolerance across the specified voltage range.
• Capable of operation in high-temperature environments with a maximum junction temperature of +200°C.

Applications

• Low-level voltage reference circuits
• Precision voltage regulation systems
• Electronic circuits requiring minimal quiescent current

Procurement Notes

Verify that the ordering suffix 'PBFREE' corresponds to lead-free plating as defined by manufacturer standards. Confirm the 'BK' designation indicates bulk packaging if specific packing requirements are necessary. Ensure the component meets RoHS compliance specifications required for the target assembly process before finalizing procurement orders.

Selection Notes

Select this component when circuit design demands a 14 V Zener reference with minimal power consumption. The 50 μA test current makes it suitable for battery-operated or energy-sensitive designs compared to higher current alternatives. Verify that the DO-35 package dimensions fit the available PCB real estate and that the 500 mW power rating accommodates the expected thermal load.

Part Context

This part belongs to the 1N4678 through 1N4717 series of low-level silicon Zener diodes manufactured by Central Semiconductor Corp. The series covers voltages from 1.8 V to 43 V, all sharing similar electrical profiles optimized for low-current operation. These devices are standard discrete components used in general-purpose electronics for voltage clamping and reference purposes.

Replacement Considerations

Compatible replacements include other manufacturers' 1N4701 variants meeting the same 14 V nominal voltage, 500 mW power rating, and DO-35 package constraints. Ensure substitute parts maintain equivalent leakage current and impedance characteristics to preserve circuit performance.

FAQ

What is the maximum reverse leakage current for the 1N4701?

The maximum reverse leakage current is 0.05 μA at a reverse voltage of 10.6 V.

How is the Zener voltage tolerance defined for this series?

The series features a 5% tolerance, meaning the actual Zener voltage will fall within ±5% of the nominal value specified in the datasheet.