1N4716 BK PBFREE

Overview

The Central Semiconductor Corp 1N4716 BK PBFREE is a silicon Zener diode from the 1N4678 series, designed for low-level applications requiring extremely low operating current and leakage. It features a nominal Zener voltage of 39 V with a 5% tolerance range (37.05 V to 40.95 V). The device operates at a test current of 50 μA and has a maximum reverse leakage current of 0.01 μA. It supports a power dissipation of 500 mW and a maximum regulator current of 6.1 mA. The component is housed in a DO-35 axial leaded package.

Feature Summary

• Designed for applications requiring extremely low operating current and low leakage characteristics
• Provides stable voltage regulation within a tight 5% tolerance band
• Capable of operation across a wide temperature range from -65°C to +200°C

Applications

• Low-level voltage regulation circuits
• Reference voltage sources in precision instrumentation
• Over-voltage protection in sensitive electronic systems

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 required for specific handling procedures. Ensure the part number matches the exact series specifications for the 39 V Zener voltage variant. Cross-reference the marking code C4716 on the physical component to validate authenticity against the datasheet table.

Selection Notes

Select this component when circuit design demands minimal quiescent current consumption alongside precise voltage clamping. The DO-35 package is suitable for through-hole mounting in standard industrial or commercial enclosures. Consider the 500 mW power rating relative to ambient thermal conditions to ensure junction temperatures remain within the specified -65°C to +200°C operational limits during continuous use.

Part Context

This device belongs to the 1N4678 through 1N4717 series of low-level silicon Zener diodes manufactured by Central Semiconductor Corp. The series covers a voltage range from 1.8 V to 43 V, all sharing common electrical characteristics such as 50 μA test current and 5% tolerance. The 1N4716 specifically targets the 39 V segment of this lineup, offering consistent performance metrics aligned with the broader family specifications.

Replacement Considerations

Direct parameter-equivalent substitutes include parts from other manufacturers designated as 1N4716. Verify that alternative sources maintain the same 500 mW power dissipation, DO-35 package outline, and 5% voltage tolerance to ensure functional compatibility without redesigning the host circuitry.