1N5239B BK PBFREE

Single Zener Diodes Overview

The Central Semiconductor Corp 1N5239B BK PBFREE is a silicon Zener diode in the DO-35 through-hole package. It provides a nominal Zener voltage of 9.1 V with a ±5% tolerance, ranging from 8.645 V to 9.555 V. The device dissipates up to 500 mW at 75°C and operates within a junction temperature range of -65°C to +200°C. Electrical characteristics include a maximum Zener impedance of 10 Ω at a test current of 20 mA, a maximum reverse leakage current of 3 µA at 7 V, and a positive temperature coefficient of +0.068 %/°C.

Single Zener Diodes Feature Summary

• High reliability voltage regulation for industrial and commercial applications
• Lead-free plating option available via specific ordering suffix
• Wide operating and storage temperature capability

Single Zener Diodes Applications

• Industrial equipment voltage regulation
• Commercial circuit protection
• Entertainment system power management
• Computer application voltage reference

Single Zener Diodes Procurement Notes

Verify the exact ordering suffix required for your manufacturing specifications. The 'BK' designation indicates bulk packaging, while 'PBFREE' confirms lead-free plating compliance. Confirm current production status directly with the manufacturer or authorized distributors, as high-voltage devices in this series may be subject to discontinuation notices or limited availability.

Single Zener Diodes Selection Notes

Select this component when a standard 9.1 V reference is needed in a through-hole configuration. Ensure the circuit design accommodates the specified 500 mW power dissipation limit and the thermal resistance requirements. Verify that the ±5% voltage tolerance aligns with the precision needs of the target application before finalizing the part selection.

Single Zener Diodes Part Context

This component belongs to the 1N5221B through 1N5278B series of silicon Zener diodes manufactured by Central Semiconductor. The series covers a voltage range from 2.4 V to 170 V, all housed in the DO-35 case. The 'B' suffix specifically denotes the ±5% voltage tolerance variant within this product family.

Single Zener Diodes Replacement Considerations

No public confirmed substitute part numbers are documented for this specific component.