1N5259B BK PBFREE

Single Zener Diodes Overview

The Central Semiconductor Corp 1N5259B BK PBFREE is a silicon Zener diode from the 1N5221B series, housed in a DO-35 axial leaded package. It provides a nominal Zener voltage of 39 V with a ±5% tolerance range spanning 37.05 V to 40.95 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 80 Ω at the test current of 3.2 mA, a reverse leakage current of 0.1 μA at 30 V, and a positive temperature coefficient of +0.094 %/°C.

Single Zener Diodes Feature Summary

• High-reliability voltage regulation for industrial and commercial applications
• Lead-free plating compliant with RoHS standards
• 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 component authenticity by checking for the 'C' prefix followed by the full part number or the specific marking code on the device body. Confirm that the ordering suffix 'PBFREE' matches the required lead-free specification. Ensure the 'BK' designation aligns with bulk packaging requirements. Validate compliance with environmental regulations such as REACH status prior to finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component when a stable 39 V reference is required in through-hole designs. The DO-35 package suits standard PCB layouts. Consider the positive temperature coefficient for thermal stability needs. Verify that the 500 mW power dissipation rating meets the circuit's thermal constraints under maximum ambient conditions.

Single Zener Diodes Part Context

This part belongs to the 1N5221B through 1N5278B series of silicon Zener diodes manufactured by Central Semiconductor Corp. The series covers voltages from 2.4 V to 170 V with 5% tolerance options. These devices are designed for robust performance in demanding electronic environments requiring precise voltage control.

Single Zener Diodes Replacement Considerations

No public confirmed substitute part numbers are available for this component.