1N5267B BK

Single Zener Diodes Overview

The Central Semiconductor Corp 1N5267B BK is a silicon unidirectional Zener diode housed in a DO-35 axial leaded package. It provides a nominal Zener voltage of 75 V with a ±5% tolerance, rated for 500 mW power dissipation at 75°C lead temperature. The device operates within a junction and storage temperature range of -65°C to +200°C. Electrical characteristics include a maximum reverse current of 0.1 µA at 56 V and a maximum Zener impedance of 270 Ω at the test current of 1.7 mA.

Single Zener Diodes Feature Summary

• Highly reliable voltage regulation utilizing planar silicon construction
• Capable of withstanding extreme thermal environments up to 200°C
• Designed for automated assembly processes in industrial and commercial applications

Single Zener Diodes Applications

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

Single Zener Diodes Procurement Notes

This component has been officially transitioned to End of Life (EOL) status by Central Semiconductor Corp. No direct replacement part numbers are available from the manufacturer. Procurement should focus on verifying last-time buy availability or identifying alternative sources through engineering support channels, as standard supply chains no longer support this specific part number.

Single Zener Diodes Selection Notes

Select this component only if the specific 75 V Zener voltage and DO-35 form factor are required for legacy designs. Due to the EOL status, designers must evaluate long-term sustainability risks. Verify that the ±5% tolerance and 270 Ω impedance meet the circuit requirements before attempting to source remaining inventory or substitute parts.

Single Zener Diodes Part Context

The 1N5267B belongs to the 1N5221B through 1N5281B series of high-voltage silicon Zener diodes manufactured by Central Semiconductor Corp. This series is characterized by its 500 mW power rating and operation across a wide voltage range from 2.4 V to 170 V. The 'BK' suffix typically denotes bulk packaging, while the 'B' suffix indicates the ±5% voltage tolerance class.

Single Zener Diodes Replacement Considerations

No direct replacement part numbers are listed by the manufacturer for the 1N5267B BK. The datasheet explicitly states N/A for all replacements in this series. Users are advised to contact Central Semiconductor engineering for assistance in locating alternate sources.