CLL4741A BK PBFREE

Single Zener Diodes Overview

The CLL4741A BK PBFREE is a surface-mount Zener diode manufactured by Central Semiconductor Corp. It features an 11 V nominal Zener voltage with a ±5% tolerance and a 1 W power dissipation rating. The component utilizes a MELF (DO-213AB) package for compact integration. Key electrical specifications include a maximum reverse leakage current of 5 μA at 15.2 V and a test current of 30 mA. It operates within a junction temperature range of -65°C to 200°C, ensuring reliability in demanding thermal environments.

Single Zener Diodes Feature Summary

• Surface-mount construction utilizing the MELF (DO-213AB) package for automated assembly compatibility
• High-temperature operation capability with a junction range extending up to 200°C
• Precision voltage regulation with a tight ±5% tolerance on the 11 V nominal rating

Single Zener Diodes Applications

• Voltage reference circuits requiring stable DC levels
• Over-voltage protection stages in compact electronic assemblies
• Clamping applications in high-temperature industrial control systems

Single Zener Diodes Procurement Notes

Verify the specific suffix 'BK' against the manufacturer's latest documentation to confirm packaging details, as suffixes often denote tape-and-reel or bulk variations. Confirm RoHS compliance status directly with Central Semiconductor, as regulatory updates may affect the 'PBFREE' designation. Ensure the MELF package footprint matches the target PCB design constraints before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component when a robust, high-temperature Zener diode is required in a small surface-mount form factor. The 1 W power rating supports moderate current handling, while the 200°C junction limit exceeds standard commercial grades. Compare the 5 μA leakage specification against circuit requirements to ensure minimal standby current impact. Validate that the 11 V breakdown voltage aligns precisely with the target clamping or reference level.

Single Zener Diodes Part Context

This part belongs to the CLL4741 series of single Zener diodes from Central Semiconductor. These devices are designed for general-purpose voltage regulation and protection in surface-mount applications. The series offers various voltage options within the same MELF package, allowing for design flexibility while maintaining consistent mechanical and thermal characteristics across different voltage ratings.

Single Zener Diodes Replacement Considerations

Direct replacements must match the 11 V Zener voltage, 1 W power rating, and MELF (DO-213AB) package. Verify that substitute components offer comparable leakage currents and high-temperature ratings. Cross-reference pinout configurations to ensure compatibility with existing PCB footprints without redesigning the layout.