1N5290 BK TIN/LEAD

Overview

The 1N5290 BK TIN/LEAD is a Zener diode manufactured by Central Semiconductor Corp, designed for through-hole mounting in the DO-35-2 axial package. It features a nominal Zener voltage of 68 V with a tolerance of ±5%, resulting in a range of 64.6 V to 71.4 V. The device dissipates up to 500 mW at rated conditions and operates within a junction temperature range of -65°C to +200°C. Key electrical parameters include a maximum reverse leakage current of 5 µA at 50 V, a Zener impedance of 40 Ω at the test current of 3.7 mA, and a forward voltage drop of 1.1 V at 200 mA.

Feature Summary

• Provides stable voltage regulation via Zener breakdown characteristics in the DO-35-2 through-hole package.
• Capable of operating reliably across an extended temperature range from -65°C to +200°C.
• Features low reverse leakage current to minimize power loss in non-conducting states.

Applications

• Voltage reference circuits requiring precise 68 V stabilization.
• Overvoltage protection stages in electronic systems.
• Clamping applications in signal processing paths.

Procurement Notes

Verify the specific ordering suffix against official Central Semiconductor documentation to confirm lead-free or tin/lead plating options, as suffixes dictate material composition. Confirm RoHS compliance status directly with the manufacturer or authorized distributors, as environmental declarations vary by production batch and region. Ensure the DO-35-2 package dimensions match your PCB footprint requirements before finalizing procurement orders.

Selection Notes

Select this component when a 68 V Zener voltage is required in a standard axial glass-passivated package. The 500 mW power rating suits low-current regulation tasks. Verify that the 40 Ω impedance meets your noise and stability requirements. Compare the 5 µA leakage specification against circuit sensitivity needs. Ensure the operating environment stays within the specified -65°C to +200°C thermal limits for reliable performance.

Part Context

This part belongs to the 1N52xxB series of Zener diodes produced by Central Semiconductor Corp. The 'B' suffix typically denotes a tighter voltage tolerance compared to standard variants. The series utilizes glass-passivated junctions for durability. The DO-35-2 package is a common industry standard for low-power axial diodes, facilitating easy integration into legacy and modern through-hole designs.

Replacement Considerations

Cross-reference with other manufacturers offering 1N5290 equivalents in the DO-35 package. Verify that substitute parts maintain the 68 V nominal voltage, 500 mW power dissipation, and similar impedance characteristics. Check for pinout compatibility and thermal performance similarities to ensure seamless replacement without circuit redesign.