1N4473 BK TIN/LEAD

Single Zener Diodes Overview

The Central Semiconductor Corp 1N4473 BK TIN/LEAD is a silicon Zener diode with a nominal voltage of 22 V and a tolerance of ±5%. It operates within a power dissipation rating of 1.5 W at 25°C ambient temperature. The device features a maximum reverse current of 0.05 μA at 19 V and a DC current rating of 65 mA. Electrical characteristics include a test current of 11.5 mA, a maximum Zener impedance of 650 Ω at the test current, and a surge current capability of 1.1 A.

Single Zener Diodes Feature Summary

• Designed for high-quality voltage regulation in automotive, industrial, commercial, entertainment, and computer applications.
• Constructed using silicon technology to ensure stable performance across a wide operating junction temperature range from -65°C to +200°C.

Single Zener Diodes Applications

• Automotive electronics
• Industrial control systems
• Commercial equipment
• Entertainment devices
• Computer applications

Single Zener Diodes Procurement Notes

This component has been officially discontinued by Central Semiconductor Corp and is classified as End of Life (EOL). Orders are restricted to available inventory on hand only. Customers must verify stock availability directly with sales representatives before placing orders, as production has ceased and no new manufacturing runs are scheduled.

Single Zener Diodes Selection Notes

Select this part only if legacy compatibility is required and current inventory can be secured. Verify that the 1.5 W power dissipation and 22 V Zener voltage meet circuit requirements. Note that the Tin/Lead plating option is included in the discontinuation notice alongside Lead-Free variants.

Single Zener Diodes Part Context

The 1N4473 belongs to the 1N4460 through 1N4496 series of 1.5 Watt silicon Zener diodes manufactured by Central Semiconductor Corp. This series covers a voltage range from 6.2 V to 200 V with a consistent 5% tolerance. The specific 1N4473 variant provides a 22 V reference point within this broader product family.

Single Zener Diodes Replacement Considerations

No suggested replacement part numbers are provided by the manufacturer for the 1N4473 BK model. Customers requiring an alternative should contact Central Semiconductor support or consult third-party distributors for cross-reference options.

Single Zener Diodes FAQ

What is the status of the 1N4473 BK TIN/LEAD?

The 1N4473 BK TIN/LEAD is discontinued and classified as End of Life (EOL) by Central Semiconductor Corp.

Does the manufacturer provide a direct substitute for this part?

No, the manufacturer's Product Discontinuation Notice (PDN01280) lists 'N/A' for the suggested replacement of the 1N4473 BK.