1N2818B PBFREE

Overview

The 1N2818B PBFREE is a Zener diode manufactured by Central Semiconductor Corp. It features a nominal Zener voltage of 36 V with a tolerance of ±5%. The device has a maximum power dissipation of 50 W and operates in the through-hole TO-3 package. Key electrical characteristics include a maximum impedance of 0.4 Ohms and a reverse leakage current of 5 µA at 76 V. The component supports a junction temperature range from -65°C to 175°C.

Feature Summary

• High power handling capability for robust voltage regulation
• Low impedance for stable reference performance
• Wide operating temperature range for harsh environments

Applications

• High-power voltage regulation circuits
• Overvoltage protection systems
• Industrial control equipment

Procurement Notes

Verify the specific datasheet revision and RoHS compliance status directly with Central Semiconductor or authorized distributors before procurement. Confirm that the TO-3 package dimensions match the target PCB or chassis mounting requirements. Ensure thermal management solutions are adequate for the 50 W power dissipation rating under actual operating conditions.

Selection Notes

Select this component when a high-power, low-impedance Zener reference is required in a through-hole configuration. The 36 V nominal voltage suits applications needing precise regulation above standard logic levels. Consider the TO-3 package size and thermal resistance when designing the heat sinking strategy for continuous operation.

Part Context

Central Semiconductor specializes in discrete semiconductor products, including Zener diodes like the 1N2818B. This part belongs to their standard series designed for reliability in demanding industrial and commercial applications. The company emphasizes custom solutions and niche products alongside standard offerings.

Replacement Considerations

• 1N2818