1N4477 TR PBFREE

Single Zener Diodes Overview

The Central Semiconductor Corp 1N4477 TR PBFREE is a silicon Zener diode from the 1N4460 series, housed in a DO-41 axial leaded package. It provides a nominal Zener voltage of 33 V with a 5% tolerance range spanning 31.35 V to 34.65 V at a test current of 7.5 mA. The device supports a maximum power dissipation of 1.5 W and operates within a junction temperature range of -65°C to +200°C. Maximum reverse leakage current is specified at 0.05 μA.

Single Zener Diodes Feature Summary

• Designed for high-quality voltage regulation applications
• Capable of handling peak non-repetitive surge currents up to 0.66 A
• Constructed using silicon technology for stable performance

Single Zener Diodes Applications

• Automotive electronics systems
• Industrial control circuits
• Commercial equipment power supplies
• Computer system protection

Single Zener Diodes Procurement Notes

This component has been officially discontinued by the manufacturer and is classified as End of Life (EOL). Orders are restricted to existing inventory on hand only. No new production runs are scheduled. Buyers must verify stock availability directly with authorized distributors or sales representatives before placing any purchase orders.

Single Zener Diodes Selection Notes

Engineers should evaluate alternative components immediately due to the EOL status. Verify that replacement parts meet the required 33 V nominal voltage, 1.5 W power rating, and DO-41 package dimensions. Ensure the substitute device maintains equivalent electrical characteristics for automotive and industrial environments.

Single Zener Diodes Part Context

The 1N4477 belongs to the 1N4460 through 1N4496 series of silicon Zener diodes manufactured by Central Semiconductor. This family offers voltages ranging from 6.2 V to 200 V with consistent 5% tolerance across all part numbers. The series utilizes the standard DO-41 case style for reliable axial mounting.

Single Zener Diodes Replacement Considerations

No official replacement part numbers are provided by the manufacturer for this specific model. Customers requiring assistance locating an alternate source must submit an online inquiry through the manufacturer's support portal.