1N4748A_R2_00001

Overview

The Panjit International Inc. 1N4748A_R2_00001 is a silicon Zener diode with a nominal voltage of 22V, housed in the DO-41 axial package. It features a maximum power dissipation of 1W at 25°C ambient temperature and operates within a junction temperature range of -55°C to +150°C. The device exhibits a maximum Zener impedance of 23 ohms at an test current of 11.5mA and a maximum leakage current of 0.1mA at 16.7V. It complies with EU RoHS 2.0 standards and carries UL 94V-O flammability classification for its plastic epoxy package.

Feature Summary

• Low inductance design suitable for standard circuit applications
• High temperature soldering capability up to 260°C for 10 seconds
• Lead-free construction compliant with EU RoHS 2.0 directives

Applications

• Voltage regulation circuits
• Overvoltage protection stages
• Reference voltage generation

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm packing type and quantity. Confirm that the component meets the required environmental compliance standards for your region. Ensure the DO-41 package dimensions align with your PCB footprint requirements before finalizing procurement orders.

Selection Notes

Select this component when a 22V unidirectional breakdown voltage is required for low-power regulation tasks. The DO-41 package provides robust axial leads for through-hole mounting. Consider the thermal derating curve if operating above 25°C ambient temperature to ensure the 1W power rating is not exceeded during steady-state conditions.

Part Context

This part belongs to the 1N4728A series of 1 Watt silicon Zener diodes manufactured by Panjit International Inc. The series covers a wide voltage range from 3.3V to 68V, all utilizing the same DO-41 molded plastic case. The 1N4748A variant specifically targets the 22V nominal breakdown point within this standardized product line.

Replacement Considerations

Cross-reference other manufacturers' 1N4748A equivalents to verify matching Zener voltage tolerance, impedance, and package dimensions. Ensure any substitute part maintains the same axial lead configuration and thermal characteristics for direct board replacement.