1N5357BRLG

Overview

The onsemi 1N5357BRLG is a silicon voltage regulator diode from the 1N53 Series, featuring a nominal Zener voltage of 20 V with a ±5% tolerance. It operates in an axial lead DO-15 package (Case 017AA) and supports a maximum steady-state power dissipation of 5 W at 25°C. The device exhibits a maximum Zener impedance of 3 Ω at a test current of 65 mA and a reverse leakage current of 0.4 µA at 15.2 V. It withstands a non-repetitive surge current of up to 237 A for an 8.3 ms pulse width.

Feature Summary

• Utilizes silicon-oxide passivated junction technology for stable operation
• Encased in void-free transfer-molded plastic providing environmental protection
• Offers high surge current capability for transient energy absorption

Applications

• Voltage regulation in DC power supply circuits
• Overvoltage protection for sensitive electronic components
• Reference voltage generation in measurement systems

Procurement Notes

Verify that the ordering suffix 'RLG' corresponds to the specific tape and reel packaging configuration required for automated assembly processes. Confirm compliance with RoHS directives and Pb-Free status as indicated by the 'G' suffix in the manufacturer's documentation before finalizing procurement specifications.

Selection Notes

Select this component when a precise 20 V reference is needed within a 5 W power envelope. Ensure the application circuit can accommodate the specified 65 mA test current and manage thermal resistance effectively. Verify that the operating temperature range aligns with the -65°C to +200°C limits defined in the datasheet.

Part Context

This part belongs to the 1N53 Series of 5 Watt Zener diodes manufactured by onsemi. The series provides a wide selection of voltages ranging from 3.3 V to 200 V in a standardized axial lead package. These devices are designed for applications requiring robust performance under common environmental conditions.

Replacement Considerations

Cross-reference with other manufacturers offering JEDEC registered 1N5357 equivalents. Verify that substitute parts match the 20 V nominal voltage, 5 W power rating, and DO-15 package dimensions to ensure mechanical and electrical compatibility.