1N5373BRLG

Overview

The onsemi 1N5373BRLG is a single-channel Zener voltage regulator diode from the 1N53 Series, housed in an axial lead Surmetic 40 (Case 017AA) package. It features a nominal Zener voltage of 68 V with a ±5% tolerance and a maximum steady-state power dissipation of 5 W at 25°C. The device operates within a junction temperature range of -65°C to +200°C and includes silicon-oxide passivated junctions for environmental protection.

Feature Summary

• Utilizes silicon-oxide passivated junctions for superior operating characteristics and environmental protection
• Provides tight electrical limits guaranteed across multiple parameters including impedance and leakage
• Features high surge current capability rated up to 180 W for 8.3 ms pulses
• Offers robust ESD protection meeting Class 3 standards (>16 kV) per Human Body Model

Applications

• Voltage regulation in 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 tape and reel packaging format containing 4000 units per reel. Confirm the presence of the 'G' suffix indicates a Pb-Free package compliant with relevant directives. Ensure the component matches the specific 1N5373B designation for the 68 V nominal voltage variant within the series.

Selection Notes

Select this component when a 68 V reference or regulation point is required with a 5 W power handling capacity. The axial lead configuration facilitates through-hole mounting. Consider the thermal resistance characteristics and derating requirements above 25°C to ensure reliable operation under continuous load conditions.

Part Context

This part belongs to the 1N53 Series of 5 Watt Zener Voltage Regulators manufactured by onsemi. The series covers a wide Zener voltage range from 3.3 V to 200 V. All devices share common mechanical characteristics, including void-free transfer-molded plastic packages and corrosion-resistant finishes.

Replacement Considerations

Compatible substitutes include other manufacturers' parts adhering to the JEDEC 1N5373 specification with identical 68 V nominal voltage, 5 W power rating, and ±5% tolerance. Ensure replacement devices support the same axial lead package dimensions and thermal performance.