1N5371BRLG

Overview

The onsemi 1N5371BRLG is a silicon Zener diode with a nominal voltage of 60 V and ±5% tolerance. It operates in an axial lead package (Case 017AA) rated for 5 W power dissipation at 25°C, derating to 40 mW/°C above this temperature. The device features a maximum reverse leakage current of 1.2 mA at 45.5 V breakdown voltage and a maximum Zener impedance of 40 Ω at the test current of 20 mA. It supports a maximum DC regulator current of 79 mA and withstands non-repetitive surge currents up to 8.3 ms pulse widths.

Feature Summary

• Utilizes silicon-oxide passivated junctions for improved operating characteristics and environmental protection within a transfer-molded plastic case.
• Provides high surge capability with ratings up to 180 W for 8.3 ms pulses, suitable for transient suppression applications.
• Guarantees maximum limits on multiple electrical parameters including voltage, impedance, and leakage current for consistent performance.

Applications

• Voltage regulation in power supply circuits
• Transient voltage suppression against surges
• Reference voltage sources in electronic 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 JEDEC type number designation for the required voltage tolerance and electrical characteristics.

Selection Notes

Select this component when a 60 V Zener voltage with tight ±5% tolerance is required for steady-state regulation. Consider the 5 W power rating and thermal resistance characteristics for heat sinking requirements. Evaluate the maximum surge current capabilities against expected transient events in the target application circuit.

Part Context

This part belongs to the 1N53 Series of 5 Watt Surmetic 40 Zener Voltage Regulators manufactured by onsemi. The series covers a wide voltage range from 3.3 V to 200 V, offering various options for different regulation needs while maintaining consistent mechanical and electrical quality standards across the product line.

Replacement Considerations

Cross-reference with other manufacturers' 1N5371B equivalents or generic 60V 5W Zener diodes in the DO-201AE package. Verify that substitute parts meet the same electrical limits for Zener voltage, impedance, and surge current ratings to ensure functional compatibility.

FAQ

What is the maximum non-repetitive surge current rating for the 1N5371B?

The device can withstand a maximum non-repetitive surge current of up to 180 W for an 8.3 ms pulse width, as specified in the datasheet.

How does the package marking indicate polarity?

Polarity is indicated by a color band on the external surface of the plastic case, which denotes the cathode end of the diode.