1N5379B

Overview

The onsemi 1N5379B is a silicon Zener voltage regulator diode belonging to the 1N5333B series. It features a nominal Zener voltage of 110 V with a ±5% tolerance, operating within a range of 104.5 V to 115.5 V. The device is rated for a maximum steady-state power dissipation of 5 W at a lead temperature of 75°C and utilizes an axial-lead Surmetic 40 plastic package. Electrical characteristics include a reverse leakage current of 0.5 µA at 83.6 V and a maximum dynamic impedance of 125 Ω at a test current of 12 mA.

Feature Summary

• Utilizes silicon-oxide passivated junctions for tight electrical limits and superior operating characteristics.
• Features a void-free, transfer-molded thermosetting plastic package providing corrosion resistance and environmental protection.
• Includes high surge capability rated up to 180 W for 8.3 ms pulses.

Applications

• Voltage regulation in electronic circuits requiring stable reference voltages.
• Overvoltage protection for sensitive components against transient spikes.
• Clamping applications in industrial equipment power supplies.

Procurement Notes

Verify that the component matches the specific 1N5379B designation to ensure correct 110 V rating. Confirm package type is axial lead Surmetic 40. Check datasheet revisions for updated thermal derating curves. Ensure handling procedures respect the maximum lead soldering temperature specifications.

Selection Notes

Select this component when a precise 110 V regulation point is required with moderate power handling capabilities. Consider the 125 Ω dynamic impedance for noise-sensitive designs. Evaluate thermal management requirements based on the 5 W dissipation limit and ambient operating conditions.

Part Context

This part belongs to the 1N5333B series, which covers a wide voltage range from 3.3 V to 200 V. All devices in this series share common mechanical characteristics and packaging standards, offering consistent performance across various voltage ratings for general-purpose regulation tasks.

Replacement Considerations

Cross-reference with other manufacturers' 1N5379B equivalents ensuring identical 110 V nominal voltage, 5 W power rating, and ±5% tolerance. Verify package compatibility and thermal resistance values before substitution.