1N5819RL

Overview

The onsemi 1N5819RL is a Schottky Barrier Rectifier in the 1N581x series, rated for 40 V peak repetitive reverse voltage and 1.0 A average rectified forward current. It utilizes chrome barrier metal and epitaxial construction within an axial lead DO-41 package (Case 59). The device operates with a junction temperature range of -65°C to +125°C and supports non-repetitive peak surge currents up to 25 A. Electrical characteristics include a maximum instantaneous forward voltage of 0.6 V at 1.0 A and a maximum reverse current of 1.0 mA at rated DC voltage.

Feature Summary

• Employs Schottky Barrier principle with majority carrier conduction for low stored charge
• Features extremely low forward voltage drop and negligible switching losses
• Suitable for high-frequency operation up to several megahertz
• Includes avalanche capability specification

Applications

• Low-voltage, high-frequency inverters
• Free wheeling diodes
• Polarity protection circuits
• Switch mode power supplies

Procurement Notes

Verify the specific ordering suffix RL indicates tape and reel packaging containing 5000 units per reel as documented in the manufacturer's ordering information. Confirm that the component meets Pb-Free requirements through the /C0071 marking or G suffix if applicable. Ensure compatibility with standard axial lead mounting methods and verify thermal resistance parameters against specific circuit board configurations before finalizing procurement specifications.

Selection Notes

Select this component when designing circuits requiring low forward voltage drop and fast switching speeds at 40 V reverse blocking levels. Consider the 1.0 A continuous current rating and 25 A surge capability for load conditions. Evaluate thermal management needs based on the junction-to-ambient thermal resistance values provided for different lead lengths and mounting styles to ensure operation within the specified temperature limits.

Part Context

This part belongs to the 1N5817, 1N5818, and 1N5819 series of axial lead rectifiers manufactured by onsemi. The series shares identical mechanical case dimensions and general operational principles, differing primarily in their peak repetitive reverse voltage ratings of 20 V, 30 V, and 40 V respectively. The 1N5819 represents the highest voltage variant within this specific family configuration.

Replacement Considerations

Direct substitutes within the same series include the 1N5817 and 1N5818, though they offer lower reverse voltage ratings of 20 V and 30 V respectively. Verify that any replacement maintains the required 40 V blocking capability and matches the axial lead package dimensions for physical compatibility.