80SQ045NG

Overview

The 80SQ045NG is a silicon Schottky barrier rectifier manufactured by onsemi, designed for high-efficiency power conversion. It features an 8 A average forward current and a 45 V repetitive peak reverse voltage rating. The device utilizes a DO-201AD-2 (DO-204AB) axial leaded package suitable for through-hole mounting. Key electrical characteristics include a maximum forward voltage of 550 mV at 8 A and a low reverse leakage current of 1 mA. It supports a non-repetitive peak forward surge current of 140 A and operates within a junction temperature range of -65 °C to +125 °C.

Feature Summary

• Schottky barrier construction provides low forward voltage drop and minimal switching losses.
• High thermal stability allows reliable operation up to a maximum junction temperature of +125 °C.
• Robust surge current capability handles transient overloads effectively.

Applications

• DC-to-DC converters
• Power supply freewheeling circuits
• Reverse polarity protection

Procurement Notes

Verify the component authenticity against the official onsemi datasheet specifications. Confirm that the ordering part number matches exactly with the manufacturer's designation. Ensure compliance with RoHS and REACH requirements as documented in the environmental declarations. Check for any specific handling instructions related to the through-hole package during assembly.

Selection Notes

Select this component when a low-loss rectification solution is required for moderate voltage applications. The 45 V rating suits systems where voltage spikes are controlled. The through-hole package offers mechanical robustness for environments requiring higher vibration resistance compared to surface-mount alternatives. Consider the thermal management capabilities based on the specified operating temperature range.

Part Context

This device belongs to the 80SQ series of Schottky diodes from onsemi. The series is engineered for general-purpose rectification in power electronics. The specific model integrates silicon technology to balance performance and cost. It serves as a standard discrete semiconductor solution for industrial and consumer power supplies.

Replacement Considerations

Consult the official onsemi documentation for direct pin-compatible substitutes within the same series. Verify that any alternative component meets the identical 8 A current and 45 V voltage ratings. Ensure the replacement maintains the same DO-201AD-2 package style for board compatibility.