VOM160NT

Overview

The VOM160NT is a single-channel optoisolator featuring a phototriac output, manufactured by Vishay Semiconductor Opto Division. It provides an isolation voltage of 3750Vrms between the input and output circuits. The device operates within a temperature range of -40°C to 100°C and is housed in a 4-SOP surface-mount package with a 2.54mm pitch. It functions as a non-zero crossing triac output optocoupler, designed for direct interface with AC lines.

Feature Summary

• Integrates a phototriac output for direct control of AC loads without requiring external zero-crossing detection circuitry.
• Provides high-voltage isolation capability of 3750Vrms to protect low-voltage logic from high-voltage AC line noise and transients.
• Utilizes a compact 4-SOP surface-mount package suitable for automated assembly and space-constrained designs.

Applications

• Isolating low-voltage logic from 120VAC, 240VAC, and 380VAC power lines for control purposes.
• Controlling resistive, inductive, or capacitive loads in solid-state relay applications.
• Interface circuits in industrial automation systems requiring galvanic isolation.

Procurement Notes

Verify the specific suffix 'NT' corresponds to the tape and reel packaging configuration when ordering. Confirm RoHS compliance status and lead time requirements directly with the manufacturer or authorized distributors, as standard lead times may vary. Ensure the 4-SOP package dimensions match the target PCB footprint design constraints prior to final procurement decisions.

Selection Notes

Select this component when non-zero crossing switching is acceptable or required for specific phase-control applications. The 3750Vrms isolation rating suits environments with significant potential differences between control and load sides. Consider the 5mA forward current requirement for the input LED and ensure the driving circuit can supply sufficient current to trigger the internal phototriac reliably under all operating conditions.

Part Context

This component belongs to the Vishay VOM series of optoisolators, specifically designed for triac and SCR output applications. The series offers various isolation voltages and package options to accommodate different industrial and consumer electronic needs. The VOM160NT represents a surface-mount variant optimized for modern PCB assembly techniques while maintaining robust electrical isolation performance.

Replacement Considerations

Check datasheets for alternative Vishay models such as the VOM160RT if reel packaging differs. Verify pinout compatibility and isolation voltage ratings before substituting with components from other manufacturers. Ensure the replacement part supports the same non-zero crossing functionality and operating temperature range.