MID400W

Overview

The MID400W is an optically isolated AC line monitor device manufactured by onsemi. It provides a single channel of isolation with a rated voltage of 2500Vrms. The component accepts both AC and DC input signals and features a logic output capable of sourcing up to 20mA per channel. Key electrical parameters include a maximum forward current of 30mA, a typical forward voltage of 1.5V, and a supply voltage of 7V. Propagation delays are specified at a maximum of 1ms for both low-to-high and high-to-low transitions. The device operates within a temperature range of -40°C to 85°C and is housed in an 8-MDIP package.

Feature Summary

• Provides optical isolation between AC/DC input lines and logic outputs
• Designed specifically for AC line monitoring applications
• Features a robust 2500Vrms isolation barrier

Applications

• AC line monitoring circuits
• Logic interface for AC power systems
• Isolated signal transmission from AC sources

Procurement Notes

Verify the specific suffix 'W' against official documentation to confirm package type and pinout compatibility. Note that this product status is listed as obsolete or discontinued; ensure alternative sourcing strategies are in place. Confirm RoHS compliance status through current datasheets before integration into new designs.

Selection Notes

Select this component when AC line monitoring with high-voltage isolation is required. Ensure the input signal characteristics match the AC/DC input capability. Verify that the 20mA output current meets the load requirements of the downstream logic circuit. Check thermal limits against the operating environment constraints.

Part Context

The MID400W belongs to the MID400 series of optocouplers designed for AC line-to-logic interfacing. It shares functional similarities with other devices in the family but is distinguished by its specific packaging and termination style. The series targets industrial applications requiring reliable isolation for power line detection.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided data. As the MID400W is marked as obsolete, consult manufacturer resources for direct replacements or cross-reference compatible AC monitor optocouplers with matching isolation voltages and packages.