CT428-HSN850MR

Current Sensors Overview

The CT428-HSN850MR is an XtremeSense TMR ultra-low noise current sensor manufactured by Allegro MicroSystems. It measures AC and DC currents up to ±50A with a sensitivity of 80mV/A. The device features a linear accuracy of ±0.7% and linearity of ±0.2%. It operates on a supply voltage of 4.75V to 5.5V with a maximum supply current of 9mA. The sensor has a response time of 300ns and supports frequencies from DC to 1MHz. It is housed in an 8-SOIC package (0.154" width) and functions bidirectionally within a temperature range of -40°C to 125°C.

Current Sensors Feature Summary

• Utilizes XtremeSense TMR technology for ultra-low noise performance.
• Provides bidirectional measurement capability for both AC and DC currents.
• Features high precision with ±0.7% linear accuracy and ±0.2% linearity.

Current Sensors Applications

• Motor control systems
• Power supply monitoring
• Industrial automation equipment

Current Sensors Procurement Notes

Verify the specific suffix MR against the official datasheet to confirm bidirectional functionality, as other suffixes may indicate different operational modes. Ensure the procurement channel provides valid traceability documentation. Cross-reference the 8-SOIC package dimensions with PCB layout requirements to guarantee mechanical compatibility. Confirm RoHS3 compliance status through the manufacturer's latest certification records before finalizing orders.

Current Sensors Selection Notes

Select this component when bidirectional current sensing is required for applications involving AC and DC loads up to 50A. The choice is driven by the need for low noise and high precision in magnetic field detection. Consider the 8-SOIC surface mount package for space-constrained designs. Evaluate the operating temperature range of -40°C to 125°C against environmental conditions. Compare sensitivity and accuracy specifications against system requirements to ensure signal integrity.

Current Sensors Part Context

The CT428 belongs to the XtremeSense Crocus series, leveraging TMR technology for advanced magnetic sensing. This series targets high-performance applications requiring precise current monitoring. The CT428 variant specifically offers bidirectional capabilities, distinguishing it from unidirectional models like the CT418. It represents Allegro's focus on integrating high-precision sensors into compact packages for modern electronic systems.

Current Sensors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify functional equivalence carefully if considering alternatives, particularly regarding bidirectional operation and package compatibility.

Current Sensors FAQ

Is the CT428-HSN850MR capable of measuring bidirectional currents?

Yes, the CT428-HSN850MR is designed to measure bidirectional AC and DC currents up to ±50A.

What is the operating temperature range for this sensor?

The sensor operates within a temperature range of -40°C to 125°C.