HCSO-1W

Automotive Open Loop Hall Effect Current Sensor

Piher Sensing Systems’ HCSO-1W family of open-loop Hall-effect current sensors delivers accurate, non-intrusive current measurement with galvanic isolation between power and control to enhance safety and reduce energy loss. Its ratiometric 0.5–4.5 V analog output makes ECU integration straightforward, and options for simple or redundant channels—including dual-range versions that cover both low and high currents (±25 A to ±1000 A)—let one platform scale across multiple designs. Flanged, wire-through mounting speeds installation and keeps insertion losses minimal. Built to stay precise from −40 °C to +125 °C and resist external magnetic interference, it delivers reliable measurements in harsh automotive and industrial environments.

Typical uses include BMS current measurement across EV/HEV/PHEV/BEV platforms, leakage detection and fault isolation in charging systems, current measurement in energy storage systems, and fault detection in heavy industrial equipment.

■ Open-loop current sensor based on Hall effect.
■ Dual-channel sensor for high and low currents (two ranges).
■ Flanged, cable/wire-through-hole. Busbar.
■ Simple or redundant analog ratiometric output
■ Galvanic isolation between power supply and control.
■ Measured current range from ±25 A to ±1000 A.
■ Non-invasive technology.
■ Operating temperature from -40°C to +125°C
■ Designed to be durable for use in transportation settings

KEY FEATURES



Accurate, non-intrusive measurement of currents with galvanic separation between power and control
Maintains precision from -40°C to 125°C
Need a custom sensor? Contact us now and learn how we can help
Designed to cope with external magnetic interferences.


SPECIFICATIONS



Parameter Unit
Supply voltage 5 V ±10%
Current consumption Typ. 26 mA
analog output 0.5 V to 4.5 V
Overvoltage protection +10 V
Creepage distance 3.95 mm
Clearance 3.95 mm
Connector TYCO 1-1564559-1
Max. mounting torque 2.5 N.m (M4x, 7mm)
Parameter Unit
Operating temperature -40°C to +125°C
IP-Rating IP67 / IP69K (not considering connector)

POTENTIAL APPLICATIONS



 

DOWNLOADS