GO-SMS Demonstration Boards

LEM compact demo boards are designed for precise AC/DC current sensing with galvanic isolation and dual overcurrent protection

Image of LEM USA GO-SMS Demonstration BoardsThe GO series is the first integrated current sensor from LEM USA, developed to meet growing industry demand for compact, cost-effective current-sensing solutions. Drawing on 15 years of ASIC design expertise, the GO-SMS supports accurate AC and DC current measurement across a wide range of industrial and automotive applications. From small drives and e-bikes to inverters, DC/DC converters, white goods, and onboard chargers, the GO-SMS offers a standard package design with a minimal footprint, making it an ideal choice for space and cost-sensitive systems.

The GO-SMS is an advanced integrated current transducer that enhances precision and robustness in challenging environments. Leveraging a differential sensing technique, it effectively cancels out external magnetic interference, while proprietary stress and temperature compensation algorithms ensure excellent accuracy across wide temperature ranges. With a low primary conductor resistance of 0.75 mΩ and current measurement capabilities from 30 A to 75 A, the GO-SMS delivers high performance with minimal power loss. Integrated internal and external overcurrent detection circuits add fast, flexible protection, while galvanic insulation between the primary and secondary sides eliminates the need for additional component streamlining design and reducing overall system cost.

Features
  • Open loop multi-range current sensor: 75 A
  • Low electrical resistance 0.75 mΩ
  • Dual supply voltage 5 V or 3.3 V
  • Dual overcurrent detection
  • Low power consumption
  • High bandwidth: 300 kHz
  • No magnetic hysteresis
  • Galvanic separation between primary and secondary with 7.4 mm of dCl and 7.4 mm of dCp
  • Insulated test voltage 4800 VRMS (UL 62368)
  • Small footprint with standard surface-mount PCB mounting
  • AEC-Q100 Grade 1
Applications
  • Small drives
  • HVAC inverters
  • Appliances
  • Solar inverters
  • Automotive and industry qualified

GO-SMS Demonstration Boards

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
GO 30-SMS/SP3 DEMO BOARDGO 30-SMS/SP3 DEMO BOARDGO 30-SMS/SP3 DEMO BOARD8 - Immediate$155.93View Details
GO 10-SMS DEMO BOARDGO 10-SMS DEMO BOARDGO 10-SMS DEMO BOARD10 - Immediate$155.93View Details
GO 20-SMS DEMO BOARDGO 20-SMS DEMO BOARDGO 20-SMS DEMO BOARD10 - Immediate$155.93View Details
EVAL BOARD FOR GO 20-SMS/SP3GO 20-SMS/SP3 DEMO BOARDEVAL BOARD FOR GO 20-SMS/SP38 - Immediate$155.93View Details
GO 10-SMS/SP3 DEMO BOARDGO 10-SMS/SP3 DEMO BOARDGO 10-SMS/SP3 DEMO BOARD10 - Immediate$155.93View Details
GO 30-SMS DEMO BOARDGO 30-SMS DEMO BOARDGO 30-SMS DEMO BOARD0 - Immediate$311.00View Details
GO 4-SMS/SP3 DEMO BOARDG2.07.07.103.0GO 4-SMS/SP3 DEMO BOARD9 - Immediate$311.00View Details
Published: 2025-12-09