Newly Launched | Sinomags TMR High-Frequency Coreless High-Current Sensor Module
December 20, 2025
SINOMAGS STK-BS/SG
200 ns & 1 MHz
TMR High-Frequency Coreless
High-Current Sensor Module
Officially Launched!!!
Amid the boom in high-frequency power electronics technology, the limitations of traditional current sensors in bandwidth, response speed or size can no longer meet the core demands of scenarios such as high-frequency power electronic equipment and precision testing instruments.
Against this background, Sinomags Technologies launches the upgraded STK-BS-SG current sensor module. Equipped with TMR core technology, the coreless design eliminates hysteresis loss. With 1 MHz bandwidth + 200 ns ultra-fast frequency response, it accurately captures high-frequency pulse currents. The 100 A-1000 A wide range covers diverse scenarios, inheriting the advantages of ±1% high precision and 4 kV high isolation, ensuring stability and reliability.
This product breaks industry limitations with a coreless solution. Its wide bandwidth, ultra-fast response, and large range empower equipment upgrades, delivering more efficient, accurate, and reliable current measurement solutions to customers across industries, and helping the industry move steadily toward high-frequency, precision, and miniaturization!
Performance Diagram：
1 MHz Bandwidth
200 ns Step Response Time
1. Innovative coreless design: Eliminates the use of traditional magnetic core structure, eliminates hysteresis loss and magnetic saturation issues, flexible installation, suitable for diverse scenarios;
2. 1 MHz ultra-wide bandwidth, 200 ns ultra-fast frequency response, breaks through traditional bandwidth limitations, accurately captures high-frequency current signals;
3. 100 A–1000 A wide range coverage, large current range, suitable for equipment of different power levels, reduces application costs;
4. Adopts Tunnel Magnetoresistance (TMR) technology;
5. ±1% high accuracy, 4 kV high isolation voltage, stability and reliability have been proven in the market.
Typical Applications：
High-Frequency Switching Power Supply
AC Variable Frequency Drive /Welding Machine Power Supply
Charging Pile and Energy Storage System
Photovoltaic Inverter
