# Current sensor, Hall, ACS758, linear, 3-5V

- Page: https://sigmanortec.ro/en/current-sensor-hall-acs758-linear-3-5v
- Price: 39.48 RON
- Availability: In stock; 1-2 zile
- Reference: 9584 · EAN: 5944987373182
- Category: Mechatronics and IoT > Sensors and Modules > Voltage and Current Sensors
- Specifications: Supply Voltage: 3; Maximum Input Voltage: 5; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.
- Package (shipping data): 0.008 kg
- Updated: 2026-09-14
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 04:49 (Europe/Bucharest)

## Description

Linear Hall current sensor module for precise measurement of DC current up to 50A, ideal for power supplies, inverters, motors and power monitoring. Operates at 3-5V, provides analog output proportional to current with Vout at rest VCC/2, sensitivity 40 mV/A and accuracy ±1.5%, with integrated filtering and amplification, compatible with Arduino and other boards.
The ACS758LCB-100B-PFF-T CJMCU-758 module, compatible with Arduino and other development boards, is a linear current sensor module, designed to detect and measure the current level in electrical circuits. This sensor module is compact, easy to use and offers an accurate and reliable solution for current measurement in a variety of applications.
The ACS758LCB-100B-PFF-T sensor is based on magnetic field detection technology and is capable of measuring direct current up to 50A, with an accuracy of ± 1.5%. This sensor has a sensitivity of 40 mV/A, which means that its output is proportional to the level of current passing through the circuit.
The CJMCU-758 module is provided with an amplification and filtering circuit, which helps improve the performance of the sensor and eliminate noise.
Relationship between output voltage and input current: VOUT=VOUT (Q) + Vsens (Q) x I VOUT (Q) -> represents the quiescent output voltage, which is VCC/2, i.e. the output voltage when there is no input . Vsens is a sensor-sensitive scale, also known as a coefficient. I represents the current flowing from IP+ to IP-. For example, suppose the sensor model is 050B, VCC is 5V, and the current I is 10A, then the output is 5V / 2+40mV/A x10A=2.9V.
Specifications:
Supply voltage: 3 - 5VDC (Maximum 8V)
Sensor model: ACS758LCB-100B-PFF-T
Maximum measuring current: 50A
Sensitivity: 40 mV/A
Accuracy: ± 1.5%
Static output voltage: VCC/2
Power consumption: <20mA
Maximum output current: 3mA (VIOUT-GND)
Detection technology: magnetic field
Noise filter and amplifier: Included
Operating temperature: -40°C to 150°C
Compatibility: Arduino , Raspberry Pi, etc.
Dimensions mm: 37 x 18mm
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