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SC4671

High Precision Current sensor with Common Mode Magnetic Field suppression Up to 3000V Isolation

400kHz bandwidth、0.27mΩ Primary Side Impedance

The SC4671 current sensor is a cost-effective isolated current sensing solution in the industrial and automotive applications. The device consists of a precise, low-offset, linear Hall sensor circuit with a copper conduction path located near the surface of the die. Applied current flowing through this copper conduction path generates a magnetic field which is sensed by the integrated Hall IC and converted into a proportional voltage. The current is sensed differentially in order to reject common-mode fields, improving accuracy in magnetically noisy environments. SOP8 is for 20A ~ 50A and size-limit applications.

data table SC4671 Datasheet

Characteristics and advantages

High bandwidth and fast response time:400kHz bandwidth with 1.2us response time

Digital Temperature Compensation (DTC)+High Precision Achieved via Offline Calibration

Two versions respectively support 3.3V & 5V applications

Fixed output with VREF

Supports bidirectional and unidirectional output mode

Supports proportional and fixed output modes

Primary internal resistance:SOW10 0.27m2;SOW160.85m2;SOP8 1.2mQ

High isolation level that meets UL standards

Wide body SOW10, SOW16 package

Ordering Information

Order Information Primary Current(A) Power Supply(V) Sensitivity (mV/A) Zero Current Output Voltage(V) Package Packing
SC4671DC-20B5F-TR ±20 5 100 2.5 SOP8 4000pcs/Reel
SC4671DC-30B5F-TR ±30 5 66.7 2.5 SOP8 4000pcs/Reel
SC4671DC-50B5F-TR ±50 5 40 2.5 SOP8 4000pcs/Reel
SC4671SW-50B5R-TR ±50 5 40 2.5 SOW16 1000pcs per Reel
SC4671SW-100B5R-TR ±100 5 20 2.5 SOW16 1000pcs per Reel
SC4671SV-100B5R-TR ±100 5 20 2.5 SOW16 1000pcs per Reel

Product Application

OBC

DCDC

Massage Chair

A/C Indoor/Outdoor Unit

Current Detection

Coffee Machine

Range Hood

Elevator Door Operator

Industrial Sewing Machine

Current Detection

Robotic Arm

AC-DC Power Supply

DC-DC Power Supply

Charging Gun Module

Energy Storage

PTC Heater

Documents and Resources

Semiment Product Selection Guide

Selection Guide English version
2025-10-22

SC4671 Datasheet

Datesheet English version
2025-10-24

Application Note for SC4671

Application Note

video

The SC4671 current sensor is a cost-effective isolated current sensing solution in the industrial and automotive applications. The device consists of a precise, low-offset, linear Hall sensor circuit with a copper conduction path located near the surface of the die. Applied current flowing through this copper conduction path generates a magnetic field which is sensed by the integrated Hall IC and converted into a proportional voltage. The current is sensed differentially in order to reject common-mode fields, improving accuracy in magnetically noisy environments. SOP8 is for 20A ~ 50A and size-limit applications.

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