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Shenzhen Sunyuan Technology Co., Ltd.

4-20ma, 4-20ma Isolator, 4-20ma Current Loop manufacturer / supplier in China, offering 4-20mA Current Loop Isolator, 1W High Power Density, Regulated Dual Output DC/DC Converter Wre1209s-1W, Current to Frequency Converter DIN1X1 ISO A4-P2-F6 and so on.

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4-20mA Current Loop Isolator

FOB Price: Get Latest Price
Min. Order: 1 Piece
Production Capacity: 5000PCS/Month
Transport Package: SIP 12 Pin
Payment Terms: T/T, Paypal, Western Union

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Basic Info
  • Model NO.: ISO 4-20mA
  • Output: 4-20mA
  • Isolation Voltage: 3000V
  • Industrial Temperature: -45~+85 Centigrade
  • Small Signal Bandwidth: 50Hz
  • Export Market: Global
  • Specification: CE, RoHS, ISO9001-2008
  • Input: 4-20mA
  • Isolation Method: Electromagnetic Isolation
  • Package: SIP 12pin
  • Nonlinearity: <0.2%
  • Certificates: CE RoHS ISO9001:2000/2008
  • Trademark: Sunyuan
  • Origin: China
Product Description
4-20mA Current Loop Isolator
Two-wires 4-20mA Passive Current Loop Isolator

· Low cost, small size, standard SIP12 package
· Electromagnetic Isolation
· Signal input/output, 3000VDC isolated voltage
· No external instrument needed for power supply
· 4-20mA high accuracy of current input/output(distortion<0.2%)
· Industrial temperature(-45~+85 º C)
· High linearity(Nonlinearity<0.2%)
· Small signal bandwidth: 50HZ
· Weld to PCB directly


· Analog signal data acquisition and isolation
· Isolated 4-20mA signal transmission
· Industrial process signal isolation
· Ground-loop elimination
· No distortion in long distance signal transmission
· Instrument signal acquisition
· Electric supervision and medical application
· Isolated safe bar
· Biomedical measurements


ISO 4-20mA Loop Powered Isolator IC recieves 4-20mA/0-20mA signals and transmit them through a single chip. The ceramic hermetic hybrid package contains an electromagnetic coupled converter and current module. The very low input equivalent impendence allows an ultra-wide voltage input range, so that it is able to meet the requirements that no distortion in long-distance signal transmission under the circumstance without any external power. The internal ceramic PCB, resistance and new isolation technique allow the IC to withstand the 3KVDC insulated voltage and meets the industrial requirements like the extremely poor temperature, humidity and shaking conditions. These specifications make the ISO 4-20mA Current Loop Isolation Interface IC very easy to install in PCB.
Parameter Conditions Min. Typical Value Max. Unit
Isolation Volt.  AC, 60Hz
Insulation Impedance
Leak current
1000 2500
6000 Vrms
Temp. Drift
In range of full span
Input Signal Volt. Range   7.5 12 32 V
Output Linearity Range
Output Current  Io
Output Voltage Drop  Voh
Output Signal Ripple     5   mV
Frequency Response
(small signal bandwidth)
Io=20mA   2   KHz
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Mr. Xia
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