ISOS 4-20mA Ultra-small Size Loop Powered 4-20mA Signal Isolators

ISOS 4-20mA Ultra-small Size Loop Powered 4-20mA Signal Isolators

Product Details:

  • Output 0-20mA, 4-20mA
  • Input 0-20mA, 4-20mA
  • Power Supply Loop Powered
12.00 - 49.60 USD ($)/Piece

ISOS 4-20mA Ultra-small Size Loop Powered 4-20mA Signal Isolators Price And Quantity

  • 1 Piece
  • 12.00 - 49.60 USD ($)/Piece

ISOS 4-20mA Ultra-small Size Loop Powered 4-20mA Signal Isolators Product Specifications

  • 0-20mA, 4-20mA
  • 0-20mA, 4-20mA
  • Loop Powered

ISOS 4-20mA Ultra-small Size Loop Powered 4-20mA Signal Isolators Trade Information

  • Shenzhen
  • 50000 Piece Per Month
  • 3 Days
  • Yes
  • Sample costs shipping and taxes has to be paid by the buyer

Product Description

ISOS 4-20mA Ultra-small Size Loop Powered 4-20mA Signal Isolators


  • Input: 0-20mA, 4-20mA
  • Output: 0-20mA, 4-20mA
  • Power supply: Loop powered
  • Isolation voltage: 3KVDC
  • Package type: PCB mounted, DIN rail mounted


  • Micro size 19.5X12.5X9.8mm, zero/span adjustment is not required.
  • Special high efficient signal loop power extraction technique, external power supply is not required
  • 2-wire 4-20mA signal input and output, 3000VDC isolation.
  • 4-20mA current loop signal isolated transmission, accuracy, linearization error grade:0.1, 0.2
  • High linearity, non-linearity error < 0.2%.
  • 4-20mA signal extra wide voltage range (8.5~32VDC) input.
  • Signal low consumption (voltage drop 3V, type @20mA).
  • Industrial operating temperature range: - 45 to + 85.
  • SIP7 Pin standard PCB installation, UL94V-0 flame-retardant package.


  • Industry site 4-20mA signal isolation and long-distance transmission.
  • PLC, DCS signal input channels isolation and anti-channeling.
  • Ground wire loop isolation and interference suppression.
  • Analog signal data acquisition, isolated transmission.
  • Steady signal transmitting and receiving between meters and sensors.
  • Power monitoring, medical equipment control and isolated safety barrier.
  • Rail-transit DC high voltage monitoring isolated safety barrier.
  • 1-input 1-output, 2-input 2-output, 3-input 3-output.


SunYuan ISOS 4-20mA is one of the smallest size (SIP 7Pin) low cost passive 2-wire 4-20mA loop powered signal isolator IC. ISOS 4-20mA is a kind of 4-20mA current signal input, 4-20mA output passive analog signal isolated integrated circuits. Inside the IC, there is current signal modulation and demodulation circuit, signal coupling isolated conversion circuit,etc. The unique magneto-electric isolation and efficient loop power extraction technique are adopted in solving the power supply requirements in 4-20mA (0-20mA) current signal isolation and transmission among sensors, meters, PLC, DCS. SIP 7pin, extra small size (19.5x12.5x9.8mm), the isolator can be easily installed in PCB, meters, sensors, PLC and other panels, it can largely reduce customers cost and simplify the design plan.

The low input equivalent resistance makes the IC module achieve wide range input voltage (8.5~28VDC) to realize the long-distance, non-distortion transmission of signals without external power supply. By adopting SMD technological structure and new isolation technology, the modules posses the features: 3KVDC isolation between signal input and output (total isolation type), and operates in normal in abominable industrial conditions like wide temperature, humidity and vibration.

Sunyuan ISOS 4-20mA has the following features: small size, easy to use, can be easily installed in the other devices, it can realize 4-20mA or 0-20mA current loop signal acquisition and isolated conversion with high accuracy without any external components. The signal isolator has two types of package, small size PCB-mounted package, 35mm DIN rail-mounted package. The 35mm DIN rail-mounted products can be 1-input 1-output, 2-input 2-output, 3-input 3-output and 16-channel isolation, etc.

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