Optocoupler 521 Series

optocoupler
optocoupler
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Description

521 Series Optocouplers for the galvanic separation of intrinsic safety circuits, Isolation voltage min. 6 kVDC, CTR min. 0.5, cutoff 50 kHZ. Insulation resistance input /output up to 10^13 Ω. Distance between input and output for highest safety requirements up to 24.5mm. Galvanic separation and minor coupling capacitance between input and output circuit. Analog & digital signal transfer is possible. Minor output delay times compared to relays. Long life due to non mechanical wear. Magnetic fields do not impact operation. A photo-diode makes for very short cycle times. Able to invert the output signal during transfer. Specifications Isoltion Voltage Input/Output Min. (V DC) 6000 Current Transfer Ratio lc/lf (lf = 10mA) Min. 0.5 Turn On/Off Time(µsec) 5.5/4.2 Collector-Emitter Voltage (V DC) Max. 70 Creeping Distance, Air Path I/O Min. (mm) 24.5 Ambient Temperature °C -40 to 85 Applications Any factory that requires high isolation and non-arcing environments, flammable gas processing plants, medical processing plants where ESD could be a real problem, mining operations

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