(China (Mainland))
Product Summary
The SFH6943-4 is a four channel mini-optocoupler suitable for high density packaged PCB application. It has a minimum of 1768 VRMS isolation from input to output. The device consists of four phototransistors as detectors. Each channel is individually controlled. The optocoupler is housed in a SOT223/10 package. All the cathodes of the input LEDs and all the collectors of the output transistors are common enabling a pin count reduction from 16 pins to 10 pins-a significant space savings as compared to four channels that are electrically isolated individually.
Parametrics
SFH6943-4 absolute maximum ratings: (1)Reverse voltage: 3V; (2)DC forward current: 5mA; (3)Surge forward current: 100 mA; (4)Total power dissipation: 10 mW; (5)Collector-emitter voltage: 70 V; (6)Emitter-collector voltage: 7 V; (7)Collector current: 10 mA; (8)Surge collector current: 20 mA; (9)Total power dissipation: 20 mW; (10)Storage temperature range: - 55 to + 150°C; (11)Ambient temperature range: - 55 to + 100 °C; (12)Junction temperature: 100°C.
Features
SFH6943-4 features: (1)Transistor Optocoupler in SOT223/10 Package; (2)End Stackable, 1.27 mm Spacing; (3)Low Current Input; (4)Very High CTR, 150 % Typical at IF= 1 mA, VCE = 5 V; (5)Good CTR Linearity Versus Forward Current; (6)Minor CTR Degradation; (7)High Collector-Emitter Voltage, VCEO=70 V; (8)Low Coupling Capacitance; (9)High Common Mode Transient Immunity; (10)Isolation Test Voltage: 1768 VRMS.
Diagrams
