MB105/4C Optocoupler IC Dip 6 Pin

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MB105/4C Optocoupler IC Dip 6 Pin The MB105/4C is a 6-pin DIP optocoupler (optically coupled isolator) designed for electrical isolation between input and output circuits. It consists of an infrared emitter diode (IRED) on the input side and a planar NPN silicon phototransistor on the output side. This variant (/4C) features a collector-emitter breakdown voltage of 70V and belongs to current transfer ratio (CTR) group C, offering a CTR range of 100% to 200%. Features Infrared LED input coupled with NPN silicon phototransistor output for reliable optical isolation. High peak insulation voltage of 5.3kV RMS (50-60Hz sine wave) for robust electrical separation. Collector-emitter voltage rating of 70V, suitable for medium-voltage applications. Current transfer ratio (CTR) group C: 100% to 200% at IF = 10mA, VCE = 5V. Includes base connection on the phototransistor for enhanced control and flexibility. Wide operating temperature range from -55°C to +85°C. Specifications Parameter Min. Max. Unit Conditions Input Circuit (at -55 to 85 °C) Forward Current 60 mA Peak Forward Current 3 A tP ≤ 1 µs, 2 min Pause Repetitive Peak Forward Current 120 mA Reverse Voltage 6 V Output Circuit (at -55 to 85 °C) Collector-Emitter Voltage (UCEM) – MB 105/4, MB 105/6 70 V Collector-Emitter Voltage (UCEM) – MB 105/5 35 V Emitter-Base Voltage (UEBO) 6 V Power Dissipation (Transistor) 150 mW At ϑa ≤ 25 °C Coupler Peak Insulation Voltage (UIORM) 5.3 kV f = 50 to 60 Hz Operating Temperature (ϑa) -55 85 °C Storage Temperature (ϑstg) -55 125 °C Characteristic Values (at ϑa = 25 °C) Forward Voltage (UF) 1.65 V IF = 60 mA Reverse Current (IR) 10 µA UR = 6 V Collector-Emitter Dark Current (ICEO) – MB 105/4, MB 105/6 50 nA UCE = 10 V, IF = 0 Collector-Emitter Dark Current (ICEO) – MB 105/5 10 µA UCE = 35 V, IF = 0 Insulation Resistance (RIO) 100 GΩ UIO = 0.5 kV Switching Times Delay Time (td) 5 µs Rise Time (tr) 10 µs Storage Time (ts) 1.5 (4.0 for E, F) µs Fall Time (tf) 10 µs Applications Power supply regulators Digital logic inputs/outputs Microprocessor system interfaces Medical and measurement equipment Telecommunication systems DataSheet mb105 mb105 en-US