VISHAY SFH690BT 1-Channel Phototransistor Optocoupler SOP 4-Pin 3.75kV

The VISHAY SFH690BT is a high-performance, 1-channel phototransistor output optocoupler. This 4-pin component utilises a gallium arsenide (GaAs) infrared emitting diode, optically coupled to a silicon planar phototransistor detector. It is engineered for reliable signal transmission between two electrically isolated circuits, making it a fundamental component for ensuring safety and signal integrity in a wide range of electronic systems.

A key benefit of this optocoupler is its high current transfer ratio (CTR) of 100% minimum, ensuring efficient signal transmission. It features a very low coupling capacitance and an impressive high isolation voltage of 3.75 kilovolts (kV), providing excellent electrical noise immunity and protecting sensitive circuitry. The device is designed in a compact SOP (Small Outline Package) case style, making it ideal for high-density mounting on space-sensitive printed circuit boards (PCBs) and within programmable logic controllers (PLCs).

The SFH690BT offers excellent electrical characteristics including a low saturation voltage for efficient operation and a fast switching time for responsive performance in dynamic applications. Its design is temperature stable, ensuring consistent operation across varying environmental conditions. The package is end-stackable with a standard 0.100” (2.54mm) pin spacing, simplifying board layout and assembly.

With a high collector-emitter breakdown voltage of 70V and a reverse voltage rating of 6V, this optocoupler provides robust protection and reliable performance in demanding circuits. It is supplied as a single unit, ready for integration into your designs where galvanic isolation is required.

Specifications

• Type: Phototransistor Output Optocoupler
• Channels: 1 Channel
• Package: SOP (Small Outline Package)
• Pin Count: 4 Pins
• Maximum Forward Current (If): 50mA
• **IsolationVol