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LDA100S is listed in the Transistor, Photovoltaic Output Optoisolators range at ChipApex. The manufacturer field lists Littelfuse Inc.. Its product description is OPTOISO 3.75KV TRANS W/BASE 6SMD. Review the specifications below when checking this part for your BOM.
The LDA100S is a single-channel OptoMOS relay from Littelfuse, featuring a unidirectional input and a single phototransistor output. Key electrical parameters include a minimum breakdown voltage (BVCEO) of 30V at IC=10µA, a typical current transfer ratio of 300%, and a maximum saturation voltage of 0.5V. The device requires an input control current of 1mA for operation. It is housed in a compact 6-SMD Gull Wing package, providing optical isolation for switching control circuits.
Verify the specific suffix 'S' against the manufacturer's official datasheet to confirm package type and pinout compatibility. Ensure the unidirectional input configuration matches the system design requirements. Cross-reference the 6-SMD Gull Wing footprint with PCB layout specifications before finalizing procurement orders.
Select this component when a single-channel, unidirectional optically isolated switch is required. The 30V breakdown voltage and 0.5V saturation voltage define its operational limits. Consider the 1mA input current requirement for driver circuit design. Verify that the SMD package aligns with assembly capabilities.
The LDA100S belongs to the Single Optocouplers Series by Littelfuse. This series utilizes OptoMOS technology to provide reliable switching solutions. The part integrates a phototransistor within a sealed package to ensure signal integrity through optical coupling.
Consult Littelfuse documentation for direct substitutes. Verify pinout and electrical characteristics match exactly before substitution.
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