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LDA100 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 6DIP. Review the specifications below when checking this part for your BOM.
The LDA100 is a bidirectional-input optocoupler featuring a single-transistor output. It utilizes optically coupled technology to establish a robust isolation barrier rated at 3750V rms between the input and output circuits. The device is housed in a 6-DIP package and is classified under transistor photovoltaic output optoisolators. This component provides electrical isolation for signal transmission while maintaining high voltage withstand capabilities.
Verify the manufacturer designation, as some sources list IXYS Integrated Circuits while others cite Littelfuse Inc., indicating potential corporate acquisition history. Confirm the specific package type is 6-DIP and check for any ordering suffixes that may denote tape-and-reel versus tube packaging. Ensure the datasheet matches the required isolation voltage rating of 3750V rms before finalizing procurement.
Select this component when bidirectional input functionality is required within a single-transistor output configuration. The 3750V rms isolation rating makes it suitable for applications demanding significant voltage separation. Consider the 6-DIP package form factor for through-hole mounting requirements. Verify compatibility with the control circuit's current transfer ratio specifications against official Littelfuse documentation.
The LDA100 belongs to the Single Optocouplers series from Littelfuse. It is part of a family providing optically isolated means of switching control circuits. The device integrates phototransistor technology to facilitate reliable signal transfer while preventing electrical noise or high voltages from crossing the isolation boundary.
Publicly confirmed substitute part numbers are not available in the provided source material. Cross-reference with other single-transistor output optocouplers offering similar 3750V rms isolation and bidirectional input features if direct substitution is necessary.
Explore related parts through Optocouplers, Optoisolators, Isolators, all product categories, ChipApex homepage.

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