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The TLP181(GR,T) is a mini flat coupler manufactured by Toshiba Semiconductor and Storage, designed for surface mount assembly. It integrates a gallium arsenide infrared emitting diode optically coupled to a photo transistor within a compact outline package smaller than standard DIP formats. Key electrical specifications include a minimum collector-emitter voltage of 80V and a minimum current transfer ratio of 50%. The device offers a minimum isolation voltage of 3750Vrms and supports a maximum operating isolation voltage of 565Vpk with a withstand voltage of 6000Vpk. It holds UL 1577 certification (file no. E67349) and VDE certification compliant with EN 60747-5-2.
Verify component status as the TLP181 series is documented as obsolete in available records. Confirm availability of replacement parts such as the TLP185. Ensure ordering suffixes match specific packaging or certification requirements. Validate RoHS compliance status against current manufacturing data sheets before procurement planning.
Select this component for applications requiring small outline packages where space constraints prevent the use of larger DIP packages. Consider the 80V collector-emitter voltage rating for low-voltage switching tasks. Verify that the 50% minimum current transfer ratio meets the input drive requirements of the target circuit design.
This part belongs to the Toshiba TLP181 series of mini flat couplers. The series is characterized by its reduced footprint compared to traditional dual in-line packages, facilitating automated surface mount technology processes. The specific model variant denotes the internal configuration and packaging type within this product line.
Public documentation indicates the TLP185 as a confirmed substitute part number for the discontinued TLP181 series.