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LTV-817S-TA is listed in the Transistor, Photovoltaic Output Optoisolators range at ChipApex. The manufacturer field lists Lite-On Inc.. Its product description is OPTOISOLATOR 5KV 1CH TRANS 4-SMD. Review the specifications below when checking this part for your BOM.
The LTV-817S-TA is a surface-mount transistor output optocoupler from Lite-On Inc. It features a single channel with a 4-SMD (gull-wing) package. The device provides high isolation voltage of 5000Vrms and supports DC input. Key electrical parameters include a maximum forward current of 50mA, typical forward voltage of 1.2V, and collector-emitter saturation voltage of 200mV. The current transfer ratio ranges from 50% to 600% at IF=5mA. Response times are typically 4μs rise and 3μs fall. Operating temperature spans -55°C to 110°C.
Verify the specific suffix 'TA' corresponds to the tape and reel packaging format required for your SMT line. Confirm that the 4-SMD gull-wing footprint matches your PCB design. Ensure RoHS3 compliance meets your regional regulatory standards. Cross-reference the manufacturer part number with distributor codes to avoid ordering errors due to similar family members.
Select this component when a surface-mount solution is required for signal isolation in compact designs. It serves as a direct replacement for through-hole variants like the LTV-817D where board space is limited. Consider the 5000Vrms isolation rating for primary-side sensing applications. Verify that the 50mA output current capability meets the load requirements of the receiving circuitry.
This part belongs to the LTV-8x7 series of photocouplers, which are widely used for general-purpose isolation. The 'S' designation indicates the surface-mount package variant, distinguishing it from the PDIP versions. The LTV-817 family is a standard industry reference for transistor output optocouplers, offering a balance of performance and cost-effectiveness for digital signal transmission.
HCPL-817-300E by Broadcom Limited is listed as a similar substitute.
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