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HCPL3700SV is listed in the Transistor, Photovoltaic Output Optoisolators range at ChipApex. The manufacturer field lists Fairchild Semiconductor. Its product description is OPTOISOLTR 2.5KV 1CH DARL 8-SMD. Review the specifications below when checking this part for your BOM.
The HCPL3700SV is a logic output optocoupler manufactured by Fairchild Semiconductor, designed for AC/DC to logic interface applications. It features a Darlington output configuration with one channel and an SMD-8 surface mount package. Key electrical parameters include a maximum propagation delay of 40 us, a rise time of 45 us, and a fall time of 500 ns. The device supports a maximum continuous output current of 30 mA and operates within a temperature range of -40 C to +85 C. It provides 2500 Vrms insulation voltage and has a power dissipation rating of 305 mW.
Verify the specific manufacturer source, as production rights have transitioned from Fairchild Semiconductor to onsemi. Confirm RoHS compliance status through official documentation. Check for end-of-life notices regarding availability and obsolescence schedules. Ensure the SMD-8 package variant matches the required PCB layout specifications before procurement.
Select this component when precise threshold detection is required for AC or DC signals. The Darlington output provides high gain suitable for driving logic inputs directly. Consider the 2500 Vrms isolation rating for safety-critical applications. Verify that the 45 us rise time meets the system's timing requirements compared to faster optocouplers.
This part belongs to the HCPL3700 series of AC/DC to Logic Interface Optocouplers. Originally produced by Fairchild Semiconductor, the product line is now managed by onsemi. The series is characterized by its ability to detect voltage thresholds with programmable sensitivity, making it distinct from standard digital isolators.
Public confirmed substitute part numbers are not available in the provided data.
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