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ISD74SM is listed in the Transistor, Photovoltaic Output Optoisolators range at ChipApex. The manufacturer field lists Isocom Components 2004 LTD. Its product description is OPTOISO 5.3KV 1CH TRANS W/BASE. Review the specifications below when checking this part for your BOM.
The ISD74SM is a dual-channel optocoupler from the ISD series, manufactured by Isocom Components. It features a DC input and transistor output configuration housed in an 8-pin PDIP package. Key electrical parameters include a maximum forward voltage of 1.65V, a typical rise time of 2.6μs, and a typical fall time of 2.2μs. The device offers a high isolation voltage of 5.3kVrms and operates within a temperature range of -25°C to 100°C. Current transfer ratios range from a minimum of 12.5% to a maximum of 400%, with a maximum input current of 50mA.
Verify the specific suffix 'SM' against official Isocom documentation to confirm surface mount or tape-and-reel packaging variations. Ensure compliance requirements such as CECC 0080 and UL standards are explicitly met for the intended application environment. Cross-reference the manufacturer part number with authorized distributor databases to confirm availability and authenticity before procurement.
Select this component when dual-channel isolation is required within a standard DIP footprint. Consider the 5.3kVrms isolation rating for safety-critical applications. Evaluate the current transfer ratio specifications against load requirements. Verify that the operating temperature range meets environmental conditions. Confirm pinout compatibility with existing PCB layouts during the design phase.
The ISD74SM belongs to the ISD series of high-density phototransistor optically coupled isolators. This family utilizes infrared LEDs paired with NPN silicon phototransistors. The series is designed for space-efficient mounting in dual in-line plastic packages. These components provide reliable galvanic isolation for digital signal processing tasks.
The device supports an isolation voltage of 5.3kVrms.
No, the ISD74SM is specified for DC input applications.
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