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Product Detailed Parameters
- Description：OPTOISOLTR 5.3KV 1CH TRANS 4-SMD
- Series：ISP817
- Mfr：Isocom Components 2004 LTD
- Package：Tube
- Number of Channels：1
- Voltage - Isolation：5300Vrms
- Current Transfer Ratio (Min)：100% @ 5mA
- Current Transfer Ratio (Max)：600% @ 5mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：4µs, 3µs
- Input Type：DC
- Output Type：Transistor
- Voltage - Output (Max)：80V
- Current - Output / Channel：50mA
- Voltage - Forward (Vf) (Typ)：1.2V
- Current - DC Forward (If) (Max)：50 mA
- Vce Saturation (Max)：200mV
- Operating Temperature：-55°C ~ 110°C
- Mounting Type：Surface Mount
- Package / Case：4-SMD (0.300", 7.62mm)
- Supplier Device Package：4-SMD
- Grade：-
- Qualification：-
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Overview
The ISP817XGBSM is a single-channel phototransistor optocoupler from the ISP series, manufactured by Isocom Components. It features a surface-mount DIP-4 package and accepts AC input signals. Key electrical parameters include a maximum forward voltage of 1.4V, a typical rise time of 4μs, and a typical fall time of 3μs. The device provides high isolation with a rated voltage of 5.3kVrms and supports a maximum input current of 50mA. Operating temperatures range from -30°C to 100°C.
Feature Summary
- Provides galvanic isolation between input and output circuits using an infrared LED and NPN phototransistor pair.
- Designed for high-density mounting applications with a compact surface-mount form factor.
- Capable of handling AC input signals directly without additional rectification components.
Applications
- Industrial control systems requiring signal isolation
- Power supply protection circuits
- Smart metering and utility instrumentation
Procurement Notes
Verify the specific suffix 'GB' against official manufacturer documentation to confirm lead frame plating or RoHS compliance status. Ensure the selected package variant matches the required PCB footprint dimensions. Confirm that the AC input capability aligns with the target circuit design before procurement.
Selection Notes
Select this component when high isolation voltage is required in a small surface-mount package. The AC input feature simplifies designs for mains-connected devices. Verify that the CTR specifications meet the load requirements of the downstream switching circuit.
Part Context
This part belongs to the ISP series of high-density mounting phototransistor optically coupled isolators. Isocom Components specializes in these devices as alternatives to standard industry types, often offering specialized parameter selections for specific circuit requirements.
Replacement Considerations
Direct substitutes may include other single-channel phototransistor optocouplers with similar isolation ratings and pin configurations. Verify compatibility with existing PCB layouts and thermal management constraints when considering alternative manufacturers.
FAQ
Does the ISP817XGBSM support AC input?
Yes, the datasheet specifies that this component accepts AC input signals.
What is the isolation voltage rating?
The device offers an isolation voltage of 5.3kVrms.
