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Product Detailed Parameters
- Description：OPTOISO 3.75KV 1CH TRANS 4-SOP
- Series：NEPOC
- Mfr：Renesas Electronics Corporation
- Package：Tube
- Number of Channels：1
- Voltage - Isolation：3750Vrms
- Current Transfer Ratio (Min)：50% @ 5mA
- Current Transfer Ratio (Max)：300% @ 1mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：4µs, 5µs
- Input Type：DC
- Output Type：Transistor
- Voltage - Output (Max)：70V
- Current - Output / Channel：50mA
- Voltage - Forward (Vf) (Typ)：1.1V
- Current - DC Forward (If) (Max)：50 mA
- Vce Saturation (Max)：300mV
- Operating Temperature：-55°C ~ 100°C
- Mounting Type：Surface Mount
- Package / Case：4-SOIC (0.173", 4.40mm Width)
- Supplier Device Package：4-SOP
- Grade：-
- Qualification：-
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Overview
The PS2861B-1Y-V-A is a single-channel transistor output optocoupler manufactured by Renesas Electronics. It integrates a GaAs infrared emitting diode and an NPN silicon phototransistor within a four-pin SSOP package. The device provides high isolation voltage of 3750 Vrms between input and output circuits. Key electrical parameters include a maximum collector-emitter voltage of 70 V, a forward current of 5 mA, and a typical current transfer ratio of 150%. Switching characteristics feature a rise time of 4 μs and a fall time of 5 μs. It operates within an ambient temperature range of -55°C to +110°C.
Feature Summary
- High isolation voltage capability for safe signal transfer
- Shrink Small Outline Package (SSOP) design for high-density mounting
- Ambient light shielding effect integrated into the package structure
Applications
- Interface circuits requiring surface or high-density mounting
- Signal transfer circuits demanding high isolation
- Industrial control systems with strict space constraints
Procurement Notes
Verify the specific suffix against official datasheets to confirm insulation distance and safety certification status. Confirm availability as the component may be designated as Not Recommended for New Designs. Ensure the selected variant matches the required isolation voltage and operating temperature specifications for the target application environment.
Selection Notes
Select this component when high isolation voltage is required in a compact footprint. The SSOP package suits applications with limited board space. Verify that the switching speed meets the system requirements, as the device is optimized for general-purpose isolation rather than high-speed data transmission. Check for compliance with relevant safety standards if used in certified equipment.
Part Context
This part belongs to the PS2861B-1 series of optically coupled isolators from Renesas Electronics. The series is designed for applications requiring reliable signal isolation in a small form factor. The device utilizes standard semiconductor manufacturing processes to ensure consistent performance across production batches.
Replacement Considerations
Consult official substitution lists for verified equivalents. Generic replacements must match the 3750 Vrms isolation rating and SSOP-4 package dimensions. Verify pinout compatibility and thermal characteristics before implementation.
