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Product Detailed Parameters
- Description：OPTOISO 3.75KV 1CH TRANS 4-SOP
- Series：NEPOC
- Mfr：Renesas Electronics Corporation
- Package：Strip
- Number of Channels：1
- Voltage - Isolation：3750Vrms
- Current Transfer Ratio (Min)：50% @ 5mA
- Current Transfer Ratio (Max)：150% @ 5mA
- 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：40mA
- Voltage - Forward (Vf) (Typ)：1.1V
- Current - DC Forward (If) (Max)：25 mA
- Vce Saturation (Max)：300mV
- Operating Temperature：-55°C ~ 110°C
- Mounting Type：Surface Mount
- Package / Case：4-SMD, Gull Wing
- Supplier Device Package：4-SOP
- Grade：-
- Qualification：-
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Overview
The PS2761B-1-M-A is a single-channel transistor output optocoupler manufactured by Renesas Electronics. It integrates a GaAs infrared LED and an NPN silicon phototransistor within a compact SOP-4 surface-mount package. Key electrical specifications include a maximum collector-emitter voltage of 70 V, a maximum collector current of 50 mA, and a forward voltage of 1.1 V at 5 mA input. The device offers high isolation with a breakdown voltage of 3750 Vrms and operates across a wide temperature range from -55°C to +110°C.
Feature Summary
- High isolation voltage capability of 3750 Vrms for robust signal separation
- Wide operating ambient temperature range extending up to 110°C
- Compact four-pin SOP surface-mount packaging design
Applications
- AC servo motor control systems
- Industrial inverter boards
- General-purpose signal isolation circuits
Procurement Notes
Verify the specific suffix 'M' against official Renesas documentation to confirm tape-and-reel packaging configuration. Ensure compliance with RoHS standards as indicated in public datasheets. Confirm availability status through authorized distributors, as supply conditions may vary. Cross-reference pinout assignments with the official schematic to prevent installation errors during PCB assembly.
Selection Notes
Select this component when high isolation voltage and wide temperature operation are required in space-constrained designs. The NPN phototransistor output suits digital switching applications. Verify that the 50 mA collector current rating meets load requirements. Consider the SOP-4 footprint for automated placement compatibility. Ensure input current limits align with driving circuit capabilities.
Part Context
This part belongs to the PS2761B series of single-channel optocouplers. The series utilizes GaAs LEDs and silicon phototransistors for reliable optical coupling. Similar variants exist with different packaging or suffixes, such as PS2761B-1-F3-L-A. The family is designed for industrial and consumer electronics requiring galvanic isolation between low-voltage control logic and higher-voltage power stages.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source material. Consult official Renesas cross-reference guides for verified alternatives. Ensure any replacement matches the SOP-4 package, 70 V collector voltage, and 3750 Vrms isolation rating.
