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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)：400% @ 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-V-A is a single-channel transistor output optocoupler manufactured by Renesas Electronics. It integrates a Gallium Arsenide (GaAs) infrared emitting diode and an NPN silicon phototransistor within a compact 4-pin SOP package. The device provides electrical isolation with a rated insulation voltage of 3750 Vrms. Key electrical parameters include a maximum collector-emitter voltage of 70 V, a maximum collector current of 50 mA, and a typical current transfer ratio of 100%. It operates with a forward current of 5 mA and features rise and fall times of 5 µs. The component supports a wide operating temperature range from -55°C to +110°C.
Feature Summary
- Optical isolation between input and output circuits using GaAs LED and NPN phototransistor technology
- High insulation voltage capability for safe signal transmission across potential differences
- Compact surface-mount SOP-4 package design suitable for space-constrained applications
Applications
- Industrial control systems requiring signal isolation
- Power supply feedback loops for voltage regulation
- Microcontroller interface circuits for noise immunity
Procurement Notes
Verify the specific suffix 'V' against official Renesas documentation to confirm tape-and-reel packaging specifications. Ensure the part number matches the exact datasheet revision required for your design. Cross-reference with authorized distributors to confirm current availability status, as supply conditions may vary. Confirm RoHS compliance details directly from the manufacturer's latest certification documents before procurement.
Selection Notes
Select this component when high isolation voltage and moderate speed are required in a small footprint. The 70 V collector-emitter rating suits low-voltage logic interfacing. Verify that the 5 µs switching speed meets the application timing requirements. Ensure the SOP-4 package fits the PCB layout constraints. Compare CTR specifications if precise gain matching is necessary for the circuit design.
Part Context
This part belongs to the PS2761B series of single-channel optocouplers. It shares the same core functional architecture as other variants in the family, differing primarily in packaging or reel configuration indicated by the suffix. The series is designed for general-purpose isolation tasks where reliability and compact size are prioritized over high-speed data transmission capabilities.
Replacement Considerations
Direct substitutes include PS2761B-1-F3-L-A and PS2761B-1Y-F3-A. Verify pinout compatibility and electrical parameter equivalence before substitution. Ensure the replacement part meets the same insulation voltage and thermal operating range requirements.
