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Product Detailed Parameters
- Description：OPTOISO 3.75KV 1CH TRANS 4-SOP
- Series：NEPOC
- Mfr：Renesas Electronics Corporation
- Package：Tape & Reel (TR)
- 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-F3-A is a single-channel transistor output optocoupler manufactured by Renesas Electronics. It features an NPN phototransistor output housed in a 4-pin SOP package. Key electrical parameters include a maximum collector-emitter voltage of 70 V, a maximum collector current of 50 mA, and an isolation voltage of 3750 Vrms. The device operates with a forward current of 5 mA and has a typical current transfer ratio of 100%. Switching characteristics include rise and fall times of 5 µs each. It supports a power dissipation of 230 mW and functions within a temperature range of -55°C to +110°C.
Feature Summary
- Provides high-voltage isolation between input and output circuits for signal transmission.
- Features a compact surface-mount SOP-4 package suitable for automated assembly.
- Utilizes an NPN phototransistor output for reliable switching performance.
Applications
- Industrial control systems requiring galvanic isolation.
- Signal transmission across isolated boundaries in measurement equipment.
- Interface circuits connecting microcontrollers to high-voltage loads.
Procurement Notes
Verify the specific suffix against official Renesas documentation to confirm pinout and packaging details. Confirm availability status as distribution channels may list limited stock or end-of-life statuses. Ensure the component meets required insulation and safety certifications for the target application environment before finalizing procurement.
Selection Notes
Select this component when a single-channel isolation solution with moderate speed and high voltage tolerance is required. Compare the 70 V collector-emitter rating against load requirements. Consider the 5 µs switching speed relative to signal frequency needs. Verify that the SOP-4 footprint matches the PCB design constraints.
Part Context
This part belongs to the PS2761B series of transistor output optocouplers from Renesas. The series is designed for general-purpose isolation applications. The specific model indicates a standard SOP-4 package configuration. It serves as a discrete isolation component within larger electronic assemblies.
Replacement Considerations
Consult official cross-reference lists for verified substitutes. Ensure replacement parts match the 70 V C-E voltage, 50 mA current rating, and SOP-4 package dimensions. Verify equivalent isolation voltage and switching speeds to maintain circuit integrity.
