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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% @ 5mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：3µs, 5µs
- Input Type：DC
- Output Type：Transistor
- Voltage - Output (Max)：40V
- Current - Output / Channel：80mA
- 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-SMD, Gull Wing
- Supplier Device Package：4-SOP
- Grade：-
- Qualification：-
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Overview
The PS2701-1-K-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 compact SOP-4 package. The device provides high isolation voltage of 3750 Vrms, ensuring reliable signal transmission across isolated circuits. Key electrical parameters include a collector-emitter breakdown voltage of 40 V, a maximum forward current of 50 mA, and a typical rise time of 3 μs. The component supports surface mount technology for automated assembly processes.
Feature Summary
- High isolation voltage capability of 3750 Vrms for robust circuit protection
- Compact SOP-4 surface mount package design for space-constrained applications
- Integrated GaAs LED and NPN phototransistor for efficient optical coupling
Applications
- Industrial control systems requiring signal isolation
- Measurement equipment needing high-voltage barrier protection
- Power supply feedback loops for safety compliance
Procurement Notes
Verify the specific suffix K-A against official Renesas documentation to confirm pinout and packaging variations. Confirm end-of-life status as some PS2701 variants are marked NRND. Ensure compatibility with existing PCB footprints before procurement. Check for RoHS compliance details in the latest datasheet revision. Validate supplier authenticity through authorized channels.
Selection Notes
Select this component when a 40 V collector-emitter voltage rating is sufficient for the application. Consider the 3 μs rise time for medium-speed switching requirements. Evaluate the SOP-4 footprint constraints against available board space. Compare current transfer ratio specifications if precise gain control is necessary. Verify thermal dissipation capabilities within the operating temperature range.
Part Context
The PS2701 series belongs to Renesas' high-isolation photocoupler family designed for general-purpose isolation tasks. This model specifically utilizes a standard SOP-4 outline, distinguishing it from wider or lead-frame variants. The series emphasizes reliability in noisy industrial environments through enhanced dielectric strength between input and output sections.
Replacement Considerations
Publicly confirmed substitute part numbers for PS2701-1-K-A are not available in the provided source material. Consult Renesas technical support for qualified alternatives. Cross-reference pinouts carefully when considering generic replacements.
