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Product Detailed Parameters
- Description：OPTOISO 3.75KV 1CH TRANS 4-SMD
- Series：NEPOC
- Mfr：Renesas Electronics Corporation
- Package：Tape & Reel (TR)
- Number of Channels：1
- Voltage - Isolation：3750Vrms
- Current Transfer Ratio (Min)：100% @ 5mA
- Current Transfer Ratio (Max)：300% @ 5mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：5µs, 7µs
- Input Type：AC, DC
- Output Type：Transistor
- Voltage - Output (Max)：70V
- Current - Output / Channel：30mA
- Voltage - Forward (Vf) (Typ)：1.2V
- Current - DC Forward (If) (Max)：30 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-SMD
- Grade：-
- Qualification：-
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Overview
The PS2705A-1-F3-L-A is a single-channel transistor output optocoupler manufactured by Renesas Electronics. It integrates an AlGaAs light-emitting diode and an NPN silicon phototransistor within a shielded SOP-4 package to block ambient light. The device supports AC and DC input signals with a high isolation voltage of 3750 Vrms. Key electrical parameters include a maximum collector-emitter voltage of 70 V, a peak forward current of 50 mA, and a typical current transfer ratio of 100%. Operating temperatures range from -55°C to +100°C.
Feature Summary
- AC input response capability for direct connection to AC power lines
- High isolation voltage rating of 3750 Vrms for safety-critical applications
- SOP package design with internal shielding to prevent ambient light interference
Applications
- Solid-state relay driver circuits
- Microcontroller interface isolation
- Industrial control system signal transmission
Procurement Notes
Verify the specific suffix F3-L-A against official Renesas documentation to confirm lead-free status and packaging details. Confirm availability as this variant may be subject to limited supply or end-of-life restrictions. Ensure compliance with RoHS3 requirements before integration into final assemblies.
Selection Notes
Select this component when AC input detection is required alongside high-voltage isolation. The 70V collector-emitter voltage provides headroom for inductive loads. Verify that the 80mA output current capacity meets the load requirements. Consider thermal dissipation limits within the SOP-4 package during continuous operation.
Part Context
This part belongs to the PS2705 series of high-isolation voltage photocouplers. It shares architectural similarities with the PS2705-1 but offers enhanced collector-emitter voltage ratings suitable for higher voltage switching applications. The series is designed for density mounting in compact electronic devices.
Replacement Considerations
PS2705A-1-F3-A is a documented alternative within the same family. Verify pinout compatibility and ensure the replacement matches the 70V collector-emitter voltage specification. Check if the substitute maintains the required AC input response characteristics.
