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Product Detailed Parameters
- Description：OPTOISO 3.75KV 1CH TRANS 4-SOP
- Series：NEPOC
- Mfr：CEL
- Package：Tube
- 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)：10µs, 10µs
- Input Type：DC
- Output Type：Transistor
- Voltage - Output (Max)：120V
- Current - Output / Channel：30mA
- 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
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Overview
The PS2703-1-L-A is an optically coupled isolator from the NEPOC series manufactured by CEL. It integrates a Gallium Arsenide (GaAs) light-emitting diode with an NPN silicon phototransistor within a single package. The device provides high isolation voltage and supports an output voltage of up to 120V with an output current of 30mA per channel. It features a current transfer ratio ranging from 50% to 400% at a forward current of 5mA. The component operates within a temperature range of -55°C to 100°C, with a maximum forward voltage of 1.4V.
Feature Summary
- Optical isolation between input and output circuits using GaAs LED and NPN phototransistor
- High collector-to-emitter voltage capability for robust signal transmission
- Wide operating temperature range suitable for demanding environments
Applications
- High-performance DC-DC converter noise isolation
- Industrial control system signal coupling
- Consumer electronics circuit isolation
Procurement Notes
Verify the specific suffix 'L-A' against official datasheets to confirm pinout and packaging details. Confirm availability status as distribution channels may list discontinued items. Ensure the source document explicitly identifies the manufacturer as CEL or NEC for this part number. Cross-reference electrical parameters with the latest official documentation before procurement.
Selection Notes
Select this component when high isolation voltage and reliable optical coupling are required in compact SMD packages. Consider the current transfer ratio and operating temperature range for compatibility with the target circuit design. Verify that the 30mA output current meets the load requirements. Check for direct substitutes if supply chain constraints exist.
Part Context
The PS2703-1-L-A belongs to the NEPOC series of optocouplers produced by CEL. This series is designed for applications requiring high isolation performance in small form factors. The component shares architectural similarities with other models in the PS2703 family, differing primarily in packaging and specific electrical characteristics defined by the suffix.
Replacement Considerations
Direct substitute options include the PS2703-1-F3-L-A, though availability should be verified. Other compatible models within the PS2703 series may serve as alternatives depending on specific pinout and parameter requirements.
