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Product Detailed Parameters
- Description：OPTOISOLTR 2.5KV 1CH TRANS 4-SOP
- Series：NEPOC
- Mfr：CEL
- Package：Tube
- Number of Channels：1
- Voltage - Isolation：2500Vrms
- Current Transfer Ratio (Min)：100% @ 5mA
- Current Transfer Ratio (Max)：300% @ 5mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：4µs, 5µs
- Input Type：DC
- Output Type：Transistor
- Voltage - Output (Max)：40V
- Current - Output / Channel：40mA
- 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-SOIC (0.173", 4.40mm Width)
- Supplier Device Package：4-SOP
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Overview
The PS2861-1-L-A is a single-channel optoisolator manufactured by CEL. It integrates a Gallium Arsenide (GaAs) infrared emitting diode with an NPN silicon phototransistor in a compact 4-SOP surface-mount package. The device provides electrical isolation with a rated voltage of 2500 Vrms. Key electrical specifications include a maximum forward current of 50 mA, a forward voltage of 1.4 V, and a collector-emitter saturation voltage of 300 mV. The output transistor supports a maximum output voltage of 40 V.
Feature Summary
- Integrates a GaAs light emitting diode and an NPN silicon phototransistor for signal transmission
- Provides high-voltage electrical isolation between input and output circuits
- Designed for surface-mount assembly in a compact 4-SOP package
Applications
- Industrial control systems requiring circuit isolation
- Signal transmission across isolated boundaries
- Power supply feedback loops
Procurement Notes
Verify the specific suffix 'L-A' against official manufacturer documentation to confirm pinout compatibility and lead-free status. Ensure the procurement source provides valid traceability for this obsolete or legacy part number. Cross-reference the 4-SOP package dimensions with your PCB footprint requirements before ordering.
Selection Notes
Select this component when a single-channel isolation solution with a phototransistor output is required. Consider the 2500 Vrms isolation rating and the 50 mA forward current limit during design. Verify that the NPN output configuration meets the switching speed and load requirements of the target application compared to other output types.
Part Context
This component belongs to the PS2861 series of optically coupled isolators from CEL. The series typically features GaAs LEDs paired with silicon phototransistors. Variations within the series may differ by packaging style, such as SOP or SMD configurations, and specific electrical characteristics like current transfer ratio ranges.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided data. Consult manufacturer cross-reference guides for equivalent devices with matching isolation voltages and package types.
