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Product Detailed Parameters
- Description：OPTOISOLATOR 5KV 1CH TRANS 4-SMD
- Series：NEPOC
- Mfr：CEL
- Package：Tape & Reel (TR)
- Number of Channels：1
- Voltage - Isolation：5000Vrms
- Current Transfer Ratio (Min)：200% @ 5mA
- Current Transfer Ratio (Max)：400% @ 5mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：3µs, 5µs
- Input Type：DC
- Output Type：Transistor
- Voltage - Output (Max)：80V
- Current - Output / Channel：50mA
- Voltage - Forward (Vf) (Typ)：1.17V
- Current - DC Forward (If) (Max)：80 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 PS2561L-1-E3-L-A is a single-channel transistor output optocoupler manufactured by CEL. It integrates a GaAs infrared emitting diode and an NPN silicon phototransistor within a surface-mount plastic package. The device provides high isolation voltage of 5000Vrms between input and output circuits. Key electrical parameters include a minimum current transfer ratio of 200% at 5mA forward current, a collector-emitter breakdown voltage of 80V, and a maximum operating temperature of 100°C. The component is lead-free and RoHS compliant.
Feature Summary
- High isolation voltage capability for safe signal transmission across potential barriers
- Surface mount construction with wide lead bending for automated assembly compatibility
- Lead-free composition adhering to environmental compliance standards
Applications
- Industrial control systems requiring galvanic isolation
- Signal transmission in measurement equipment
- Power supply feedback loops
Procurement Notes
Verify the specific suffix 'L-A' against the manufacturer's official documentation to confirm pinout and tape/reel specifications. Ensure the source document explicitly identifies the manufacturer as CEL or California Eastern Laboratories. Confirm that the part status is active if required for new designs, as some variants in this series may be obsolete.
Selection Notes
Select this component when a surface-mount transistor output optocoupler with high CTR is required. The 5000Vrms isolation rating suits applications demanding robust safety separation. Verify that the 80V collector-emitter voltage meets the load requirements. Check thermal limits against the intended operating environment.
Part Context
This part belongs to the PS2561L-1 series of NEPOC family optocouplers. It is functionally similar to Renesas PS2561AL2-1 variants but sourced from CEL. The L2 designation typically indicates a wide lead bending type for surface mounting. Datasheets from multiple distributors confirm the 5000Vrms isolation and transistor output configuration.
Replacement Considerations
The PS2561AL2-1-E3-A is a direct functional equivalent from NEC/Renesas with identical pinout and electrical characteristics. Verify package dimensions match the PCB footprint before substitution.
