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Product Detailed Parameters
- Description：OPTOISOLATOR 5KV 2CH TRANS 8-DIP
- Series：NEPOC
- Mfr：CEL
- Package：Tube
- Number of Channels：2
- Voltage - Isolation：5000Vrms
- Current Transfer Ratio (Min)：80% @ 5mA
- Current Transfer Ratio (Max)：600% @ 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：Through Hole
- Package / Case：8-DIP (0.300", 7.62mm)
- Supplier Device Package：8-DIP
- Grade：-
- Qualification：-
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Overview
The CEL PS2501-2-A is a dual-channel transistor output optocoupler featuring an infrared light-emitting diode and NPN silicon phototransistors. It provides electrical isolation with a rated voltage of 5000Vrms. Key electrical parameters include a current transfer ratio of 300%, a collector-emitter saturation voltage of 300mV, and a forward current rating of 50mA. The device supports a collector-emitter voltage of 80V and utilizes an 8-DIP through-hole package for mounting.
Feature Summary
- Dual-channel configuration integrating two independent optical isolation circuits within a single package
- High isolation voltage capability ensuring reliable signal transmission across electrically noisy environments
- Low collector-emitter saturation voltage design supporting efficient switching performance
Applications
- Industrial control systems requiring galvanic isolation between microcontrollers and power stages
- Signal transmission in measurement and testing equipment
- Power supply feedback loops for voltage regulation and protection
Procurement Notes
Verify the specific suffix 'A' against manufacturer documentation to confirm pinout and electrical tolerances. Confirm availability status as some listings indicate obsolete status; identify valid substitute part numbers if production has ceased. Ensure the 8-DIP package matches your PCB footprint requirements before ordering.
Selection Notes
Select this component when dual-channel isolation is required in a compact form factor. The NPN phototransistor output suits digital switching applications rather than linear analog transmission. Verify that the 50mA forward current limit meets your LED drive circuit capabilities and that the 80V collector-emitter voltage exceeds your load requirements.
Part Context
This component belongs to the PS2501 series of optically coupled isolators manufactured by CEL. The series typically includes variants such as PS2501-1 (single channel) and PS2501-4 (quad channel). These devices are designed for general-purpose isolation tasks using standard GaAs LED and silicon phototransistor technology housed in plastic DIP packages.
Replacement Considerations
Publicly confirmed substitutes include the CEL PS2501L-2. Verify compatibility regarding pinout and electrical specifications before replacing the obsolete PS2501-2-A.
