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Product Detailed Parameters
- Description：OPTOISOLATOR 5KV 1CH TRANS 4-DIP
- Series：NEPOC
- Mfr：CEL
- Package：Tube
- Number of Channels：1
- Voltage - Isolation：5000Vrms
- Current Transfer Ratio (Min)：130% @ 5mA
- Current Transfer Ratio (Max)：260% @ 5mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：3µs, 5µs
- Input Type：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：Through Hole
- Package / Case：4-DIP (0.300", 7.62mm)
- Supplier Device Package：4-DIP
- Grade：-
- Qualification：-
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Overview
The CEL PS2501A-1-W-A is a transistor output optoisolator featuring a GaAs infrared LED coupled to an NPN silicon phototransistor. It provides electrical isolation with a rated insulation voltage of 5000 Vrms. The device operates in a standard 4-pin DIP package and supports DC input signals. Key electrical parameters include a maximum current transfer ratio of 400% at 5mA forward current, typical rise and fall times of 3µs and 5µs respectively, and a maximum output voltage rating of 70V.
Feature Summary
- Contains a GaAs light emitting diode and an NPN silicon phototransistor for optical coupling
- Provides high voltage isolation capability rated at 5000 Vrms
- Designed for low input current operation requiring only 5mA
- Utilizes a plastic DIP package for through-hole mounting
Applications
- General purpose signal isolation in industrial control systems
- Interface between microprocessors and power circuits
- Switching applications requiring galvanic isolation
Procurement Notes
Verify the specific suffix 'W' against official manufacturer documentation to confirm pin pitch or lead form variations. Confirm availability status as some distributors list this variant as discontinued. Ensure the ordering part number matches the exact isolation voltage and package type requirements for your design.
Selection Notes
Select this component when a single channel of transistor output isolation is required with a 5000 Vrms rating. Consider the 4-pin DIP footprint for PCB layout compatibility. Evaluate the 70V output voltage limit and 5mA input current requirement against the driving circuit capabilities and load conditions.
Part Context
This part belongs to the PS2501 family of optocouplers manufactured by CEL (California Eastern Laboratories). The family includes variants with different output types and pin configurations. The PS2501A-1 series specifically denotes a single-channel device with transistor output, widely used in legacy and modern isolation designs.
Replacement Considerations
Check for direct substitutes such as the NEC PS2501A-1 or equivalent parts from other manufacturers offering identical 4-pin DIP transistor output specifications and 5000 Vrms isolation ratings.
