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Product Detailed Parameters
- Description：OPTOISOLATOR 5KV 1CH TRANS 4-SMD
- Series：NEPOC
- Mfr：CEL
- Package：Tube
- Number of Channels：1
- Voltage - Isolation：5000Vrms
- Current Transfer Ratio (Min)：100% @ 1mA
- Current Transfer Ratio (Max)：400% @ 1mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：20µs, 30µs
- Input Type：DC
- Output Type：Transistor
- Voltage - Output (Max)：40V
- Current - Output / Channel：30mA
- Voltage - Forward (Vf) (Typ)：1.1V
- Current - DC Forward (If) (Max)：80 mA
- Vce Saturation (Max)：250mV
- 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 PS2503L-1 is a single-channel transistor output optocoupler manufactured by CEL. It integrates a Gallium Arsenide (GaAs) infrared emitting diode and an NPN silicon phototransistor within a DIP-4 or SMD package. The device provides high isolation voltage of 5000 Vrms, ensuring safe signal transmission between isolated circuits. Key electrical parameters include a collector-emitter saturation voltage of 250 mV, a forward current of 80 mA, and a typical current transfer ratio ranging from 100% to 400%. It operates within a temperature range of -55°C to +100°C.
Feature Summary
- Optical coupling via GaAs LED and NPN phototransistor for reliable signal isolation
- High insulation voltage capability of 5000 Vrms for safety compliance
- Low collector-emitter saturation voltage for efficient switching performance
Applications
- Industrial control systems requiring galvanic isolation
- Power supply feedback loops
- Signal transmission in noisy environments
Procurement Notes
Verify the specific suffix (e.g., -A, -M-A) as it denotes package type and RoHS status. Confirm availability status, as some variants may be discontinued or have limited stock. Ensure the selected part matches the required lead time and packaging format for your assembly process.
Selection Notes
Select this component when high isolation voltage and moderate speed are required. Compare current transfer ratio requirements against load conditions. Verify thermal dissipation capabilities if operating near maximum temperature limits. Consider pin compatibility with existing PCB footprints.
Part Context
This part belongs to the PS2503L series of transistor output optocouplers. It is functionally similar to the PS2503-1 but may differ in packaging or regulatory compliance details. The series is designed for general-purpose isolation applications where cost-effectiveness and reliability are prioritized.
Replacement Considerations
Direct substitutes may include PS2503L-1-A or PS2503L-1-M-A depending on package preference. Cross-reference with PS2503-1 for functional equivalence, noting potential differences in insulation voltage ratings or package dimensions.
