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Product Detailed Parameters
- Description：OPTOISOLATOR 5KV 1CH TRANS 4-DIP
- Series：NEPOC
- Mfr：Renesas Electronics Corporation
- 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 (0.400", 10.16mm)
- Supplier Device Package：4-DIP
- Grade：-
- Qualification：-
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Overview
The PS2581AL1-W-A is a single-channel transistor output optocoupler manufactured by Renesas Electronics Corporation. It features an NPN phototransistor output and provides high isolation voltage of 5000 Vrms. The device operates within a temperature range of -55°C to +100°C and supports a maximum forward current of 30 mA with a collector-emitter breakdown voltage of 70 V. It utilizes a wide lead spacing design for enhanced creepage distance, packaged in a compact 4-SMD surface-mount configuration.
Feature Summary
- High isolation voltage capability of 5000 Vrms for robust circuit protection
- Wide lead spacing design ensures extended creepage distance for safety compliance
- NPN phototransistor output suitable for digital signal transmission
- Surface-mount package optimized for automated assembly processes
Applications
- Industrial control systems requiring galvanic isolation
- Power supply feedback loops for noise immunity
- Microcontroller interface circuits for signal level shifting
- Solid-state relay driver applications
Procurement Notes
Verify the specific suffix designation against official Renesas documentation to confirm pinout compatibility and packaging type. Ensure the procurement source provides valid traceability records. Confirm RoHS compliance status matches project requirements. Check for any recent product change notices regarding material composition or manufacturing site updates before finalizing orders.
Selection Notes
Select this component when surface-mount technology is required for high-isolation applications. The wide lead spacing addresses PCB layout constraints where standard packages may not meet safety clearance standards. Consider the 30 mA forward current limit when designing input drive circuits. Verify that the 70 V collector-emitter voltage rating exceeds the load voltage in the target application circuit.
Part Context
This part belongs to the PS2581 series of photocouplers from Renesas Electronics. The series is known for long creepage distances and high isolation voltages. The 'W' suffix typically denotes a wide-lead variant designed for improved safety margins in high-voltage environments compared to standard DIP packages.
Replacement Considerations
PS2581L1-A-N is listed as a parameter equivalent alternative. Verify pin compatibility and electrical specifications before substitution.
