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Product Detailed Parameters
- Description：OPTOISO 2.5KV TRANS 4-MINI-FLAT
- Series：-
- Mfr：CEL
- Package：Bulk
- Number of Channels：1
- Voltage - Isolation：2500Vrms
- Current Transfer Ratio (Min)：200% @ 1mA
- Current Transfer Ratio (Max)：400% @ 1mA
- Turn On / Turn Off Time (Typ)：40µs, 120µs
- Rise / Fall Time (Typ)：5µs, 10µs
- Input Type：DC
- Output Type：Transistor
- Voltage - Output (Max)：40V
- Current - Output / Channel：40mA
- Voltage - Forward (Vf) (Typ)：1.1V
- Current - DC Forward (If) (Max)：50 mA
- Vce Saturation (Max)：300mV
- Operating Temperature：-55°C ~ 100°C
- Mounting Type：Surface Mount
- Package / Case：4-SMD, Flat Leads
- Supplier Device Package：4-Mini-Flat
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Overview
The PS2911-1-K-A is a single-channel transistor output optocoupler manufactured by CEL. It features an NPN phototransistor output with a maximum collector-emitter voltage of 40 V and a collector current of 40 mA. The device provides 2500 Vrms isolation voltage and operates within a temperature range of -55°C to +100°C. Key electrical parameters include a forward voltage of 1.1 V at 50 mA, a reverse voltage of 6 V, and a power dissipation of 120 mW. Rise and fall times are specified at 5 µs and 10 µs respectively, with a saturation voltage of 300 mV.
Feature Summary
- Provides high current transfer ratio for efficient signal transmission
- Offers robust electrical isolation between input and output circuits
- Features compact surface-mount packaging for automated assembly
Applications
- Industrial control systems requiring galvanic isolation
- Power supply feedback loops
- Microcontroller interface circuits
Procurement Notes
Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm lot traceability and RoHS compliance status prior to procurement. Check for obsolete status indicators as availability may be limited. Ensure storage conditions meet specified humidity and temperature requirements to maintain performance integrity upon installation.
Selection Notes
Select this component when high CTR and wide operating temperature range are required. Verify pin compatibility with existing PCB footprints. Consider the 4-SMD package constraints for thermal management. Compare isolation voltage ratings against system safety standards. Evaluate switching speed requirements against the specified rise and fall times.
Part Context
This part belongs to the PS2911 series of single-channel optocouplers. It is designed for general-purpose isolation applications. The series typically offers variations in packaging and lead finish. Renesas Electronics also produces similar devices in this family. The CEL variant maintains standard pinout configurations for easy replacement.
Replacement Considerations
PS2911-1-AX-K is listed as a parametric equivalent substitute. Verify pinout and electrical specifications match before substitution. Check for any differences in packaging or marking codes. Ensure the substitute meets all original design requirements.
