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Product Detailed Parameters
- Description：OPTOISOLATOR 5KV 1CH TRANS 4-SMD
- Series：NEPOC
- Mfr：CEL
- Package：Tape & Reel (TR)
- Number of Channels：1
- Voltage - Isolation：5000Vrms
- Current Transfer Ratio (Min)：20% @ 100mA
- Current Transfer Ratio (Max)：80% @ 100mA
- 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)：1.3V
- Current - DC Forward (If) (Max)：150 mA
- Vce Saturation (Max)：300mV
- 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 PS2521L-1-E3-A is a single-channel transistor output optocoupler manufactured by CEL. It features an NPN phototransistor output and operates with a DC input. The device provides high isolation voltage of 5000 Vrms, ensuring safe signal transmission between isolated circuits. Key electrical parameters include a maximum collector-emitter voltage of 80 V, a continuous collector current of 50 mA, and a forward current rating of 80 mA. The component is housed in a 4-SMD surface-mount package, suitable for automated assembly processes.
Feature Summary
- High isolation voltage capability for reliable circuit separation
- Single channel design for compact integration
- NPN phototransistor output configuration
Applications
- General purpose signal isolation
- Microprocessor interface circuits
- Solid-state relay driver applications
Procurement Notes
Verify the specific suffix E3 indicates RoHS compliance when sourcing. Confirm the 4-SMD package type matches your PCB footprint requirements. Check manufacturer lifecycle status as availability may vary. Ensure the operating temperature range meets your environmental specifications before finalizing procurement decisions.
Selection Notes
Select this component when high isolation voltage is required in a small surface-mount form factor. Compare the 50 mA collector current limit against load requirements. Verify that the 80 V output voltage rating exceeds the maximum circuit potential. Consider the SMD package for automated manufacturing efficiency compared to through-hole alternatives.
Part Context
This part belongs to the PS2521 series of transistor output optocouplers from CEL. The series offers various packaging options including DIP and SMD configurations. The PS2521L-1-E3-A specifically denotes the lead-free, RoHS-compliant version in a surface-mount package. It serves as a modern replacement for older through-hole variants in space-constrained designs.
Replacement Considerations
Cross-reference with PS2521L-1-A for identical functional performance in non-RoHS contexts. Verify pinout compatibility when substituting other single-channel transistor optocouplers. Ensure isolation voltage ratings meet or exceed the original design requirements during any component swap.
