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Product Detailed Parameters
- Description：OPTOISO 1.5KV 4CH TRANS 12-SSOP
- Series：NEPOC
- Mfr：CEL
- Package：Tape & Reel (TR)
- Number of Channels：4
- Voltage - Isolation：1500Vrms
- Current Transfer Ratio (Min)：100% @ 1mA
- Current Transfer Ratio (Max)：400% @ 1mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：20µs, 110µs
- Input Type：DC
- Output Type：Transistor
- Voltage - Output (Max)：70V
- Current - Output / Channel：20mA
- Voltage - Forward (Vf) (Typ)：1.1V
- Current - DC Forward (If) (Max)：20 mA
- Vce Saturation (Max)：300mV
- Operating Temperature：-40°C ~ 100°C
- Mounting Type：Surface Mount
- Package / Case：12-BSOP (0.173", 4.40mm Width)
- Supplier Device Package：12-SSOP
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Overview
The PS2841-4B-F4-A is a four-channel optically coupled isolator manufactured by CEL. It integrates GaAs light emitting diodes with NPN silicon phototransistors to provide electrical isolation. The device features a 1500Vrms voltage isolation rating and operates within a temperature range of -55°C to 100°C. It utilizes a 12-pin Ultra Shrink Small Outline Package (USOP) for compact surface-mount applications. Key electrical parameters include a maximum output voltage of 70V, a channel output current of 20mA, and a typical forward voltage of 1.1V.
Feature Summary
- Four independent channels for multi-signal isolation in a single package
- High-density 12-pin Ultra Shrink SOP footprint for space-constrained designs
- Robust 1500Vrms insulation strength between input and output circuits
Applications
- Industrial automation control systems requiring signal isolation
- Measurement and testing equipment needing high-voltage separation
- Power supply feedback loops for circuit protection
Procurement Notes
Verify the specific suffix F4-A against official datasheets to confirm pinout and packaging details. Confirm component status as distribution listings may indicate discontinuation. Ensure compatibility with existing PCB footprints for 12-pin USOP packages before ordering.
Selection Notes
Select this component when four isolated channels are required in a minimal footprint. Compare CTR specifications if signal transfer efficiency is critical. Verify that the 70V output voltage rating meets the load requirements of the receiving circuitry.
Part Context
This part belongs to the NEPOC series from CEL, designed for ultra-small form factor applications. It serves as an alternative to similar four-channel isolators from manufacturers like Renesas. The PS2841 series is widely recognized for its compact size relative to channel count.
Replacement Considerations
Check for direct equivalents such as the PS2841-4A or PS2845-4A. Verify pin compatibility and electrical ratings before substituting. Consult manufacturer cross-reference guides for validated replacements.
