PS8101-A

Overview

The PS8101-A is a single-channel optically coupled isolator from the NEPOC series, manufactured by CEL. It integrates an AlGaAs LED on the input side with a PIN photodiode and high-speed amplifier transistor on the output side within a 5-pin SOP package. The device supports a data rate of 1 Mb/s and offers a maximum isolation voltage of 3750 Vrms. Key electrical parameters include a minimum current transfer ratio of 15% at 16 mA forward current, a maximum output current of 8 mA, and a supply voltage rating of 35 V. Operating temperatures range from -55°C to 100°C.

Feature Summary

• High common mode transient immunity rated at ±15 kV/μs minimum
• Compact plastic SOP-5 package designed for high-density applications
• Integrated GaAlAs LED with PIN photodiode and amplifier on a single chip

Applications

• Industrial communication systems requiring galvanic isolation
• Microprocessor input/output interface circuits
• Signal transmission across isolated ground potentials

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm lot traceability and RoHS compliance status prior to acquisition. Note that this specific part number may be obsolete; validate availability and lead times carefully. Ensure storage conditions adhere to moisture sensitivity levels specified in the datasheet to prevent package damage during soldering processes.

Selection Notes

Select this component when high common-mode rejection and moderate speed isolation are required in a small footprint. Compare current transfer ratio specifications against load requirements to ensure sufficient signal margin. Verify that the 35 V output voltage rating exceeds the downstream circuit's operating voltage. Consider thermal management capabilities within the SOP-5 package for continuous operation near the upper temperature limit.

Part Context

The PS8101 belongs to the NEPOC series of high-speed optocouplers produced by California Eastern Labs (CEL), which has been acquired by Renesas Electronics. This series focuses on providing robust isolation solutions for digital and analog signal transmission. The PS8101 variant specifically targets applications needing reliable performance in noisy environments with strict space constraints.

Replacement Considerations

Public records indicate the PS8101-A is obsolete. Potential substitutes include PS8101-F3 or PS8101-V-F4-AX-K. Verify pinout compatibility and electrical parameter alignment before substitution. Consult official manufacturer documentation for updated lifecycle status and recommended replacement parts.