PS2506-2

Overview

The PS2506-2 is a two-channel optically coupled isolator manufactured by CEL. It integrates a Gallium Arsenide (GaAs) infrared light emitting diode with an NPN silicon Darlington connected phototransistor output. The device provides high isolation voltage of 5000 Vrms and operates within a temperature range of -55°C to +100°C. It features a maximum power dissipation of 160 mW and supports a forward current up to 80 mA. The component is housed in an 8-pin Dual In-line Package (DIP).

Feature Summary

• High isolation voltage capability of 5000 Vrms for robust electrical separation.
• Dual-channel configuration integrating GaAs LED and NPN silicon Darlington outputs.
• Wide operating temperature range suitable for demanding industrial environments.

Applications

• Industrial automation control systems requiring signal isolation.
• Power supply circuits needing feedback loop isolation.
• Microprocessor input/output interface protection.

Procurement Notes

Verify the specific manufacturer documentation, as California Eastern Labs (CEL) acquired NEC's optocoupler business. Ensure the datasheet confirms the 5000 Vrms isolation rating and 8-DIP package type. Check for any suffix variations that may indicate different lead configurations or packaging formats. Confirm RoHS compliance status if required for your assembly process.

Selection Notes

Select this component when dual-channel isolation is required in a standard DIP footprint. The Darlington output offers high current transfer ratio but slower switching speeds compared to single transistor types. Ensure the application does not require photovoltaic outputs, as this model uses a transistor output structure. Verify thermal management requirements given the 160 mW power dissipation limit.

Part Context

The PS2506-2 belongs to the NEPOC series of high-isolation voltage optocouplers originally developed by NEC and now produced by CEL. This series includes variants with one, two, or four channels in both DIP and surface-mount packages. The PS2506-2 specifically addresses applications needing two isolated channels in a through-hole format.

Replacement Considerations

Direct replacements include other NEC/CEL PS2506-2 units from authorized distributors. Cross-referencing with similar high-isolation Darlington optocouplers requires verifying pinout compatibility and isolation voltage ratings. Ensure substitute parts match the 8-DIP package dimensions and electrical characteristics.