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The PS2501AL-1-H-A is an optically coupled isolator manufactured by CEL. It integrates a Gallium Arsenide (GaAs) light emitting diode with an NPN silicon phototransistor to provide electrical isolation between input and output circuits. The device utilizes surface mount technology, specifically featuring a lead bending or gull-wing package configuration designed for automated assembly processes. This component serves as a signal transfer medium while maintaining high voltage isolation capabilities.
Verify the specific suffix 'H-A' against manufacturer documentation to confirm pinout and packaging details. Note that availability status may vary; some variants of this model series are reported as discontinued in certain distributor catalogs. Confirm active lifecycle status before finalizing procurement plans to ensure long-term supply stability.
Select this component when a surface mount solution is required for basic transistor-output optoisolation. Ensure the circuit design accommodates the NPN phototransistor output type and verify that the isolation voltage rating meets the system's safety requirements. Compare physical dimensions against available PCB footprint constraints prior to implementation.
This part belongs to the PS2501 family of optocouplers from CEL. The 'L' designation typically indicates the lead bending surface mount variant, distinguishing it from the through-hole DIP versions like the PS2501A-1. The family is characterized by its use of GaAs LEDs for efficient light emission and silicon phototransistors for reliable switching performance.
Direct substitutes include other single-channel NPN phototransistor optocouplers in surface mount packages. Verify compatibility regarding isolation voltage, current transfer ratio, and package dimensions when considering alternatives from different manufacturers.