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PS2503L-1-A CEL Transistor Output Optocouplers Hi-Speed Switch 1-Ch Transistor Output Optocouplers Pricing and Availability. 
Function, Single Tr.(Low Input Current), High isolation voltage, High-speed. Safety standard, UL, CSA. Target application, Power supply, Telephone, FAX, FA, ... 
The PS2503-1 and PS2503L-1 are optically coupled isolators containing a ... The PS2503-1 is in a plastic DIP (Dual In-line Package) and the PS2503L-1 is lead ... 
Find CEL PS2503L-1-A (PS2503L-1A-ND) at DigiKey. Check stock and pricing, view product specifications, and order online. 
PS2503-1, -2, -4 are in a plastic DIP (Dual In-line Package) and PS2503L-1, -2, - 4 are lead bending type (Gull- wing) for surface mount. FEATURES. 
The PS2503-1, -2, -4 and PS2503L-1, -2, -4 are optically coupled isolators containing a GaAs light emitting diode and an NPN silicon phototransistor.