This part is a kind of semiconductor called 1N4004S.

Function of this product has PLASTIC SILICON RECTIFIER.

Manufacturers : TRSYS

Image and pinout :

Some of the text within the PDF file :

1N4001S THRU 1N4007S PLASTIC SILICON RECTIFIER VOLTAGE - 50 to 1000 Volts CURRENT - 1.0 Ampere FEATURES l l l l l l Low forward voltage drop High current capability High reliability High surge current capability 0.6mm leads Exceeds environmental standards of MIL-S-19500/228 A-405 MECHANICAL DATA Case: Molded plastic , A-405 Epoxy: UL 94V-O rate flame retardant Lead: Axial leads, solderable per MIL-STD-202, method 208 guaranteed Polarity: Color band denotes cathode end Mounting Position: Any Weight: 0.008 ounce, 0.22 gram MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25 ambient temperature unless otherwise specified. Single phase, half wave, 60 Hz, resistive or inductive load. For capacitive load, derate current by 20%. 1N4001S 1N4002S 1N4003S 1N4004S 1N4005S 1N4006S 1N4007S [ ... ]

1N4004S PDF Datasheet Download