PDF datasheet labelled 1n4004a, 90.8 KB, indexed under schematics. It concerns the 1N4004 rectifier, and the trailing a may be a vendor version or document suffix that…

Datasheet covering the 1N4004GP glass-passivated rectifier, a 41.9 KB PDF filed in the schematic category.

Reference sheet for the 1N4004 general purpose rectifier diode, a 68.9 KB PDF in the schematic section. No manufacturer appears in the name.

Datasheet for the 1N4003GP rectifier in a 41.9 KB PDF, placed in the schematic category. The GP suffix usually denotes a glass-passivated die.