Before revision: Diodes The part number for small JEDEC "1N"-coded diodes—in the form "1N4148" — is sometimes encoded as three or four rings in the standard color code, omitting the "1N" prefix.
After revision: Diodes The part number for small JEDEC "1N"-coded diodesin the form "1N4148" is sometimes encoded as three or four rings in the standard color code, omitting the "1N" prefix.