18B4

18B4 is an alphanumeric designation that can refer to multiple distinct items across different fields. There is no universally standardized meaning for the code, and its exact interpretation depends on the context, including the industry, manufacturer, and product line. In many cases, such codes appear as part numbers, revision identifiers, or variant markers rather than as standalone identifiers of a single object.

In electronics and engineering, codes like 18B4 commonly occur as suffixes or mid-strings within part numbers and markings on components, boards, or equipment. They may indicate a specific revision, configuration, batch, or variant within a broader family. Because different manufacturers use their own naming conventions, the same sequence can denote different things in separate product lines.

Identification guidance:

- Consider the surrounding markings and the full part number or model code, not just 18B4 in isolation.

- Check the device’s manufacturer, model, and the context of where the code appears (e.g., a datasheet, label on a component, or service manual).

- Consult the manufacturer’s datasheet or official catalogs for the exact meaning of the suffix or code.

- Cross-reference with supplier databases or component markings databases if available.

See also:

- Part numbering

- Revision code

- Model number

- Product markings and labeling conventions