Photo-to-Electronic Module Suffix

Suffixes in photo-to-electronic module part numbers indicate specific features, output types, package styles, or other product variations.Purpose of SuffixesIn photo-to-electronic modules such as photocouplers or photorelays, the suffix in the part number provides additional information beyond the base product identifier. This can include:Output type: For example, a photorelay may have a triac or thyristor output, which is often indicated by a specific suffix in the part number .Package style: Suffixes can denote the physical package or pin configuration of the device, helping designers select the correct form factor .Special features or compliance: Some suffixes indicate compliance with standards (e.g., UL certification) or environmental specifications like lead-free or “Green” status .Manufacturer-specific identifiers: Certain suffixes are used to differentiate between minor variations in performance, internal construction, or production batches .ExamplesToshiba Photocouplers: In Toshiba's naming convention, the base part number (e.g., TLPxxxx) identifies the photocoupler, while the suffix specifies output type or package. For instance, a photorelay may use a suffix to indicate whether it has a triac output or a photorelay output .Infineon Orderable Parts: Infineon uses descriptive identifiers as suffixes (e.g., FZ900R12KE4HOSA1). These extensions provide detailed product information such as minor revisions, packaging, or internal configuration differences that do not affect the main electrical characteristics .How to InterpretIdentify the base part number: This represents the core device type.Check the suffix: Refer to the manufacturer's datasheet or part number decoder to understand what each letter or number represents.Confirm features: Ensure the suffix matches the required output type, package, or compliance for your application. Suffixes are manufacturer-specific, so always consult the datasheet or official part number guide to accurately interpret them . This ensures correct selection and avoids ordering incompatible modules.