Telecom Transformer
| Parameter Name | Attribute value |
| Is it lead-free? | Contains lead |
| Is it Rohs certified? | incompatible |
| Maker | Wurth Elektronik |
| Reach Compliance Code | compliant |
| ECCN code | EAR99 |
| Other features | BREADTH & HEIGHT DIM INCLUDE TERMINAL ALSO, COMPATIBLE WITH ST MICROELECTRONICS COPPER WING CHIP SET |
| Certification | UL |
| high | 9.78 mm |
| length | 9.78 mm |
| Manufacturer's serial number | 51402R |
| Installation features | SURFACE MOUNT |
| Maximum operating temperature | 85 °C |
| Minimum operating temperature | -40 °C |
| physical size | L9.78XB8.89XH9.78 (mm) |
| main impedance | 100 OHMS |
| secondary impedance | 400 OHMS |
| surface mount | YES |
| Transformer type | TELECOM TRANSFORMER |
| width | 8.89 mm |

| 51402R | 51339R | 51340R | 51349R | 51272R | |
|---|---|---|---|---|---|
| Description | Telecom Transformer | Telecom Transformer | Telecom Transformer | Telecom Transformer | Telecom Transformer |
| Is it lead-free? | Contains lead | Contains lead | Contains lead | Contains lead | Contains lead |
| Is it Rohs certified? | incompatible | incompatible | incompatible | incompatible | incompatible |
| Maker | Wurth Elektronik | Wurth Elektronik | Wurth Elektronik | Wurth Elektronik | Wurth Elektronik |
| Reach Compliance Code | compliant | compliant | compliant | compliant | compli |
| ECCN code | EAR99 | EAR99 | EAR99 | EAR99 | EAR99 |
| Other features | BREADTH & HEIGHT DIM INCLUDE TERMINAL ALSO, COMPATIBLE WITH ST MICROELECTRONICS COPPER WING CHIP SET | BREADTH & HEIGHT DIM INCLUDE TERMINAL ALSO, COMPATIBLE WITH ST MICROELECTRONICS IL3 POTS CHIP SETS | BREADTH & HEIGHT DIM INCLUDE TERMINAL ALSO, COMPATIBLE WITH ST MICROELECTRONICS IL3 POTS CHIP SETS | BREADTH & HEIGHT DIM INCLUDE TERMINAL ALSO, COMPATIBLE WITH ST MICROELECTRONICS COPPER WING CHIP SET | BREADTH & HEIGHT DIM INCLUDE TERMINAL ALSO, COMPATIBLE WITH ST MICROELECTRONICS COPPER WING CHIP SET |
| Certification | UL | IEC | IEC | UL | IEC |
| high | 9.78 mm | 12.7 mm | 12.7 mm | 9.78 mm | 12.7 mm |
| length | 9.78 mm | 13.46 mm | 13.46 mm | 9.78 mm | 13.46 mm |
| Manufacturer's serial number | 51402R | 51339R | 51340R | 51349R | 51272R |
| Installation features | SURFACE MOUNT | SURFACE MOUNT | SURFACE MOUNT | SURFACE MOUNT | SURFACE MOUNT |
| Maximum operating temperature | 85 °C | 85 °C | 85 °C | 85 °C | 85 °C |
| Minimum operating temperature | -40 °C | -40 °C | -40 °C | -40 °C | -40 °C |
| physical size | L9.78XB8.89XH9.78 (mm) | L13.46XB17.75XH12.7 (mm) | L13.46XB17.75XH12.7 (mm) | L9.78XB8.89XH9.78 (mm) | L13.46XB17.75XH12.7 (mm) |
| surface mount | YES | YES | YES | YES | YES |
| Transformer type | TELECOM TRANSFORMER | TELECOM TRANSFORMER | TELECOM TRANSFORMER | TELECOM TRANSFORMER | TELECOM TRANSFORMER |
| width | 8.89 mm | 17.75 mm | 17.75 mm | 8.89 mm | 17.75 mm |
| main impedance | 100 OHMS | 100 OHMS | - | - | 100 OHMS |
| secondary impedance | 400 OHMS | 100 OHMS | - | - | 196 OHMS |
| Base Number Matches | - | 1 | 1 | 1 | - |