| BT137B | TRIACs |
| BT137S | TRIACs |
| BT137S | TRIACs |
| BT137X | TRIACs |
| BT137B | TRIACs |
| BT137S | TRIACs |
| BT137F | TRIACs |
| BT137F | TRIACs |
| BT137F-600D | TRIACs |
| BT137B-600D | TRIACs |
| BT137S-Series | TRIACs |
| BT137B-Series | TRIACs |
| BT137-Series | TRIACs |
| BT137 | TRIACs |
| BT137X-600D | TRIACs |
| BT137S-600D | TRIACs |
| BT137X | TRIACs |
| BT137X-Series-E | TRIACs |
| BT137S-Series-E | TRIACs |
| BT137-Series-E | TRIACs |
| BT137S-Series | TRIACs |
| BT137B-Series | TRIACs |
| BT137-Series | TRIACs |
| BT137 | TRIACs |
| BT137X-600D | TRIACs |
| BT137X | TRIACs |
| BT137X-Series-E | TRIACs |
| BT137S-Series-E | TRIACs |
| BT137-Series-E | TRIACs |