| PartNumber | BT138-800,127 | BT138-800E,127 | BT138-800/DG,127 |
| Description | Triacs RAIL TRIAC | Triacs RAIL TRIAC | Triacs 4Q TRIAC |
| Manufacturer | WeEn Semiconductors | WeEn Semiconductors | WeEn Semiconductors |
| Product Category | Triacs | Triacs | Triacs |
| RoHS | Y | Y | E |
| On State RMS Current It RMS | 12 A | 12 A | 12 A |
| Non Repetitive On State Current | 105 A | 105 A | 105 A |
| Rated Repetitive Off State Voltage VDRM | 800 V | 800 V | 800 V |
| Off State Leakage Current @ VDRM IDRM | 100 uA | 0.1 mA | 0.1 mA |
| On State Voltage | 1.4 V | 1.4 V | 1.4 V |
| Holding Current Ih Max | 30 mA | 30 mA | 30 mA |
| Gate Trigger Voltage Vgt | 700 mV | 0.7 V | 0.7 V |
| Gate Trigger Current Igt | 22 mA | 11 mA | 22 mA |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 125 C | + 125 C | + 125 C |
| Mounting Style | Through Hole | Through Hole | Through Hole |
| Package / Case | TO-220-3 | TO-220AB-3 | TO-220AB-3 |
| Brand | WeEn Semiconductors | WeEn Semiconductors | WeEn Semiconductors |
| Product Type | Triacs | Triacs | Triacs |
| Factory Pack Quantity | 1000 | 1000 | 1000 |
| Subcategory | Thyristors | Thyristors | Thyristors |
| Part # Aliases | 933389620127 BT138-800 | 933560760127 BT138-800E | 934065576127 |
| Unit Weight | 0.211644 oz | 0.211644 oz | 0.211644 oz |