| PartNumber | BT139-800,127 | BT139-800G,127 | BT139-800E,127 |
| Description | Triacs RAIL TRIAC | Triacs RAIL TRIAC | Triacs RAIL TRIAC |
| Manufacturer | WeEn Semiconductors | WeEn Semiconductors | WeEn Semiconductors |
| Product Category | Triacs | Triacs | Triacs |
| RoHS | Y | Y | Y |
| On State RMS Current It RMS | 16 A | 16 A | 16 A |
| Non Repetitive On State Current | 170 A | 170 A | 170 A |
| Rated Repetitive Off State Voltage VDRM | 800 V | 800 V | 800 V |
| Off State Leakage Current @ VDRM IDRM | 0.1 mA | 0.1 mA | 100 uA |
| On State Voltage | 1.2 V | 1.2 V | 1.2 V |
| Holding Current Ih Max | 45 mA | 60 mA | 45 mA |
| Gate Trigger Voltage Vgt | 0.7 V | 0.7 V | 700 mV |
| Gate Trigger Current Igt | 22 mA | 22 mA | 25 mA |
| Maximum Operating Temperature | + 125 C | + 125 C | + 125 C |
| Mounting Style | Through Hole | Through Hole | Through Hole |
| Package / Case | TO-220AB-3 | TO-220AB-3 | TO-220-3 |
| Brand | WeEn Semiconductors | WeEn Semiconductors | WeEn Semiconductors |
| Product Type | Triacs | Triacs | Triacs |
| Factory Pack Quantity | 1000 | 1000 | 1000 |
| Subcategory | Thyristors | Thyristors | Thyristors |
| Part # Aliases | 933392570127 BT139-800 | 933599210127 BT139-800G | 933580060127 BT139-800E |
| Unit Weight | 0.211644 oz | 0.211644 oz | 0.211644 oz |
| Minimum Operating Temperature | - | - | - 40 C |