The BT137-800D is a high-performance triac designed for general-purpose switching applications. It offers reliable control for AC power circuits.
| SYMBOL | MIN. | TYP | MAX. |
| A | 2.30 | 2.40 | 2.50 |
| A1 | 0.00 | 0.05 | 0.12 |
| b | 0.50 | 0.60 | 0.70 |
| b1 | 0.70 | 0.80 | 0.90 |
| c | 0.40 | 0.50 | 0.60 |
| D | 6.20 | 6.30 | 6.50 |
| E | 5.40 | 5.50 | 5.70 |
| e | 2.20 | 2.30 | 2.40 |
| L | 9.60 | 10.00 | 10.40 |
| L1 | 2.90 | 3.10 | 3.30 |
| e1 | 4.40 | 4.60 | 4.80 |
| c1 | 0.40 | 0.50 | 0.60 |
| B | 1.20 | 1.40 | 1.60 |
| A2 | 2.25 | 2.35 | 2.40 |
| L2 | 1.40 | 1.55 | 1.70 |
| L3 | 0.70 | 0.80 | 1.00 |
| 4 | |||
| D1 | 5.20 | 5.30 | 5.50 |