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The Jiangsu Weida Semiconductor BT137 Series 8A Triacs are designed for middle and small resistance type power load applications. They feature low holding and latching current, making them ideal for various power control scenarios.
| Parameter | Symbol | Value | Unit | Test Condition | Notes |
| Absolute Maximum Ratings | Tstg | -40~150 | Storage junction temperature range | ||
| Tj | -40~125 | Operating junction temperature range | |||
| VDRM/VRRM | 600/800 | V | Tj=25 | Repetitive peak off-state/reverse voltage | |
| IT(RMS) | 8 | A | RMS on-state current | ||
| ITSM | 65 | A | Non repetitive surge peak on-state current (full cycle, F=50Hz) | ||
| I2t | 21 | As | for fusing (tp=10ms) | ||
| dI/dt | 50 (--) / 10 () | A/s | Critical rate of rise of on-state current (IG=2IGT) | ||
| IGM | 2 | A | Peak gate current | ||
| PG(AV) | 0.5 | W | Average gate power dissipation | ||
| PGM | 5 | W | Peak gate power | ||
| Electrical Characteristics | IGT | 5/10/25/50 (--), 10/25/70/100 () | mA | VD=12V, RL=33 | D, E, F, G variants |
| VGT | 1.3 | V | --- | ||
| VGD | 0.2 (MIN) | V | VD=VDRM | --- | |
| IH | 10/20/40/60 (--), 20/40/70/100 () | mA | IT=100mA | MAX, IG=1.2IGT | |
| dV/dt | 20/50/100/200 | V/s | VD=0.66VDRM, Tj=125 | Gate open, MIN | |
| VTM | 1.6 | V | ITM=10A, tp=380s, Tj=25 | MAX | |
| Static Characteristics | IDRM/IRRM | 5 (Tj=25), 0.5 (Tj=125) | A/mA | VDRM= VRRM | MAX |
| Rth(j-c) | 1.8 (TO-220B/C), 2.0 (TO-252-4R), 2.8 (TO-220F), 3.0 (TO-263) | /W | junction to case(AC) |
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