BT149D - WeEn

BT149D SCR

Planar passivated Silicon Controlled Rectifier in a SOT54 (TO-92) plastic package. This SCR is designed to be interfaced directly to microcontrollers, logic ICs and other low power gate trigger circuits. 2. Features and benefits • Planar passivated for voltage ruggedness and reliability • Sensitive gate • Direct triggering from low power drivers and logic I.

Features

• Planar passivated for voltage ruggedness and reliability
• Sensitive gate
• Direct triggering from low power drivers and logic ICs
• A-G-K reverse pin-out 3. Applications
• General purpose switching and phase control
• Low power circuits 4. Quick reference data Table 1. Quick reference data Symbol Parameter Conditions VRRM repetitive peak reverse voltage IT(AV) average on-state current half sine wave; Tlead ≤ 83 °C; Fig. 1 IT(RMS) RMS on-state current half sine wave; Tlead ≤ 83 °C; Fig. 2; Fig. 3 ITSM non-repetitive peak on- half sine wave; Tj(init) = 25 °C; state current tp.