BT149D

NXP  BT149D  晶闸管, 400 V, 200 µA, 0.5 A, 0.8 A, TO-92, 3 引脚

The is a planar passivated Silicon Controlled Rectifier SCR with sensitive gate. It is designed to be interfaced directly to microcontrollers, logic ICs and other low power gate trigger circuits.

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Planar passivated for voltage ruggedness and reliability

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Direct triggering from low power drivers and logic ICs