MQ309A型CO气体传感器
MQ309A型CO气体传感器
MQ309A型CO气体传感器
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MQ309ACOMQ309A SnO2COCH4 10012CH4 COCH4CO3CH4 4 MQ309A
A VH(H)VH(L) 0.90V ± 0.10V AC or DC 0.2 V ??5% DC (polarity is important)V C = 6 VR L (> 10 ???) P S < 10 mWR H 3.8 ? ???0.5 ? TH (H)TH (L)DT (L)I (H)I (L) 30sec ± 5 sec 120 sec ± 10sec < 1 sec = 120 mA VH=0.9V 40? ?mW VH=0.2VPS =10 mW P S = (V C - V RL ) 2 / R S
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