描述
还有双向晶闸管输出电路，它用光电晶闸管实现隔离。双向晶闸管由关断变为导通的延迟时间小于1ms，由导通变为关断的延迟时间小于10ms。晶闸管在负载电流过小时不能导通，遇到这种情况时可以在负载两端并联电阻。
Parker 06E21A18AC Filter Regulator Pressure Gauge
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PARKER 07R313AC 1/2″ 250PSI AIR PRESSURE REGULATOR
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3957 NEW Parker PR101S20 Hyd Pressure Reducer Valve
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PARKER HHR1 SANDWICH PRESSURE REGULATOR W/GAUGE NEW
PARKER SCHRADER 0-60 PSIG 035600200 PRESSURE GAUGE NIB
