全部替代型号
查看完整报告技术参数
| 电源 | |
|---|---|
| Heater Voltage | V c |
| 环境与封装 | |
| Size | φ9.4×6 |
| 其他 | |
| Characteristics | High sensitivity to C2H5OH and quick response and resume |
| Concentration Slope | α |
| Detection principle | Semiconductor |
| Detection range | 20-500ppm |
| Heater consumption | PH |
| Heater Resistance | RH |
| Load resistance | R L |
| Model | MQ303B |
| Preheat time | Not less than 48 hours |
| Sensitivity | VS |
| Sensor character under standard test conditions | Zero point |
| Sensor Type | Semiconductor |
| Standard Circuit Conditions | Loop Voltage |
| Standard Encapsulation | Metal |
| Standard test circuit | Vc:3.0V±0.1V DC VH:0.9V±0.1V DC |
| Standard test conditions | Tem. Humidity |
| Target | C2H5OH |
| Target Gas | Alcohol gas |
| V0 | 0.01~0.45V |
| V H | 0.9V±0.1V AC or DC |
| Working conditions | Loop Voltage：≤6V Heater Voltage：0.9±0.1V Heater consumption：≤140mW |