ShenzhenYijiajie Electronic Co., Ltd.
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram |
| Delivery Time | 3-5workingdays |
| Supply Ability | 5000PCS |
| Packaging Details | Standard packaging |
| Load resistor | 47 To 100 |
| Storage period | 6 |
| Humidity range | 5 To 95 |
| Temperature range | -30 To 55℃ |
| Pressure range | 80 To 120kpa |
| Weight | <16.5g |
| Brand Name | Alphasense |
| Model Number | O2-A3 |
| Place of Origin | UK |
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Product Specification
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram | Delivery Time | 3-5workingdays |
| Supply Ability | 5000PCS | Packaging Details | Standard packaging |
| Load resistor | 47 To 100 | Storage period | 6 |
| Humidity range | 5 To 95 | Temperature range | -30 To 55℃ |
| Pressure range | 80 To 120kpa | Weight | <16.5g |
| Brand Name | Alphasense | Model Number | O2-A3 |
| Place of Origin | UK | ||
| High Light | Long Life Oxygen Sensor ，Petrochemical Industries Oxygen Sensor ，Coal Mines Oxygen Sensor | ||
Application Scenarios:
Electrical and Mechanical Considerations:
| Warranty & Lifespan | Warranty Period | 3 - year warranty |
| Expected Operating Life | Operates for over 36 months until output reaches 85% of original at 20.9% O₂; Output change < 2% over 3 months | |
| Response Time | t90 | < 15 seconds (e.g., for 20.9% to 0% O₂ change with 47W load resistor) |
| Environmental Resistance | Humidity Resistance | < 0.7% humidity affect; Continuous operation: 5 - 95% rh (non - condensing); Short - term: Up to 99% rh (non - condensing) |
| CO₂ Sensitivity | < 0.1% | |
| Pressure & Temperature Dependence | Good performance in varying pressure conditions; Ideal for safety apps (vs partial pressure sensors) | |
| Measurement Range | Oxygen Concentration | 0.1 - 20.9% O₂ |
| Output Characteristics | Output Current (22℃, 20.9% O₂) | 55 - 85 μA |
| Zero Current Output (0% O₂, 99.99% N₂, 22℃) | < 2.5 μA | |
| Linearity | 0.6% O₂ deviation at 10% O₂ | |
| Output Drift | < 1% change in 3 months | |
| Physical Specifications | Size | Diameter: 20mm; Overall dimensions: 17.4 mm x 20.3 mm |
| Application Scenarios | Safety (mines, confined spaces, etc.); Potential medical gas - related equipment (with adaptation); Air quality monitoring | |
| Electrical & Mechanical | Replacement & Soldering | Plug - in for hand - held gas detectors using O2 - A3; Not recommended to solder pins; Pin sockets available via Andon distributors |
| Brand & Design | Technology & Advantage | Capillary flow control; Lead - free, longer lifetime than lead - based sensors; Minimizes leaks, reduces mid - contract servicing; Part of Alphasense ‘D’ family, available in different sizes |
Company Details
Business Type:
Manufacturer,Trading Company
Year Established:
2006
Total Annual:
900000-1000000
Employee Number:
50~80
Ecer Certification：
Verified Supplier
Yijiajie Electronics is a full range of silicon pressure sensors from the United States, FREESCALE/, GE, MEAS, SMI, and a full range of sensing and control products from the United States pressure, temperature and humidity, gas flow, current, Hall effect, etc., Japan HAMAMATSU flame, UV sensors, ph... Yijiajie Electronics is a full range of silicon pressure sensors from the United States, FREESCALE/, GE, MEAS, SMI, and a full range of sensing and control products from the United States pressure, temperature and humidity, gas flow, current, Hall effect, etc., Japan HAMAMATSU flame, UV sensors, ph...
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