ShenzhenYijiajie Electronic Co., Ltd.
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram |
| Supply Ability | 2200 |
| Delivery Time | 5-8 days |
| Packaging Details | Box pack |
| Heater Resistance | 95 ± 10 Ω (at room temperature) |
| Heater Power Consumption | ≤ 300 mW |
| Sensitive Element Resistance (Rₛ) | 10 kΩ – 100 kΩ (at 50 ppm H₂) |
| Sensitivity | ≥ 3 (at 50 ppm H₂) |
| Concentration Slope | ≤ 0.6 (for H₂) |
| Standard Test Conditions | Temperature: 20 ± 2 ℃ |
| Warm-up Time | ≥ 48 hours |
| Storage Temperature Range | -20 ℃ – +60 ℃ |
| Brand Name | YJJ |
| Model Number | MP135 |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram | Supply Ability | 2200 |
| Delivery Time | 5-8 days | Packaging Details | Box pack |
| Heater Resistance | 95 ± 10 Ω (at room temperature) | Heater Power Consumption | ≤ 300 mW |
| Sensitive Element Resistance (Rₛ) | 10 kΩ – 100 kΩ (at 50 ppm H₂) | Sensitivity | ≥ 3 (at 50 ppm H₂) |
| Concentration Slope | ≤ 0.6 (for H₂) | Standard Test Conditions | Temperature: 20 ± 2 ℃ |
| Warm-up Time | ≥ 48 hours | Storage Temperature Range | -20 ℃ – +60 ℃ |
| Brand Name | YJJ | Model Number | MP135 |
| Place of Origin | CHINA | ||
| High Light | MOS gas sensor for H2 detection ，metal oxide semiconductor CO sensor ，500PPM alcohol gas detector | ||
Product Description:
MP135 10 - 500PPM Metal Oxide Semiconductor (MOS) Gas Sensor Is Used For H2 Alcohol And CO Detection
Features:
MP135 10 - 500 ppm Metal Oxide Semiconductor (MOS) gas sensor is used for detecting H2, alcohol and CO.
Parameters Symbol / Unit Typical Value / Range Remarks
Detected Gas — H2, alcohol, CO Also responds to VOCs, a non-selective device
Detection Range ppm H2: 10 - 500;
alcohol: 5 - 500; CO: 10 - 500 Part of the information can also be found in the description of 10 - 1000 ppm, with 500 ppm as the typical upper limit
Loop Voltage Vc ≤ 24 V DC Standard test Vc = 5.0 ± 0.1 V
Heating Voltage Vh 5.0 ± 0.1 V AC/DC Standard test Vh = 5.0 ± 0.1 V
Load Resistance Rl Adjustable By voltage division, the change of Rs is converted into voltage output
Heating Resistance Rh 95 ± 10 Ω (room temperature) Different batches / data are approximately 85 - 130 Ω, measured values are taken as the standard
Heating Power Consumption Ph ≤ 300 mW Other data also describe ≤ 240 mW
Sensitive Body Resistance Rs 10 kΩ - 100 kΩ (50 ppm H2) Changes with gas type / concentration
Sensitivity S ≥ 3 (50 ppm H2) S = Rs (air) / Rs (50 ppm H2)
Concentration Slope α ≤ 0.6 (H2) α = R (100 ppm) / R (30 ppm)
Standard Test Conditions — T = 20 ± 2 ℃; RH = 65 ± 5%; Vc = 5.0 ± 0.1 V; Vh = 5.0 ± 0.1 V Data is based on these conditions
Preheating Time — ≥ 48 hours New pieces / after long storage, sufficient preheating is required to stabilize performance
Package / Pin — Metal package, DIP-4 1/2 pin for heating; 3/4 pin for measurement
Working Principle — Metal Oxide Semiconductor (MOS) Resistance increases with the concentration of the target gas
Selection and Usage Tips
Detection Range and Sensitivity: With 500 ppm as the typical upper limit; for H2, the sensitivity S ≥ 3 at 50 ppm is the benchmark, actual assessment requires considering the type and concentration of the gas.
Power Supply and Heating: Loop Voltage ≤ 24 V DC; Heating Vh = 5.0 ± 0.1 V (AC/DC); Heating Resistance Rh ≈ 95 ± 10 Ω, Power Consumption ≤ 300 mW (different data have ≤ 240 mW), please refer to the actual measurement / batch specifications.
Load Resistance Rl: Adjustable, used to convert Rs changes into voltage output; Rl selection will affect sensitivity and linearity, calibration should be performed in the target gas.
Environment and Stability: Standard test conditions are 20 ± 2 ℃, 65 ± 5% RH; for long-term storage, it is recommended to store at -20 to +60 ℃, dry and sealed; avoid exposure to high-concentration gases, silicon vapor and water condensation before powering on.
Preheating and Aging: New pieces or after long storage, preheating ≥ 48 hours; the aging time should be extended accordingly for longer storage periods.
Non-selectivity and Cross-Sensitivity: Responds to H2, alcohol, CO and some VOCs; calibration in the target gas and assessment of interference based on the application scenario are required.
Data Variations Explanation
Detection Range: Some data provide 10 - 1000 ppm, the mainstream specification is 10 - 500 ppm, actual selection should refer to the current specification sheet of the manufacturer.
Heating Parameters: Rh is commonly 85 - 130 Ω, 95 ± 10 Ω is more common; Ph has two expressions ≤ 300 mW and ≤ 240 mW, they are normal batch differences.
Specifications:
| Parameter | Symbol/Unit | Typical Value/RANGE |
| Detected Gases | — | Hydrogen (H₂), Alcohol (Ethanol), Carbon Monoxide (CO) |
| Detection Range | ppm | H₂: 10 – 500 ppm; Alcohol: 5 – 500 ppm; CO: 10 – 500 ppm |
| Circuit Voltage (Measurement Loop) | Vc | ≤ 24 V DC |
| Heater Voltage | Vh | 5.0 ± 0.1 V (AC/DC) |
| Load Resistance | Rₗ | Adjustable |
| Heater Resistance | Rₕ | 95 ± 10 Ω (at room temperature) |
| Heater Power Consumption | Pₕ | ≤ 300 mW |
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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