Changsha Purple Horn E-Commerce Co., Ltd.
| Humidity Tolerance | 5%RH |
| Temperature Range | 0℃~+60℃ |
| Humidity | 0%RH~100%RH |
| Description | 5%RH 0℃~+60℃ 0%RH~100%RH Through Hole Humidity, Moisture Sensors RoHS |
| Mfr. Part # | CDP-07B |
| Package | Through Hole |
| Model Number | CDP-07B |
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Product Specification
| Humidity Tolerance | 5%RH | Temperature Range | 0℃~+60℃ |
| Humidity | 0%RH~100%RH | Description | 5%RH 0℃~+60℃ 0%RH~100%RH Through Hole Humidity, Moisture Sensors RoHS |
| Mfr. Part # | CDP-07B | Package | Through Hole |
| Model Number | CDP-07B |
The CDP-07 Dew Sensor is a new generation condensation detection device featuring a positive characteristic switch-type element near the atmospheric dew point. It is insensitive to low humidity but highly sensitive to high humidity, offering good repeatability, low hysteresis, and rapid, precise response. The sensor is resistant to contamination, operates reliably on DC voltage, and is suitable for applications requiring precise condensation control, such as high-voltage cabinets, magnetic heads, home appliances, and smart protection products.
| Parameter | Value | Notes |
|---|---|---|
| Product Model | CDP-07 | A/B/C (Resistance Grade) |
| Working Voltage Range | 0.8V AC/DC | Safety Voltage |
| Power Consumption | 0.2mW | |
| Working Temperature Range | 060 | |
| Working Humidity Range | 0100%RH | |
| Dew Point Test Range | 93100%RH | |
| Hysteresis | <=5%RH | |
| Response Time | 10S | (Impedance > 200K) |
| Impedance Characteristics (at 25C) | 75%RH: A:1-2K, B:2-3K, C:3-4K | |
| Impedance Characteristics (at 25C) | 90%RH: A:20K, B:40K, C:100K | |
| Impedance Characteristics (at 25C) | 93%RH: A:200K, B:250K, C:300K | |
| Standard Calibration Conditions | Temperature: 25, Humidity: 75%RH, 90%RH, 93-95%RH, Working Voltage: 0.8VDC | Using constant humidity device (Jufun) and multimeter |
The sensor utilizes a DC voltage divider circuit for sampling, followed by a comparator and shaping circuit. For microcontroller A/D sampling, it is recommended to set a comparison hysteresis in software to prevent frequent equipment startups. The sensor sampling comparison resistor R1 should be >=47K (Type A) or >=68K (Type B).
Circuit Design Considerations: For long-term operation under DC voltage, the working voltage must be kept below 0.8VDC to prevent water molecule decomposition, which can damage the polymer material. To limit current when the sensor is in the ON state (condensation detected), the sampling comparison resistor R1 should be >=47K (or 68K). Adjusting the reference voltage (R2, R3) can fine-tune the activation point.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Importer
Year Established:
2009
Employee Number:
300~500
Ecer Certification：
Verified Supplier
Changsha Purple Horn E-Commerce Co., Ltd.. is a professional company focus on integrated circuit ic business. Purple Horn will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining and manufacture. Founded in 2009, Our compa... Changsha Purple Horn E-Commerce Co., Ltd.. is a professional company focus on integrated circuit ic business. Purple Horn will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining and manufacture. Founded in 2009, Our compa...
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