Product Overview
The MYDS18B20 series digital temperature probes, featuring the MYDS18B20/MY18E20 chips, offer high-precision digital temperature sensing with an accuracy of 0.5 within the -10C to +85C range. These probes utilize a CMOS semiconductor PN junction temperature principle, processed through signal amplification, analog-to-digital conversion, and digital calibration for a stable and reliable output. The chips support a standard single-bus communication interface, enabling multi-node sensing and networking with a single GPIO port. They are designed for low power consumption, wide operating voltage (1.8V-5.5V), and feature built-in non-volatile E2PROM for storing ID, alarm thresholds, and user-defined information. Applications include industrial monitoring, smart hardware, smart agriculture, instrumentation, and smart home appliances.
Product Attributes
- Brand: Minyuan Sensing Technology Co., Ltd.
- Website: www.mysentech.com
- Default Cable Length: 1 meter (customizable)
- Waterproof Rating: IP67
Technical Specifications
| Item | Specification |
|---|---|
| Chip Model | MYDS18B20 / MY18E20 |
| Temperature Measurement Accuracy | 0.5 @ -10C to +85C |
| Temperature Conversion Time | 500ms (default), configurable to 15ms |
| Operating Temperature Range (Probe) | -20C to +85C |
| Chip Operating Temperature Range | -55C to +125C |
| Operating Voltage Range | 1.8V to 5.5V |
| Communication Interface | Standard Single-Bus (1-Wire) |
| Digital Temperature Chip | MYDS18B20/MY18E20 |
| Stainless Steel Shell | 304 Stainless Steel, 6.0*50mm |
| Sheathed Wire | 3*0.12mm Oxygen-free Copper, Outer Diameter 3.5mm Round Wire, 1m length |
| Insulation Sleeve | 4.0mm, Black |
| Pin Configuration (GND) | Black wire |
| Pin Configuration (DQ) | Yellow/Other wire |
| Pin Configuration (VDD) | Red wire |
| Temperature Resolution | 12-bit ADC (0.0625C), configurable to 14-bit ADC (0.0125C) |
| Standby Current | 0.2A @ 5V (typical) |
| Average Current | 5A @ 1Hz (typical) |
| Additional E2PROM Space | 80-bit for user information |
| Chip ID Sequence Number | 64-bit unique ID |
| Supported Nodes (Single Bus) | Up to 100 nodes, 100-500 meters |
| Package Types | TO-92 (18B20), TO-92S (18B20S), SOP8 (18B20Z), MSOP8 (18B20U) |
| Ordering Information (MY DS18B20) | Accuracy: 0.5 (-10C~+85C), Package: TO-92, Print: 18B20, Min. Pack: 2K/bag |
| Ordering Information (MY DS18B20S) | Accuracy: 0.5 (-10C~+85C), Package: TO-92S, Print: 1820, Min. Pack: 2K/bag |
| Ordering Information (MY DS18B20Z) | Accuracy: 0.5 (-10C~+85C), Package: SOP8, Print: 18B20Z, Min. Pack: 4K/reel |
| Ordering Information (MY DS18B20U) | Accuracy: 0.5 (-10C~+85C), Package: MSOP8, Print: 18B20, Min. Pack: 5K/reel |
2404031758_Mysentech-DS18B20A10T6_C22360667.pdf
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