- Product information
- Focusens Solution
- Typical Application
- Technical Specifications & Selection Guide
- How Do We Control Quality?
- Are You Facing Any of These Temperature Sensor Problems?
- Why Choose Our DS18B20 Digital Temperature Sensor Probe?
- Frequently Asked Questions
- Purchase history
- Customer Reviews
- Buyers Q & A
Model：FST Series-DS18B20
Key Feature：Digital Output
MOQ(Standard)：500 pcs
MOQ(Customized)：TBD
Fucusens Solution
From DS18B20 Sensor to a Ready-to-Install Digital Temperature Probe
DS18B20 sensor alone does not solve the full equipment integration requirement. The finished assembly must also match: Housing + Probe Dimensions + Cable + Mounting + Connector + Installation Environment.
Our Capability | What It Solves | Value to Your Business |
DS18B20 Digital Sensor | Analog signal processing is not preferred | Direct digital temperature measurement |
1-Wire Communication | Too many signal lines increase wiring complexity | Simplified interface |
Programmable Resolution | Different applications need different measurement settings | 9-to-12 bit selectable resolution |
Programmable Alarm Function | Temperature limits need monitoring | Supports upper and lower trigger points |
Wide Measuring Range | One sensor needs to cover different temperatures | -55°C to +125°C |
Custom Housing | Standard probe does not fit equipment | Match mounting requirements |
Custom Cable | Standard wire cannot meet installation needs | Adapt insulation, gauge and length |
Accessories Available | Additional installation parts are required | Easier system integration |
Typical Applications
Application | Typical Customer | Recommended Solution | Why This Configuration |
Heating Systems | Heating equipment and controller manufacturers | DS18B20 digital temperature probe | Wide measuring range and digital output support temperature monitoring |
Measuring Instruments | Instrument and measurement equipment manufacturers | Customized DS18B20 sensor assembly | Digital output simplifies temperature data acquisition |
Washing Machines | Appliance manufacturers | Waterproof / customized DS18B20 probe | Suitable for equipment requiring digital temperature monitoring |
Over-Temperature Protection | Equipment and controller manufacturers | DS18B20 probe with programmable alarm thresholds | Upper and lower trigger points support temperature protection logic |
General Equipment Monitoring | OEM equipment manufacturers | Customized DS18B20 digital temperature sensor | Housing, cable and mounting can be matched to equipment |
Environmental Temperature Monitoring | Monitoring equipment manufacturers | DS18B20 or suitable digital sensor assembly | Digital output supports environmental temperature monitoring |
Technical Specifications & Selection Guide
Parameter | Specification | Selection Notes |
Sensing Element | DS18B20 Digital Temperature Sensor | 1-Wire digital sensor |
Measurement Range | -55°C to +125°C | According to supplied specification |
Accuracy | ±0.5°C from -10°C to +85°C | Main accuracy range |
Extended Accuracy | ±2°C from -55°C to +125°C | According to supplied data |
Resolution | 9-bit to 12-bit selectable | User programmable |
Power Supply | 3.0V to 5.5V | Match controller supply |
Work Current | 1.5mA | According to technical data |
Standby Current | 1μA | Low standby consumption |
Output Pin Sink Current | 4mA @ VI/O = 0.4V | According to supplied data |
Conversion Time | Up to 750ms at 12-bit | Maximum conversion time |
Output | Open-drain 1-Wire interface | Digital communication |
Alarm Function | Programmable upper / lower trigger points | Supports temperature monitoring |
Drift | ±0.2°C after 1000h stress at +125°C, VDD = 5.5V | According to supplied specification |
Housing | Customizable | According to mounting requirement |
Cable | Customizable | Insulation, gauge and length adaptable |
Accessories | Available on request | According to application |
Product Structure & Selection Guide
Temperature Range — Normal and maximum operating temperature.
Required Accuracy — Confirm whether the ±0.5°C range meets the application.
Resolution Requirement — Choose 9-bit to 12-bit according to measurement and conversion requirements.
Probe Structure & Size — Match the installation space and sensing position.
Housing Material — Select according to environment and mounting requirements.
Cable Insulation / Gauge / Length — Match temperature, wiring distance and equipment requirements.
Power Supply — Confirm compatibility with 3.0V to 5.5V.
Connector / Accessories — Match the existing equipment interface.
3 Common Mistakes When Selecting a Pipe-Mounted NTC Sensor
Common Mistake | Why It Matters | Better Choice |
Assuming ±0.5°C Applies Across the Full Range | The specified ±0.5°C accuracy applies from -10°C to +85°C, not the entire measuring range. | Confirm the required accuracy according to the actual operating temperature range. |
Ignoring Resolution and Conversion Time | Higher resolution provides finer temperature data, but it also affects temperature conversion time. | Select the required 9–12 bit resolution based on response speed and measurement needs. |
Focusing Only on the Sensor IC | Probe performance also depends on the housing, cable, waterproofing, connector and installation structure. | Evaluate the DS18B20 + Probe + Cable + Mounting as one complete sensing solution. |
DS18B20 Sensor to a Ready-to-Install Digital Temperature Probe
DS18B20 sensor alone does not solve the full equipment integration requirement. The finished assembly must also match: Housing + Probe Dimensions + Cable + Mounting + Connector + Installation Environment.
Our Capability | What It Solves | Value to Your Business |
DS18B20 Digital Sensor | Analog signal processing is not preferred | Direct digital temperature measurement |
1-Wire Communication | Too many signal lines increase wiring complexity | Simplified interface |
Programmable Resolution | Different applications need different measurement settings | 9-to-12 bit selectable resolution |
Programmable Alarm Function | Temperature limits need monitoring | Supports upper and lower trigger points |
Wide Measuring Range | One sensor needs to cover different temperatures | -55°C to +125°C |
Custom Housing | Standard probe does not fit equipment | Match mounting requirements |
Custom Cable | Standard wire cannot meet installation needs | Adapt insulation, gauge and length |
Accessories Available | Additional installation parts are required | Easier system integration |
Application | Typical Customer | Recommended Solution | Why This Configuration |
Heating Systems | Heating equipment and controller manufacturers | DS18B20 digital temperature probe | Wide measuring range and digital output support temperature monitoring |
Measuring Instruments | Instrument and measurement equipment manufacturers | Customized DS18B20 sensor assembly | Digital output simplifies temperature data acquisition |
Washing Machines | Appliance manufacturers | Waterproof / customized DS18B20 probe | Suitable for equipment requiring digital temperature monitoring |
Over-Temperature Protection | Equipment and controller manufacturers | DS18B20 probe with programmable alarm thresholds | Upper and lower trigger points support temperature protection logic |
General Equipment Monitoring | OEM equipment manufacturers | Customized DS18B20 digital temperature sensor | Housing, cable and mounting can be matched to equipment |
Environmental Temperature Monitoring | Monitoring equipment manufacturers | DS18B20 or suitable digital sensor assembly | Digital output supports environmental temperature monitoring |
Technical Data
Parameter | Specification | Selection Notes |
Sensing Element | DS18B20 Digital Temperature Sensor | 1-Wire digital sensor |
Measurement Range | -55°C to +125°C | According to supplied specification |
Accuracy | ±0.5°C from -10°C to +85°C | Main accuracy range |
Extended Accuracy | ±2°C from -55°C to +125°C | According to supplied data |
Resolution | 9-bit to 12-bit selectable | User programmable |
Power Supply | 3.0V to 5.5V | Match controller supply |
Work Current | 1.5mA | According to technical data |
Standby Current | 1μA | Low standby consumption |
Output Pin Sink Current | 4mA @ VI/O = 0.4V | According to supplied data |
Conversion Time | Up to 750ms at 12-bit | Maximum conversion time |
Output | Open-drain 1-Wire interface | Digital communication |
Alarm Function | Programmable upper / lower trigger points | Supports temperature monitoring |
Drift | ±0.2°C after 1000h stress at +125°C, VDD = 5.5V | According to supplied specification |
Housing | Customizable | According to mounting requirement |
Cable | Customizable | Insulation, gauge and length adaptable |
Accessories | Available on request | According to application |
Sensor Construction & Selection Guide
Temperature Range — Normal and maximum operating temperature.
Required Accuracy — Confirm whether the ±0.5°C range meets the application.
Resolution Requirement — Choose 9-bit to 12-bit according to measurement and conversion requirements.
Probe Structure & Size — Match the installation space and sensing position.
Housing Material — Select according to environment and mounting requirements.
Cable Insulation / Gauge / Length — Match temperature, wiring distance and equipment requirements.
Power Supply — Confirm compatibility with 3.0V to 5.5V.
Connector / Accessories — Match the existing equipment interface.
3 Common Mistakes When Selecting a Clamp-Mount NTC Sensor
Common Mistake | Why It Matters | Better Choice |
Assuming ±0.5°C Applies Across the Full Range | The specified ±0.5°C accuracy applies from -10°C to +85°C, not the entire measuring range. | Confirm the required accuracy according to the actual operating temperature range. |
Ignoring Resolution and Conversion Time | Higher resolution provides finer temperature data, but it also affects temperature conversion time. | Select the required 9–12 bit resolution based on response speed and measurement needs. |
Focusing Only on the Sensor IC | Probe performance also depends on the housing, cable, waterproofing, connector and installation structure. | Evaluate the DS18B20 + Probe + Cable + Mounting as one complete sensing solution. |
Digital Sensor Performance Depends on Both Electronics and Assembly
For a DS18B20 temperature probe, reliable operation depends on: Sensor Function + Wiring + Probe Structure + Cable + Connector + Mounting.
Incoming Material Inspection
· Probe housing materials verified
· Cable insulation and conductor specification checked
· Connectors and accessories inspected according to project requirements
Process Control
· Sensing element positioned according to probe design
· Probe dimensions controlled according to drawing
· Cable length and gauge verified
· Connector / termination checked before final assembly
Finished Product Inspection
Test Item | Verification |
Sensor Function | Digital temperature output check |
1-Wire Communication | Functional verification |
Temperature Measurement | According to confirmed test requirement |
Probe Dimensions | According to approved drawing |
Cable Length | According to specification |
Connector / Termination | According to confirmed interface |
Electrical Connection | Functional check before shipment |
Appearance | Finished assembly inspection |
If You Are an Equipment Manufacturer / OEM
Common Problem | What It Means for Your Business |
Analog temperature sensing requires additional circuitry | Extra signal conditioning increases system design work |
Too many signal lines increase wiring complexity | Equipment integration becomes more difficult |
Standard probe dimensions do not fit | Different products require different housing and mounting structures |
Cable specifications do not match the equipment | Incorrect insulation, gauge or length requires modification |
The sensor needs programmable temperature alarms | External monitoring logic may add complexity |
Accuracy requirements vary by temperature range | A single accuracy figure may not represent the full operating range |
If You Are a Distributor / Importer
Common Problem What It Means for Your Business Customers require different probe structures One standard housing cannot cover every project Customers need different cable specifications Fixed wire options limit OEM opportunities Different projects require different accessories Standard assemblies may not install directly Customers need digital output Analog sensor products cannot cover all applications Technical matching takes too long Temperature range, interface and mechanical structure must be confirmed together
Need More Than a DS18B20 Sensor?
The DS18B20 provides the digital sensing function, but your equipment still needs the right: Housing + Probe + Cable + Connector + Mounting Structure
Send us your drawing, existing sensor or application requirements.
Sample Support
Standard Samples — Available according to current specifications and stock.
Customized Samples — Available after specification confirmation.
Housing Customization — Size and configuration according to mounting requirements.
Cable Customization — Insulation, gauge and length according to application.
Connector / Accessories — Available according to equipment interface.
Technical Support — Support for DS18B20 probe integration and selection.
Sample Validation Before Mass Production
We recommend confirming: Temperature Measurement → 1-Wire Communication → Resolution → Probe Structure → Cable → Connector → Installation. For customized assemblies, sample testing in the actual equipment is recommended before mass production.
Quality Assurance
Sensor Component — According to confirmed DS18B20 specification.
Probe Dimensions — According to approved drawing.
Cable — According to confirmed insulation, gauge and length.
Connector / Accessories — According to equipment interface.
Customized Products — Specifications confirmed before mass production.
Finished Assembly — Functional verification before shipment.
MOQ & Lead Time
Standard Product MOQ — Contact us for current MOQ.
Customized MOQ — Depends on housing, cable and accessory requirements.
Standard Lead Time — Contact us for current production schedule.
Customized Lead Time — Depends on assembly configuration.
Sample Lead Time — Confirmed after specification review.
Cooperation Process: Application Review → Temperature Range Confirmation → Resolution / Interface Confirmation → Probe Design → Cable / Connector → Drawing Approval → Sample Testing → Pilot Order → Mass Production
Q1: What digital sensor is used?
The product uses the DS18B20 1-Wire digital temperature sensor.
Q2: What is the temperature range?
-55°C to +125°C.
Q3: What is the accuracy?
±0.5°C from -10°C to +85°C and according to the supplied data: ±2°C from -55°C to +125°C.
Q4: What resolution is available?
The resolution is user-selectable from 9-bit to 12-bit.
Q5: What is the power supply?
3.0V to 5.5V.
Q6: What is the 12-bit conversion time?
Up to 750ms maximum.
Q7: Does it support alarm thresholds?
Yes. It supports programmable upper and lower alarm trigger points.
Q8: Can the housing be customized?
Yes. Housing material, size and configuration can be adjusted according to mounting requirements.
Q9: Can cable specifications be customized?
Yes. Cable insulation, gauge and length can be adapted according to requirements.
Q10: Can accessories or connectors be supplied?
Yes. Other accessories are available on request.
Q11: Can you match our existing equipment?
Yes. Please provide your probe dimensions, cable, connector, supply voltage and controller requirements.
Q12: What information is required for a quotation?
Please provide: Application + Temperature Range + Probe Size + Housing + Cable + Connector / Accessories + Quantity.
- User name Member Level Quantity Specification Purchase Date
- Satisfaction ：
-
Expert for Thermistors Temperature Sensors Humidity Sensors Level Sensors ; Reliable but flexible custom products development
100+ Sensing Solutions Developed Annually for Different Applications
80+ Countries Customers Serviced
