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SHT31-DIS-B2.5KS
SHT31-DIS-B2.5KS
| Part Number | SHT31-DIS-B2.5KS |
|---|---|
| Manufacturer | Sensirion |
| Category | Sensors, Transducers > Humidity, Moisture Sensors |
| Description | Next-generation, high-accuracy digital relative humidity and temperature sensor featuring a wide supply voltage range, advanced I2C digital interface with programmable addresses, and industry-proven CMOSens® reliability. |
| Stock Status | In Stock |
| Origin | Original Factory |
Product Overview
The SHT31-DIS-B2.5KS is a high-precision digital humidity & temperature sensor from Sensirion based on mature CMOSens® technology. It integrates humidity sensing element, temperature bandgap and digital signal processor in a tiny single chip.
With a rated supply voltage of 2.4V–5.5V (absolute minimum 2.15V), its factory-calibrated I2C interface supports up to 1MHz fast-mode plus communication and dual configurable addresses.
It delivers excellent long-term stability and low drift against harsh environments. The B2.5KS suffix means 2500pcs tape-and-reel packaging for SMT mass production, widely used in smart home, building automation, automotive cabin monitoring and medical devices.
Core Advantages
Industry-Leading Accuracy Metrics
Provides market-leading precision with a typical relative humidity accuracy of ±2% RH and a temperature accuracy of ±0.2°C, making it ideal for precision climate monitoring loops.
Advanced High-Speed I2C Interface
Features a versatile digital I2C connection supporting fast-mode plus rates up to 1 MHz alongside user-configurable hardware address pins, allowing multiple sensors to occupy the same communication bus.
Exceptional Long-Term Stability
Utilizes proprietary CMOSens® technology to protect sensitive transducer elements against premature aging, chemical vapors, and moisture saturation, guaranteeing accurate field readings over several years.
Ultra-Low System Power Requirements
Consumes an incredibly low average current during active measuring states and features automated power-saving standby modes, dramatically preserving cell capacity in battery-powered telemetry equipment.
Key Specifications
| Brand | Sensirion |
|---|---|
| RoHS Status | RoHS Compliant / Lead-Free Standard (Green Material Composition) |
| EDA/CAD Model | 3D Model & PCB Footprint Available upon request |
| Warranty | 1-Year Standard Factory Warranty |
| Package / Case | DFN-8 (2.5mm x 2.5mm x 0.9mm) |
| Mounting Type | Surface Mount Technology (SMD/SMT) |
| Surface Marking / Silkscreen | SHT31 Marking |
| Output Interface Format | Digital I2C Interface with Selectable Addressing Configuration |
| I2C Clock Speed | Up to 1 MHz Fast-mode Plus |
| Humidity Measurement Range | 0% to 100% RH Continuous Relative Humidity Range |
| Typical Humidity Accuracy | ±2% RH across full measurement range |
| Measurement Repeatability | Humidity: ±0.1%RH; Temperature: ±0.03°C |
| Response Time (τ63) | 8 sec typical for humidity sensing |
| Long-Term Drift | Less than 0.5%RH annual drift |
| Humidity Resolution | 16-bit digital output |
| Temperature Measurement Range | -40°C to +125°C Continuous Tracking Capacity |
| Typical Temperature Accuracy | ±0.2°C from 0°C to 90°C |
| Temperature Resolution | 16-bit digital output |
| Operating Supply Voltage Range | +2.4V to +5.5V Single Supply Operating Voltage Range (Absolute minimum limit 2.15V) |
| Average Current Consumption | Typical active measuring current at 2 μA (idle state drops down to 0.2 μA) |
| Storage Temperature Range | -40°C to +130°C |
| Packaging Standard | Tape and Reel (2,500 Pieces per Reel Standard) |
Typical Applications
- Smart Home Thermostats, HVAC Air Conditioning Controls, and Building Climate Management Systems
- Automotive Cabin Environmental Monitoring, Defogging Triggers, and Climate Control Assemblies
- Consumer Electronics, Portable Weather Stations, Humidifiers, and Smart Refrigerator Systems
- Industrial Warehousing Controls, Cold Chain Logistics Tracking, and Greenhouse Automation Hubs
- Medical Respiratory Ventilators, Incubator Temperature Safeguards, and Sensitive Laboratory Gear
Order & Shipping Info
| Minimum Order Quantity (MOQ) | 1 Piece |
|---|---|
| Shipping Time | Shipped within 1-2 business days |
| Delivery Time | 3-7 working days worldwide |
| Shipping Methods | DHL, UPS, FedEx, EMS |
| Payment Methods | T/T (Bank Transfer), PayPal, Credit Card, Western Union |
Technical Support
For datasheet, sample requests, stock check, or bulk pricing, please use the Quick Inquiry form. We will reply within 24 hours.
Frequently Asked Questions
Q1: Is your currently available stock of the SHT31-DIS-B2.5KS sensor 100% genuine and original?
A: Yes, we guarantee that all SHT31-DIS-B2.5KS components in our inventory are 100% brand-new, factory-original products from Sensirion. They are maintained inside humidity-regulated, anti-static environments and handled strictly following ESD safety protocols.
Q2: What do the letters and digits “B2.5KS” specify in the ordering part number?
A: The “B” designation refers to the standard packaging revision, while “2.5KS” explicitly states that the devices are shipped on a tape-and-reel spool containing exactly 2,500 pieces, ready for high-speed automated machine assembly.
Q3: Does the SHT31 sensor require manual calibration or software linearization profiles upon installation?
A: No, the SHT31-DIS-B2.5KS is fully calibrated, linearized, and temperature-compensated at the factory. It transmits complete, fully processed relative humidity and temperature data values directly over the I2C bus, allowing for immediate integration without further computational overhead.
Q4: How can our engineering development division request CAD footprint files, PCB reflow guidelines, or bulk tiered wholesale quotes?
A: Please complete our Quick Inquiry web form on this page with details about your processing parameters. Our application support desk will process your inquiry and dispatch the available technical documentation package within 24 hours.
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