What is the Additional Feature ?

Name: SHT21
Brand: Sensirion AG
SKU: SHT21
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Sensirion AG SHT21

Part No.:: SHT21

Manufacturer:: Sensirion AG

Package:: 6-TDFN Exposed Pad

Datasheet:: SHT21.pdf

Description:: SENSOR HUMID/TEMP 3V I2C 2% SMD

In Stock:: 2809

Quantity:: Add To Cart

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SHT21 this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including SHT21 price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for SHT21 to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

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SHT21 Typical application Circuitry

SHT21

Known for its exceptional long-term stability and great dependability, the SHT21is an integrated circuit (IC) that senses temperature and humidity digitally. It is widely used in a wide range of applications, including weather stations, medical equipment, and HVAC (Heating, Ventilation, and Air Conditioning) systems, medical devices, and weather stations. Here are its key features and a detailed explanation of how to integrate it into a specific application, such as a basic weather monitoring system.

Key Features of SHT21:

- Humidity Measurement Range: The SHT21can measure relative humidity from 0 to 100% RH.

- Temperature Measurement Range: It operates over a wide temperature range, typically from -40°C to 125°C.

- Accuracy: The sensor is highly accurate, with typical humidity accuracy of ±2% RH and temperature accuracy of ±0.3°C.

- Digital Output: It provides a calibrated digital signal output in I2C format.

- Low Power Consumption: The SHT21's low power consumption makes it appropriate for battery-operated devices.

Application Scenario: Weather Monitoring System

Circuit Integration:

- Power Supply Connections: The SHT21operates with a supply voltage typically ranging from 2.1V to 3.6V. Connect the VDD pin of the SHT21to a 3.3V power supply and the GND pin to the ground.

- I2C Communication Interface: For data transmission, connect the SDA (Serial Data) and SCL (Serial Clock) pins of the SHT21to the corresponding SDA and SCL pins of a microcontroller like the Arduino.

- Pull-up Resistors: To guarantee correct I2C communication, add pull-up resistors (usually 10kΩ) to both the SDA and SCL lines.

- Programming and Data Reading: Connect the microcontroller to a computer via a USB interface for programming. Use the Arduino IDE or a similar platform for coding and retrieving data from the SHT21.

- Decoupling Capacitor: It's advisable to use a decoupling capacitor (e.g., 100nF) between VDD and GND close to the sensor to stabilize the power supply.

Design Considerations:

- Environmental Factors: Consider the operating environment, as extreme conditions may affect the sensor's accuracy.

- EMI/RFI Shielding: In electrically noisy environments, proper shielding may be necessary to ensure accurate readings.

- Physical Mounting: The sensor should be mounted in a way that allows for accurate airflow without exposing it to direct sunlight or moisture.

In designing circuits with the SHT21, these considerations are crucial for accurate and reliable operation. This sensor, with its precision and durability, is an excellent choice for applications requiring detailed environmental monitoring.

SHT21 information

SHT21 Specifications

Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
-
ProductStatus:
Active
SensorType:
Humidity, Temperature
HumidityRange:
0 ~ 100% RH
OutputType:
I²C
Output:
12b
Accuracy:
±2% RH
ResponseTime:
8 s
Sensitivity:
-
Voltage-Supply:
2.1V ~ 3.6V
MountingType:
Surface Mount
OperatingTemperature:
-40°C ~ 125°C

SHT21 FAQ

1. How to order SHT21 on icwhale.com?

Currently, icwhale.com only provide peer-to-peer order processing. While you submit the RFQ, our professional agent will contact you with the competitive prices in the global market, and our agent will prompt you to finish the order if you accept our offers.

2. How does icwhale.com guarantee that SHT21 is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the SHT21. All suppliers must pass our qualification reviews before they can publish their products including SHT21 on icwhale.com; we pay more attention to the channels and quality of SHT21 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.

3. Are the SHT21 price and inventory displayed accurate?

The price and inventory of SHT21 fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.

4. What forms of payment are accepted?

Wire Transfer, PayPal, Alipay, Wechat, Credit Card, Western Union, MoneyGram, and Escrow are all acceptable.

Warm Tips: Some orders in certain payment forms may require handling fee.

5. How is the shipping arranged?

Customers can choose industry-leading freight companies, including DHL, UPS, FedEx, TNT, and Registered Mail. Shipping insurance is also available.

Once your order has been processed for shipment, our salesperson will send you an email advising you of the shipping status and tracking number.

Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.

6. What is the process for return or replacement of SHT21?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the SHT21 we delivered, we will accept the replacement or return of the SHT21 only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of SHT21.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations