SHT15

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SHT15

+Nomenclature

SENSOR HUMID/TEMP 5V DTL 2% SMD

  • FabricantSociété par actions sensrieu

  • Pièce fabricant #SHT15

  • En stock1949

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Spécifications

Attribut Valeur
Series SHT1
Part Status Obsolete
Sensor Type Humidity, Temperature
Humidity Range 0 ~ 100% RH
Output Type Digital
Output 12b
Accuracy ±2% RH
Response Time 8 s
Voltage - Supply 2.4V ~ 5.5V
Mounting Type Surface Mount
Operating Temperature -40°C ~ 123°C
Package 10-SMD Module
Supplier Device Package 10-LCC
Packaging Tape & Reel (TR)

Présentation

Description

The SHT15 is a high-precision digital sensor designed for measuring temperature and relative humidity. Developed by Sensirion, it combines a capacitive humidity sensor and a band-gap temperature sensor with a calibrated digital output. The sensor communicates via a 2-wire serial interface, making it easy to integrate into various applications.
Key features of the SHT15 include high accuracy, low power consumption, and long-term stability. It is capable of measuring humidity with an accuracy of ±2% RH and temperature with an accuracy of ±0.3°C. The sensor operates within a temperature range of -40°C to 123.8°C and a humidity range of 0% to 100% RH.
The SHT15 is widely used in applications such as HVAC systems, data loggers, and weather stations, where precise environmental monitoring is essential. Its compact design and digital output make it suitable for embedded systems, providing reliable and consistent performance in various conditions.

Equivalent

The SHT15 is a digital temperature and humidity sensor. Equivalent products include the DHT22 (AM2302), Si7021, HTU21D, and the HDC1080. Each of these sensors offers similar functionality for measuring temperature and humidity with digital output, though they may differ in terms of accuracy, interface, and power consumption. It’s important to check the specific requirements of your application when selecting a replacement to ensure compatibility and performance.

Features

The SHT15 is a digital sensor designed for precise measurement of temperature and humidity. Key features include:
1. Digital Output: Provides a fully calibrated digital output, making it easy to interface with microcontrollers via a 2-wire serial interface.
2. High Accuracy: Offers high accuracy for both temperature (±0.3°C) and humidity (±2% RH).
3. Low Power Consumption: Operates on low power, ideal for battery-powered applications.
4. Wide Range: Measures humidity from 0 to 100% RH and temperature from -40°C to 123.8°C.
5. Fast Response Time: Quick response to changes in humidity and temperature.
6. Compact Size: Small form factor allows for easy integration into space-constrained applications.
7. Long-term Stability: Ensures reliable performance over time.
8. Built-in Calibration: Pre-calibrated for convenience and accuracy.
9. Dew Point Calculation: Supports calculations for dew point, enhancing its utility in various applications.
10. Reliability: Robust design for dependable performance even in challenging environments.
These features make the SHT15 suitable for applications in HVAC systems, weather stations, and industrial automation, among others.

Pinout

The SHT15 is a digital temperature and humidity sensor from Sensirion. It features a 4-pin interface. The function of each pin is as follows:
1. VDD (Pin 1): This is the power supply pin. It requires a voltage typically between 2.4V and 5.5V to power the sensor.
2. GND (Pin 2): This is the ground pin and should be connected to the system ground.
3. DATA (Pin 3): This pin is used for serial data input and output. It is a bidirectional line used to transfer data between the microcontroller and the sensor.
4. SCK (Pin 4): This is the serial clock pin. It is used to synchronize the communication between the sensor and the microcontroller.
The SHT15 communicates using a proprietary 2-wire protocol, which is similar to I2C but not identical. It provides calibrated digital output for both temperature and humidity, making it suitable for precise environmental monitoring applications.

Manufacturer

The SHT15 is manufactured by Sensirion AG. Sensirion is a Swiss-based company that specializes in the development and production of sensor solutions for various applications. It is known for its expertise in environmental and flow sensors, including temperature, humidity, and gas sensors. Sensirion targets markets such as automotive, medical, consumer electronics, and industrial sectors, providing high-precision, reliable, and compact sensor products.

Application

The SHT15 is a digital sensor commonly used for measuring temperature and humidity. Its application areas include:
1. HVAC Systems: For monitoring and controlling environmental conditions.
2. Weather Stations: Providing accurate weather data.
3. Consumer Electronics: In devices like humidifiers and air purifiers.
4. Agriculture: Monitoring greenhouse conditions for optimal plant growth.
5. Industrial Automation: Ensuring environmental conditions meet process requirements.
6. Healthcare: Used in medical devices for maintaining sterile conditions.
7. Food and Beverage: Monitoring storage and processing conditions to ensure quality.
Its reliable performance and calibration make it suitable for precision measurement tasks.

Package

The SHT15 sensor typically comes in a surface-mount device (SMD) package known as the Dual Flat No-leads (DFN) package. This package is compact, allowing for easy integration into various applications, such as environmental monitoring systems and consumer electronics, where space is a constraint.

Frequently Asked Questions


Q: What is the supply voltage range for the SHT15 sensor?
A: The SHT15 operates within a supply voltage range of 2.4V to 5.5V, suitable for low-power applications.


Q: What is the accuracy level of the SHT15 humidity sensor?
A: The humidity accuracy is ±2% RH over the full 0 to 100% RH range, ensuring reliable environmental monitoring.


Q: Does the SHT15 provide digital or analog output signals?
A: It provides a digital 12-bit output, simplifying interface with microcontrollers and reducing signal noise issues.


Q: What is the typical response time for humidity measurement?
A: The humidity response time is 8 seconds, enabling rapid detection of environmental changes.


Q: Can the SHT15 be used in high-temperature environments?
A: Yes, its operating temperature range is -40°C to 123°C, making it suitable for harsh industrial conditions.


Q: What is the part status of the SHT15 according to the manufacturer?
A: The part status is marked as Obsolete. It is recommended to evaluate replacement or stock availability for new designs.


Q: What mounting type and package option does the SHT15 use?
A: It is a Surface Mount device in a 10-SMD Module (10-LCC package), ideal for compact PCB layouts.


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