SHT31-ARP-B Sensirion Undefined or Miscellaneous (Small Outline No-lead) In Stock
Sensirion SHT31-ARP-B is a digital humidity and temperature sensor in a TDFN-8 package, measuring 0-100% RH with ±2% RH accuracy and temperature accuracy of ±0.3°C. It features a ratiometric analog output and operates from a 2.4V to 5.5V supply. Available from stock worldwide with fast shipping.
- Manufacturer
- Sensirion
- Package
- Small Outline No-lead
- Pin Count
- 9
- Lifecycle
- ACTIVE
- Datasheet
- SHT31-ARP-B Datasheet PDF
- Category
- Undefined or Miscellaneous
- Price
- From $2.2815(MOQ 82)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SHT31-ARP-B?
- 0-100% RH measurement range with ±2% RH typical accuracy
- ±0.3°C temperature accuracy with analog ratiometric output (ARP interface)
- Wide supply voltage range of 2.4V to 5.5V for flexible system integration
- Ultra-compact TDFN-8 package for space-constrained sensor node designs
What is SHT31-ARP-B used for?
The SHT31-ARP-B is used in HVAC systems, smart thermostats, and building automation equipment where continuous ratiometric humidity and temperature analog signals are required without a digital bus. Its ARP (analog ratiometric pulse-width modulated) output simplifies interfacing with microcontrollers that lack I2C peripherals, making it suitable for low-cost sensor nodes. It is also deployed in industrial environmental monitoring, weather stations, and medical devices requiring ±2% RH precision over the full 0-100% humidity range.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the SHT31-ARP-B datasheet?
SHT31-ARP-B Datasheet DownloadOfficial datasheet from Sensirion
What are equivalent replacements for SHT31-ARP-B?
Compatible alternatives and drop-in replacements for SHT31-ARP-B:
suggested
Frequently Asked Questions
What accuracy does the SHT31-ARP-B provide for humidity and temperature measurements?
The SHT31-ARP-B achieves ±2% RH typical accuracy over the 0-100% RH range and ±0.3°C temperature accuracy. These specifications make it suitable for precision HVAC control, indoor air quality monitoring, and medical equipment where sensor drift must remain below 3% RH over the product lifetime.
How does the ARP output of the SHT31-ARP-B interface with a microcontroller that lacks I2C?
The ratiometric analog output encodes both humidity and temperature as a duty-cycle ratio on a single pin, readable by any microcontroller GPIO with a timer or PWM-capture peripheral. No I2C or SPI bus is needed, simplifying firmware and reducing pin count requirements by at least 1 wire compared to digital interface variants.
Over what supply voltage and temperature range does the SHT31-ARP-B operate?
The SHT31-ARP-B operates from 2.4V to 5.5V supply and functions across a temperature range of -40°C to +125°C. This broad range allows use in both battery-powered 3.3V IoT nodes and industrial 5V systems exposed to high ambient temperatures up to 125°C.
What package does the SHT31-ARP-B use and how small is its PCB footprint?
The SHT31-ARP-B is housed in a TDFN-8 package measuring approximately 2.5mm × 2.5mm with a height of 0.9mm. This leadless package enables tight component placement on multi-layer boards with via-in-pad design, saving at least 30% board area compared to an equivalent SOP-8 package sensor.
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Why Buy from FindMyChip
About Sensirion
Sensirion is a leading electronic component manufacturer. FindMyChip sources Sensirion ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 82+ | $2.4670 | $202.29 |
| 106+ | $2.3742 | $251.67 |
| 132+ | $2.2815 | $301.16 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
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