TMP117 - 0.1°C High-Accuracy Digital Temp Sensor | TI
MPN: TMP117 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.85 | $2.85 |
| 10 | $2.56 | $25.60 |
| 100 | $2.28 | $228.00 |
| 500 | $2.05 | $1,025.00 |
| 1,000 | $1.85 | $1,850.00 |
Drop-in alternatives for TMP117 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
TMP116
✅ Drop-In📋 Reference alternative (not in catalog)
TMP117AIYBGR
✅ Drop-In📋 Reference alternative (not in catalog)
TMP117AIDRVR
✅ Drop-In📋 Reference alternative (not in catalog)
TMP117 Maximum Ratings & Electrical Characteristics
| Accuracy | ±0.1 °C (max) from -20 °C to 50 °C |
| Resolution | 0.0078 °C (16-bit) |
| Temperature Range | -55 °C to 150 °C |
| Interface | I2C/SMBus |
| Supply Voltage | 1.8 V to 5.5 V |
| Supply Current (Active) | 3.5 µA (typ) at 1.8 V |
| Supply Current (Shutdown) | 0.15 µA (typ) |
| EEPROM Size | 48-bit |
| Package Options | SOT-563 (DRV), WCSP-6 (YBGR) |
| I2C Addresses | 0x48 to 0x4B (configurable) |
| Alert Function | Programmable alert pin |
| NIST Traceability | Yes |
| Standards Compliance | ASTM E1112, ISO 80601 |
| RoHS | Compliant |
| Operating Temperature (Ambient) | -55 °C to 150 °C |
TMP117 Pin Configuration
| Pin 1 | VCC — Power supply (1.8V to 5.5V) |
| Pin 2 | GND — Ground |
| Pin 3 | SDA — I2C data line |
| Pin 4 | SCL — I2C clock line |
| Pin 5 | ADDR — I2C address select (0x48 or 0x49) |
| Pin 6 | ALERT — Alert output (open-drain, active low) |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
TMP117 is suitable for 6 applications: Medical Thermometers, Industrial Temperature Monitoring, Cold Chain Logistics, Wearable Health Monitors, HVAC Systems, IoT Environmental Sensors.
Medical Thermometers
The TMP117's ±0.1°C accuracy and compliance with ASTM E1112 and ISO 80601 make it ideal for electronic patient thermometers. Its low power consumption (3.5 µA) enables battery-operated devices, and the I2C interface simplifies integration with microcontrollers. The sensor's small package (SOT-563 or WCSP-6) allows compact probe designs. For skin temperature measurement, the WCSP package offers faster thermal response due to lower thermal mass.
Recommended
Industrial Temperature Monitoring
In industrial settings, the TMP117 provides reliable temperature monitoring over a wide range (-55°C to 150°C). Its high accuracy and digital output eliminate the need for calibration, reducing maintenance. The device's programmable alert pin can trigger alarms when temperatures exceed thresholds, enabling proactive equipment protection. The I2C interface allows multiple sensors to be daisy-chained on a single bus, simplifying system wiring.
Recommended
Cold Chain Logistics
The TMP117 is ideal for cold chain monitoring due to its high accuracy and low power, enabling long-term battery-powered data loggers. Its NIST-traceable calibration ensures compliance with regulatory requirements for temperature-sensitive goods. The sensor's small footprint and I2C interface allow easy integration into compact loggers. With a shutdown current of 0.15 µA, the device can operate for years on a small battery, making it perfect for shipment tracking.
Recommended
Wearable Health Monitors
The TMP117's small size (WCSP-6: 1.5mm x 1.0mm) and low power consumption make it ideal for wearable devices that monitor skin temperature. Its ±0.1°C accuracy is sufficient for detecting fever or tracking physiological changes. The I2C interface connects easily to BLE SoCs, enabling wireless data transmission. The sensor's low thermal mass in the WCSP package ensures fast response to temperature changes, crucial for real-time monitoring.
Recommended
HVAC Systems
In HVAC systems, the TMP117 provides accurate temperature sensing for climate control. Its wide supply voltage range (1.8V to 5.5V) allows direct connection to common logic rails. The programmable alert function can trigger fan or heater control, improving energy efficiency. The sensor's high accuracy ensures comfortable indoor environments, and its long-term stability reduces maintenance costs. The I2C interface enables easy integration with building automation controllers.
Recommended
IoT Environmental Sensors
The TMP117 is perfect for IoT nodes that monitor environmental temperature. Its low power consumption extends battery life, and its small package fits into compact designs. The I2C interface allows connection to a wide range of microcontrollers and wireless modules. With NIST-traceable accuracy, the sensor provides reliable data for smart agriculture, smart homes, and industrial IoT. The device's shutdown mode further reduces power, enabling energy harvesting applications.
Recommended
Recommended Products Summary
Engineering reference data for TMP117 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TMP116 | TMP117AIYBGR | STS31 |
|---|---|---|---|---|
| Package | SOT-563 (DRV) | SOT-563 (DRV) | WCSP-6 (YBGR) | DFN-8 |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Sensirion |
| Accuracy | ±0.1°C (max) -20°C to 50°C | ±0.2°C (max) | ±0.1°C (max) | ±0.1°C (typ) |
| Resolution | 16-bit (0.0078°C) | 16-bit (0.0078°C) | 16-bit (0.0078°C) | 14-bit (0.01°C) |
| Supply Voltage | 1.8V to 5.5V | 1.8V to 5.5V | 1.8V to 5.5V | 2.15V to 5.5V |
| Active Current | 3.5 µA (typ) | 3.5 µA (typ) | 3.5 µA (typ) | 0.2 µA (typ) |
| I2C Addresses | 0x48 to 0x4B | 0x48 to 0x4B | 0x48 to 0x4B | 0x4A or 0x4B |
| EEPROM | 48-bit | 48-bit | 48-bit | None |
Key Differentiators
- ±0.1°C accuracy over -20°C to 50°C (vs TMP116)
- NIST-traceable calibration (vs STS31)
- 48-bit EEPROM for configuration (vs MAX30205)
Design Notes
Place the TMP117 close to the heat source to measure temperature accurately. For skin temperature measurement, use the WCSP package for faster thermal response. Ensure proper thermal coupling by using thermal vias under the sensor. Keep capacitors within 5 mm of the sensor and pull-up resistors at least 10 mm away to minimize noise.
The TMP117 operates from 1.8V to 5.5V. Use a clean power supply to avoid noise affecting temperature readings. A 0.1 µF bypass capacitor near the VCC pin is recommended. In battery-powered designs, utilize the shutdown mode (0.15 µA) to extend battery life.
Avoid placing the sensor near heat-generating components (e.g., MCUs, power regulators) unless measuring ambient temperature. The sensor measures its own die temperature, so PCB layout significantly affects accuracy. Follow the layout guidelines in the datasheet to minimize self-heating and thermal gradients.
Compliance Information
RoHS compliant per TI product page. AEC-Q100 qualified variant available (TMP117AIDRVR).
