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Texas Instruments TMP103CYFFR — Discrete Semiconductors

TMP103CYFFR Texas Instruments Digital Temp Sensor, ±2°C

MPNTMP103CYFFR
End of Life

Texas Instruments TMP103CYFFR digital local temperature sensor, 8-bit resolution, I²C/SMBus output, ±2°C accuracy, 4-DSBGA (1x1 mm) package, Tape & Reel.

$1.88Ref. price · indicative, final on quote
Packaging4-UFBGA, DSBGA
RoHSROHS3 Compliant
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TMP103CYFFR specifications
ParameterValue
Output typeI²C/SMBus
Sensor typeDigital, Local
MountingSurface Mount
Voltage1.4V ~ 3.6V
Operating temperature-55°C ~ 150°C
PackageTape & Reel (TR); Cut Tape (CT)
FeaturesOne-Shot, Shutdown Mode
Resolution8 b
Case4-UFBGA, DSBGA
Test condition-10°C ~ 100°C (-40°C ~ 125°C)
Accuracy - highest (Lowest)±2°C (±3°C)
Sensing temperature - local-40°C ~ 125°C

Product details

Active production, tiny footprint — what the BOM sees

The TMP103CYFFR: Housed in a 4-DSBGA package that measures just 1x1 mm (supplier device package 4-DSBGA), this sensor's footprint is about the size of a grain of sand — plan for precision placement and X-ray inspection after reflow, as the solder joints are not visually inspectable.

I²C/SMBus with one-shot — low-power duty cycling

Digital output via I²C/SMBus interface means the sensor connects directly to a microcontroller's two-wire bus without an ADC — the 8-bit resolution gives 0.5°C per LSB steps, adequate for trend monitoring and over-temperature flags. One-shot and shutdown modes let the part sleep between readings, drawing near-zero quiescent current — useful for thermal profiling in battery-operated gear where the bus is idle most of the time.

Frequently asked questions

What compliance documentation does Texas Instruments provide for TMP103CYFFR?

The part is RoHS3 compliant. TI typically provides RoHS and REACH declarations; check the product page or request a certificate of compliance with your RFQ.