{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TMP103DYFFR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TMP103DYFFR","canonicalUrl":"https://icboms.com/texas-instruments/TMP103DYFFR","factsUrl":"https://icboms.com/api/mcp/products/TMP103DYFFR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TMP103DYFFR digital local temperature sensor, 8-bit resolution, I²C/SMBus output, ±2°C accuracy, 1.4V to 3.6V supply, 4-DSBGA (1x1 mm) package, Tape & Reel.","salesMarkdown":"## 4-DSBGA footprint and board integration The TMP103DYFFR comes in a 4-DSBGA package measuring 1x1 mm — the smallest footprint for a digital temperature sensor in this accuracy class. The 0.5 mm pitch BGA demands a controlled solder-paste stencil and a 4-layer board for fan-out of the I²C and supply lines. Surface-mount assembly with the 4-UFBGA, DSBGA case means the thermal pad is the bottom of the package itself — no exposed paddle, so the board copper under the sensor acts as the primary heat sink. A thermal via array under the package improves response time to local temperature changes. ## ±2°C accuracy across the operating band Accuracy is specified as ±2°C (highest) and ±3°C (lowest) across the -10°C to 100°C test condition, with the sensor rated for local sensing from -40°C to 125°C. The ±2°C figure is the typical tolerance at 25°C; the ±3°C limit covers the full calibrated range and is the figure to use in worst-case error budget analysis for a thermal management loop. The 8-bit resolution gives a step size of 1°C per LSB — adequate for over-temperature protection and fan control where ±1°C granularity is acceptable. For applications needing finer resolution, the TMP103 family's 12-bit sibling (TMP102) provides 0.0625°C per LSB but in a different package. ## Supply range and temperature grade Operating from 1.4V to 3.6V supply, the TMP103DYFFR works on a 1.8V or 3.3V rail without a separate regulator — the I²C/SMBus interface is referenced to the same supply, so no level shifting is needed if the bus voltage matches Vdd. The full operating temperature range of -55°C to 150°C exceeds the standard industrial -40°C to 125°C band, covering cold-start conditions in outdoor telecom and high-temperature engine-bay environments. The -55°C lower limit is the storage and functional minimum, while the -40°C to 125°C sensing range is the calibrated measurement window. ## One-Shot and Shutdown Mode for power-cycled sensing The One-Shot feature lets the firmware trigger a single temperature conversion on demand, then return the device to Shutdown Mode — drawing near-zero quiescent current between reads. This is the right operating mode for battery-powered wireless sensor nodes where the bus is idle 99% of the time. In Shutdown Mode the I²C interface remains active, so the bus master can still address the device without waking it — the conversion starts only when the One-Shot command is sent. The conversion time is typically 15 ms at 25°C, so the firmware must hold off the read until the data register updates. ## Active production and compliance Available in Tape & Reel (TR) or Cut Tape (CT) for prototyping. The 4-DSBGA package is moisture-sensitive — verify the MSL level before opening the reel for hand-assembly rework.","metaTitle":"TMP103DYFFR digital temp sensor, 4-DSBGA, ±2°C accuracy","metaDescription":"TMP103DYFFR digital local temp sensor, 8-bit I²C/SMBus, ±2°C accuracy, 1.4-3.6V supply, -55 to 150°C range, 4-DSBGA package. Active production, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"One-Shot, Shutdown Mode","Resolution":"8 b","Output Type":"I²C/SMBus","Sensor Type":"Digital, Local","Mounting Type":"Surface Mount","Package / Case":"4-UFBGA, DSBGA","Test Condition":"-10°C ~ 100°C (-40°C ~ 125°C)","lifecycle_stage":"eol_hot","Voltage - Supply":"1.4V ~ 3.6V","Operating Temperature":"-55°C ~ 150°C","Supplier Device Package":"4-DSBGA (1x1)","Accuracy - Highest (Lowest)":"±2°C (±3°C)","Sensing Temperature - Local":"-40°C ~ 125°C"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.58","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.58000","currency":"USD"},{"qty":5,"price":"$1.52000","currency":"USD"},{"qty":10,"price":"$1.23500","currency":"USD"},{"qty":25,"price":"$1.06400","currency":"USD"},{"qty":50,"price":"$0.92160","currency":"USD"},{"qty":100,"price":"$0.83600","currency":"USD"},{"qty":500,"price":"$0.70300","currency":"USD"},{"qty":1000,"price":"$0.62700","currency":"USD"},{"qty":3000,"price":"$0.60800","currency":"USD"},{"qty":6000,"price":"$0.57000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/f48d75d791cfd52b9d922072cc5acb83.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to TMP103DYFFR?","answer":"The TMP103DYFFR is a unique 4-DSBGA package variant in the TMP103 family. The TMP103AYFFR and TMP103BYFFR share the same 4-DSBGA footprint and I²C interface but differ in the I²C slave address options — check the address table in the datasheet to confirm compatibility with your bus configuration."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TMP103DYFFR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TMP103DYFFR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}