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Contents

README

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TMP303DDRLR

Texas Instruments · Thermostat Switches · SOT-563

TMP303DDRLR from Texas Instruments, in a SOT-563. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 HYSTSET0 input Digital input pin used to set thermal hysteresis; configure with HYSTSET1 to set 1°C, 2°C, 5°C, or 10°C hysteresis window.
2 GND power_in Ground reference.
3 OUT output Active high push-pull digital output pin that goes high when measured temperature exceeds trip point; does not require pullup resistor; output voltage VOH minimum (VS - 0.4) V at IOH = 0.5 mA.
4 SOH input Set output high input pin with 100 kΩ internal pulldown resistor; when pulled high forces OUT pin high regardless of temperature.
5 VS power_in Power supply positive voltage; operating range 1.4 V to 3.6 V.
6 HYSTSET1 input Digital input pin used to set thermal hysteresis; configure with HYSTSET0 to set 1°C, 2°C, 5°C, or 10°C hysteresis window.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-563
Category Sensors
Pins 6

CAD (KiCad official)

  • Symbol: TMP303DDRLR
  • Footprint: Package_TO_SOT_SMD:SOT-563
  • 3D model: SOT-563 (KiCad packages3D, STEP)
  • 3D model files: tmp303ddrlr-etched.step / tmp303ddrlr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tmp303ddrlr.step / tmp303ddrlr.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (25 pp, sha256 49900406e93c9481, retrieved 2026-10-03, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF