component

LM4040D41IDBZT

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Texas Instruments Voltage Reference, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)lm4040d41idbztfactory-2.0.0extractor-text

Verified LM4040D41IDBZT

by Ray · last 5 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

5 Nov 2026RayPublished by the parts factory: tier mfr, 3 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: LM4040D41IDBZT · SOT-23 · 3 pins
  • ✓copper: 3 copper pads, none touching another net
  • ✓datasheet: all 3 pin names found in the 62-page datasheet
  • ✓distributor: lcsc C2877903, digikey 296-32122-2-ND, mouser 595-LM4040D41IDBZT
  • ✓family: SOT-23
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-hda45fmz/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 3 pins = 3 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 3 pins agree
  • ✓symbol_text: no pin names collide
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ lm4040d41idbzt.kicad_sym✓ lm4040d41idbzt.kicad_mod✓ lm4040d41idbzt.step
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3D Model

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Symbol & Footprint

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Contents

README

markdown

LM4040D41IDBZT

Texas Instruments · Voltage Reference · SOT-23

LM4040D41IDBZT from Texas Instruments, in a SOT-23. 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 CATHODE bidirectional Shunt current/voltage input with continuous cathode current limited to -10 mA to 25 mA absolute maximum and 15 mA maximum recommended.
2 ANODE power_in Common pin normally connected to ground, and it forms a parasitic Schottky diode with pin 3 on the SOT-23 package.
3 * input Must float or connect to the anode, and TI recommends connecting it to the anode in high-EMI or high-frequency switching noise environments.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-23
Category Power Management (PMIC)
Pins 3

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Reverse breakdown voltage tolerance ΔVZ -41 41 mV IZ = 100μA, 25°C 16
Reverse breakdown voltage tolerance ΔVZ -81 81 mV IZ = 100μA, full range TA = -40°C to 85°C 16
Average temperature coefficient of reverse breakdown voltage αVZ -30 30 ppm/°C IZ = 10mA, 25°C 16
Average temperature coefficient of reverse breakdown voltage αVZ -20 20 ppm/°C IZ = 1mA, 25°C 16
Average temperature coefficient of reverse breakdown voltage αVZ -150 150 ppm/°C IZ = 1mA, full range 16
Reverse breakdown voltage change with cathode current change VZ 0.5 1.2 mV IZ,min < IZ < 1mA, 25°C 16
Reverse breakdown voltage change with cathode current change VZ 1.5 mV IZ,min < IZ < 1mA, full range 16
Reverse breakdown voltage change with cathode current change VZ 3 9 mV 1mA < IZ < 15mA, 25°C 16
Reverse breakdown voltage change with cathode current change VZ 13 mV 1mA < IZ < 15mA, full range 16
Reverse dynamic impedance ZZ 0.5 1.3 Ω IZ = 1mA, f = 120Hz, IAC = 0.1 IZ, 25°C 16
Minimum cathode current IZ,min 50 83 μA 25°C 16
Minimum cathode current IZ,min 88 μA full range 16
Reverse breakdown voltage VZ 4.096 V IZ = 100μA, 25°C 16
Wideband noise eN 80 μVRMS IZ = 100μA, 10Hz ≤ f ≤ 10kHz, 25°C 16
Long-term stability of reverse breakdown voltage 120 ppm t = 1000 h, TA = 25°C ± 0.1°C, IZ = 100μA 16
Thermal hysteresis VHYST 0.08 % ΔTA = -40°C to 125°C 16
Continuous cathode current IZ -10 25 mA 5
Operating virtual junction temperature TJ 150 °C 5
Storage temperature range Tstg -65 150 °C 5
Cathode current IZ 15 mA 5
Free-air temperature (LM4040xxxI) TA -40 85 °C LM4040xxxI 5
Junction-to-ambient thermal resistance (DBZ, 3 pins) RθJA 206 °C/W DBZ 3-pin SOT-23 5

CAD (KiCad official)

  • Symbol: LM4040D41IDBZT
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: lm4040d41idbzt-etched.step / lm4040d41idbzt-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm4040d41idbzt.step / lm4040d41idbzt.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (62 pp, sha256 f43b6b6d3ecd51c8, retrieved 2026-11-05, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (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