component
LM4041A12IDBZR
Public Made by Adomby adom
Texas Instruments Voltage Reference, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownLM4041A12IDBZR
Texas Instruments · Voltage Reference · SOT-23
LM4041A12IDBZR from Texas Instruments, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | Cathode | output | Reference voltage output of 1.225V nominal with tolerance ±1.2mV at 25°C accepting 45μA to 12mA shunt current with temperature coefficient ±100ppm/°C full range. |
| 2 | Anode | power_in | Ground/negative reference pin normally grounded providing the return path for cathode current. |
| 3 | NC | unconnected | No connect pin which must float or be connected to pin 2 (anode) to suppress electromagnetic interference if needed. |
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 (25°C) | -1.2 | 1.2 | mV | IZ = 100μA, 25°C | 6 | ||
| Reverse breakdown voltage tolerance (full range) | -9.2 | 9.2 | mV | IZ = 100μA, full range | 6 | ||
| Minimum cathode current | IZ,min | 45 | 75 | μA | 25°C | 6 | |
| Minimum cathode current (full range) | IZ,min | 80 | μA | full range | 6 | ||
| Average temperature coefficient of reverse breakdown voltage | αVZ | -20 | 20 | ppm/°C | IZ = 10mA, 25°C | 6 | |
| Average temperature coefficient of reverse breakdown voltage | αVZ | -15 | 15 | ppm/°C | IZ = 1mA, 25°C | 6 | |
| Average temperature coefficient of reverse breakdown voltage | αVZ | -100 | 100 | ppm/°C | IZ = 1mA, full range | 6 | |
| Reverse breakdown voltage change with cathode current change (IZ,min < IZ < 1mA) | ΔVZ/ΔIZ | 0.7 | 1.5 | mV | IZ,min < IZ < 1mA, 25°C | 6 | |
| Reverse breakdown voltage change with cathode current change (IZ,min < IZ < 1mA) | ΔVZ/ΔIZ | 2 | mV | IZ,min < IZ < 1mA, full range | 6 | ||
| Reverse breakdown voltage change with cathode current change (1mA < IZ < 12mA) | ΔVZ/ΔIZ | 4 | 6 | mV | 1mA < IZ < 12mA, 25°C | 6 | |
| Reverse breakdown voltage change with cathode current change (1mA < IZ < 12mA) | ΔVZ/ΔIZ | 8 | mV | 1mA < IZ < 12mA, full range | 6 | ||
| Reverse dynamic impedance | ZZ | 0.5 | 1.5 | Ω | IZ = 1mA, f = 120Hz, IAC = 0.1 IZ, 25°C | 6 | |
| Reverse breakdown voltage (reference voltage) | VZ | 1.225 | V | IZ = 100μA, 25°C | 6 | ||
| Wideband noise | eN | 20 | μVRMS | IZ = 100μA, 10Hz ≤ f ≤ 10kHz, 25°C | 6 | ||
| Long-term stability of reverse breakdown voltage | 120 | ppm | t = 1000 h, TA = 25°C ± 0.1°C, IZ = 100μA | 6 | |||
| Cathode current (recommended operating) | IZ | 12 | mA | 6 | |||
| Free-air temperature (LM4041 I temperature) | TA | -40 | 85 | °C | LM4041 (I temperature) | 6 | |
| Continuous cathode voltage | VZ | 15 | V | 5 | |||
| Continuous cathode current | IZ | -10 | 25 | mA | 5 | ||
| Operating virtual junction temperature | TJ | 150 | °C | 5 | |||
| Storage temperature range | Tstg | -65 | 150 | °C | 5 | ||
| Package thermal impedance, DBZ package | θJA | 206 | °C/W | DBZ package, per JESD 51-7 | 5 |
CAD (KiCad official)
- Symbol:
LM4041A12IDBZR - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
lm4041a12idbzr-etched.step/lm4041a12idbzr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm4041a12idbzr.step/lm4041a12idbzr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (39 pp, sha256
efdac4618419c087, retrieved 2026-09-23, 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 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-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).