component
LM4041QCEM3-1.2NO
Public Unreviewedby Ray
Texas Instruments Voltage Reference, SOT-23-3. Datasheet-verified pinout, 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
markdownLM4041QCEM3-1.2NO
Texas Instruments · Voltage Reference · SOT-23-3
LM4041QCEM3-1.2NO from Texas Instruments, in a SOT-23-3. 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 | passive | Cathode / negative terminal (-). Shunt current flows in here and the 1.225 V reference voltage is developed between this pin and the anode. Bias through a series resistor from the supply so the shunt current stays within 60 µA to 12 mA. |
| 2 | ANODE | passive | Anode / positive terminal (+). Normally tied to ground in a shunt-reference topology; forms the return for the 1.225 V reference developed across cathode-to-anode. |
| 3 | NC | unconnected | No internal connection. Must be left floating, or connected to the anode (+) pin. TI recommends tying to anode in high-EMI environments (e.g. near transformers) or where significant high-frequency switching noise is present. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-3 |
| Category | Power Management (PMIC) |
| Pins | 3 |
Ordering variants
Same part, different packaging or reel option.
LM4041QCEM3-1.2NOLM4041QCEM3-1.2NOIDBZLM4041QCEM3-1.2NOQDBZLM4041QCEM3-1.2NOIDCKLM4041QCEM3-1.2NOILPLM4041QCEM3-1.2NOILPRLM4041QCEM3-1.2NOILPE3
CAD (KiCad official)
- Symbol:
LM4041QCEM3-1.2NO - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (None pp, sha256
cd8ea9cf52a32021, retrieved 2026-08-17, 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:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).