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Texas Instruments LM4041D12IDCKR — Analog & Data Acquisition

LM4041D12IDCKR Shunt Voltage Reference, 1.225 V Fixed, ±1%

MPNLM4041D12IDCKR
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Texas Instruments LM4041D12IDCKR, shunt voltage reference, fixed 1.225 V output, ±1% tolerance, 150 ppm/°C, 12 mA output, SC-70-5, -40°C to 85°C.

$0.8300Ref. price · indicative, final on quote
Texas Instruments LM4041D12IDCKR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM4041D12IDCKR specifications
ParameterValue
Output typeFixed
MountingSurface Mount
Reference typeShunt
Voltage - output (Min (Fixed))1.225V
Output current12 mA
Current - cathode80 µA
Operating temperature-40°C~85°C(TA)
PackageTape & Reel (TR); Cut Tape (CT)
Tolerance±1%
Case5-TSSOP, SC-70-5, SOT-353
Noise - 10Hz to 10kHz20µVrms
Temperature coefficient150ppm/°C

Product details

Fixed 1.225 V shunt reference in SC-70-5

It is designed for low-power bias and reference applications where a precision bandgap is not required — the 150 ppm/°C temperature coefficient places it in the cost-optimized tier, not the sub-10 ppm precision class. The SC-70-5 package (also listed as 5-TSSOP / SOT-353) saves board area in space-constrained designs.

12 mA output and 80 µA cathode current

The reference can source up to 12 mA of output current, which is enough to bias a single ADC reference input or a comparator threshold divider.

Noise floor and temperature drift

Wideband noise is specified at 20 µVrms over a 10 Hz to 10 kHz bandwidth — low enough for a 10-bit ADC reference but not for a 16-bit precision chain without averaging.

Frequently asked questions

What are equivalent or replacement parts for LM4041D12IDCKR?

Within the LM4041 family, the same SC-70-5 footprint is shared across tolerance grades (A/B/C/D). The LM4041D12IDCKR is the ±1% grade; a tighter ±0.5% grade (LM4041A12IDCKR) or a looser ±2% grade (LM4041C12IDCKR) are pin-compatible alternatives if the accuracy budget changes.