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Texas Instruments INA199B2QDCKRQ1 — Signal Isolation
Texas Instruments

INA199B2QDCKRQ1 Current Sense Amplifier, AEC-Q100, SC-70-6

MPNINA199B2QDCKRQ1
End of Life

Texas Instruments INA199B2QDCKRQ1, Automotive AEC-Q100 Zero-Drift Current Sense Amplifier, ±1.5% accuracy, -0.1V to 26V input, SC-70-6 package, -40°C to 125°C.

$0.75Ref. price · indicative, final on quote
INA199B2QDCKRQ1 datasheet
Packaging6-TSSOP, SC-88, SOT-363
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

INA199B2QDCKRQ1 Technical Specifications
ParameterValue
SeriesAutomotive, AEC-Q100, Zero-Drift
Mounting typeSurface Mount
Voltage - input-0.1V ~ 26V
Operating temperature-40°C ~ 125°C
PackageTape & Reel (TR); Cut Tape (CT)
Accuracy±1.5%
FunctionCurrent Sense
Case6-TSSOP, SC-88, SOT-363
Sensing methodHigh/Low-Side

Product details

Automotive current-sense amplifier in a small SC-70-6

The Texas Instruments INA199B2QDCKRQ1 is a zero-drift current-sense amplifier rated for automotive environments. It monitors current on the high or low side of the supply rail, converting the voltage across an external shunt resistor into a ground-referenced output. The ±1.5% accuracy over the -40°C to 125°C temperature range keeps the measurement within budget for battery monitoring, motor-phase current sensing, and solenoid diagnostics in engine control units or body controllers.

Package and assembly

Housed in a 6-pin SC-70-6 (also known as SOT-363), the part is surface-mount. The supplier device package is SC-70-6.

Frequently asked questions

Is INA199B2QDCKRQ1 AEC-Q100 qualified?

Yes, the INA199B2QDCKRQ1 is part of the Automotive, AEC-Q100 series, meaning it is qualified for automotive-grade applications including under-hood and chassis-domain electronics.

What is the accuracy of INA199B2QDCKRQ1?

The accuracy is ±1.5% over the full -40°C to 125°C temperature range, which sets the system calibration budget for shunt resistor selection and ADC scaling.

What are alternatives to INA199B2QDCKRQ1?

The TPS26610DDFR and TPS26621DRCR are also automotive-grade current-sense or eFuse devices from TI, but they are not pin-compatible replacements — the TPS26610 is a current regulator in a different package, and the TPS26621 is an electronic fuse with 5% accuracy. For a direct functional equivalent, stay within the INA199 family for the same pinout and accuracy tier.