
Texas Instruments
A pin-compatible variant from the same family with very similar performance; minor internal differences noted.
The INA199A1DCKR is a versatile current shunt monitor from Texas Instruments. This page provides a comprehensive review of potential substitutes, including pin-compatible options, functional alternatives with different gains, and upgrade paths for higher precision or automotiv...
The SC70-6 package is standard, and multiple candidates match the form factor and pinout.
While key parameters like gain and voltage match on several parts, secondary specs like bandwidth (NCS199) or input filtering (INA199B) differ and require review.
Multiple strong alternatives exist from different major manufacturers, mitigating sourcing risk.
Direct replacement for INA199A1DCKR should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Start with Datasheet verified or Strong match candidates for INA199A1DCKR, then review parametric alternatives for package and electrical fit.
The main risk when substituting is a mismatch in a secondary parameter like bandwidth or transient response, which can affect system stability or accuracy.

Texas Instruments
A pin-compatible variant from the same family with very similar performance; minor internal differences noted.
| Feature / factor | INA199A1DCKR | INA199B1DCKR | INA199A2DCKR | INA199A3DCKR | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SC70-6 | SC70-6 | SC70-6 | SC70-6 | SC70-6 — Package matches.; INA199A2DCKR: Package matches.; INA199A3DCKR: Package matches.; TSC213ICT: Package matches. |
| Gain | 50 V/V | 50 V/V | 100 V/V | 200 V/V | 50 V/V / 100 V/V / 200 V/V — Gain matches.; INA199A2DCKR: Gain is 2x target, requires circuit adjustment.; INA199A3DCKR: Gain is 4x target, requires circuit adjustment.; TSC213ICT: Gain matches. |
| Offset Voltage | ±150 µV | ±150 µV (Max) | - | - | ±150 µV (Max) / ±100 µV — Offset voltage matches.; TSC213ICT: Tighter offset voltage is an improvement. |
| Architecture | A-version input filter | Different input filter | - | - | Different input filter — B-version has different input filter, may affect transient response. |
| Voltage | -0.3V to 26V | - | -0.3 V to 26 V | -0.3V to 26V | -0.3 V to 26 V / -0.3V to 26V / 2.7 V to 26 V — Supply and common-mode voltage ranges match.; INA199A3DCKR: Supply and common-mode voltage ranges match.; TSC213ICT: Supply and common-mode voltage ranges match. |
Verified drop-in options for INA199A1DCKR are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.