INA168QDBVRQ1 Equivalent & Substitute Parts

Part Overview

The INA168QDBVRQ1 is an active high-side current monitor IC manufactured by Texas Instruments, designed for precision current sensing applications across automotive and industrial systems. This device operates across a wide input voltage range of 2.7V to 60V with ±0.5% accuracy, housed in a compact SOT-23-5 surface mount package. The part maintains Active product status with full AEC-Q100 automotive qualification and ROHS3 compliance. Substitute parts are identified when equivalent electrical performance, package compatibility, and compliance certifications align with the original specification.

Substiute Parts

INA168QDBVRQ1

Texas InstrumentsIn Stock: 35451INA168QDBVRQ1 Datasheet

Current PartRFQ

INA168NA/250

Texas InstrumentsIn Stock: 3384INA168NA/250 Datasheet

Parametric EquivalentRFQ

INA168NA/3K

Texas InstrumentsIn Stock: 42113INA168NA/3K Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the INA168QDBVRQ1 are qualified based on the following criteria:

Electrical Parameters: Identical sensing method (high-side), matching accuracy specification (±0.5%), and equivalent input voltage operating range (2.7V ~ 60V).

Thermal Performance: Matching operating temperature range (-40°C ~ 125°C) ensures compatibility across automotive and industrial temperature extremes.

Package Compatibility: All substitutes use the same physical package (SC-74A, SOT-753) and supplier device package (SOT-23-5), enabling direct PCB-level replacement without layout modifications.

Compliance & Certification: All substitute parts maintain identical RoHS3 compliance status, REACH unaffected designation, and automotive-grade qualification (AEC-Q100), ensuring regulatory and quality requirements are preserved.

Base Product Alignment: All parts share the INA168 base product number, confirming functional equivalence within the Texas Instruments current monitor product family.

Parameter Comparison

Engineering Selection Recommendations

All three parts—INA168QDBVRQ1, INA168NA/250, and INA168NA/3K—are functionally equivalent for high-side current monitoring applications. Selection between these parts is determined by availability and supply chain requirements rather than electrical or mechanical differences.

INA168QDBVRQ1 is the primary specification with 35,410 units in stock, suitable for immediate deployment in production environments.

INA168NA/3K offers the highest inventory availability at 42,066 units, providing supply security for high-volume production runs.

INA168NA/250 maintains 3,320 units in stock, available for secondary sourcing or alternative supply chain pathways.

All parts maintain Active product status, ensuring long-term availability and continued manufacturer support. Each part carries full AEC-Q100 automotive qualification and ROHS3 compliance, meeting regulatory requirements for automotive and industrial applications. Direct substitution is permissible without circuit redesign or PCB layout modification.

Frequently Asked Questions (FAQ)

Q: Can INA168NA/250 or INA168NA/3K be used as direct replacements for INA168QDBVRQ1?

A: Yes. All three parts share identical electrical specifications (±0.5% accuracy, 2.7V–60V input range, high-side sensing), matching package geometry (SOT-23-5), and equivalent compliance certifications (AEC-Q100, ROHS3). Direct PCB-level substitution is supported without circuit modification.

Q: Are there differences in automotive qualification between these parts?

A: No. All three parts carry identical AEC-Q100 automotive-grade qualification, ensuring equivalent reliability and quality standards for automotive applications.

Q: What determines the choice between these substitute parts?

A: Selection is based on inventory availability and supply chain requirements. Electrical performance, thermal characteristics, and package compatibility are identical across all three parts.

Q: Do these parts require different PCB footprints?

A: No. All parts use the SC-74A (SOT-753) package with SOT-23-5 supplier device package designation, enabling identical PCB footprint and layout compatibility.

Q: Are moisture sensitivity levels equivalent?

A: Yes. All parts maintain MSL 2 (1 Year) rating, indicating identical moisture handling and storage requirements.

Q: Can these parts be mixed in the same production batch?

A: Yes. Electrical equivalence and package compatibility permit interchangeable use within the same design without performance degradation or reliability concerns.