INA271AIDG4 Equivalent & Substitute Parts

Part Overview

The INA271AIDG4 is a high-side current monitor IC manufactured by Texas Instruments, designed for precision current measurement applications. This device operates across a wide input voltage range of -16V to 80V with ±1% accuracy and is housed in an 8-SOIC surface mount package. The INA271AIDG4 is currently classified as obsolete, making identification of active equivalent parts essential for new designs and production continuity.

Substiute Parts

INA271AIDG4

Texas InstrumentsIn Stock: 1155INA271AIDG4 Datasheet

Current PartRFQ

INA271AIDR

Texas InstrumentsIn Stock: 21615INA271AIDR Datasheet

MFR RecommendedRFQ

INA271AID

Texas InstrumentsIn Stock: 10286INA271AID Datasheet

MFR RecommendedRFQ

INA270AID

Texas InstrumentsIn Stock: 987INA270AID Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the INA271AIDG4 is determined by strict equivalence across the following critical parameters: function (current monitor), sensing method (high-side), accuracy (±1%), input voltage range (-16V ~ 80V), operating temperature range (-40°C ~ 125°C), package type (8-SOIC), and compliance certifications (ROHS3, REACH Unaffected). All substitute parts listed maintain identical electrical specifications and mechanical compatibility. Substitutes are grouped by product status and packaging configuration, with preference given to active parts over obsolete designations.

Parameter Comparison

Engineering Selection Recommendations

For applications currently using the obsolete INA271AIDG4, direct substitution is available through active-status equivalents INA271AIDR and INA271AID. Both parts maintain identical electrical and mechanical specifications with confirmed ROHS3 compliance and REACH unaffected status. INA271AIDR is supplied in Cut Tape and Digi-Reel packaging, while INA271AID is supplied in Tube packaging. INA270AID serves as a parametric equivalent with identical performance characteristics and active product status, differing only in base product designation. Selection between these options should be based on packaging requirements and supply chain availability.

Frequently Asked Questions (FAQ)

Q: Can INA271AIDR directly replace INA271AIDG4 in existing designs? A: Yes. INA271AIDR is electrically and mechanically identical to INA271AIDG4, with matching accuracy (±1%), input voltage range (-16V ~ 80V), operating temperature (-40°C ~ 125°C), and 8-SOIC package configuration. The primary difference is product status (active vs. obsolete) and packaging format (Cut Tape/Digi-Reel vs. standard).

Q: What is the difference between INA271AIDR and INA271AID? A: Both are active-status equivalents with identical electrical specifications. The distinction is packaging: INA271AIDR is supplied in Cut Tape and Digi-Reel format, while INA271AID is supplied in Tube format. Selection depends on assembly process requirements and inventory management preferences.

Q: Is INA270AID a suitable substitute for INA271AIDG4? A: Yes. INA270AID meets all critical substitution criteria: identical accuracy (±1%), input voltage range (-16V ~ 80V), operating temperature (-40°C ~ 125°C), package type (8-SOIC), and compliance certifications. The base product number differs (INA270 vs. INA271), but parametric equivalence is confirmed across all functional parameters.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts—INA271AIDR, INA271AID, and INA270AID—are ROHS3 compliant with Moisture Sensitivity Level 2 (1 Year), matching the compliance profile of the original INA271AIDG4.

Q: Which substitute part has the highest inventory availability? A: INA271AIDR has the highest confirmed inventory at 21,556 pieces in stock, followed by INA271AID at 10,200 pieces and INA270AID at 896 pieces.