INA203AIPW Equivalent & Substitute Parts

Part Overview

The INA203AIPW is a high-side current monitor IC manufactured by Texas Instruments, designed for power management applications. This device operates across an input voltage range of -16V to 80V with ±4.6% accuracy and delivers a 1mA output signal. The component is housed in a 14-TSSOP surface mount package and is classified as Last Time Buy, indicating limited availability and the necessity to identify equivalent alternatives for future procurement and design continuity.

Substiute Parts

INA203AIPW

Texas InstrumentsIn Stock: 80439INA203AIPW Datasheet

Current PartRFQ

INA205AIPW

Texas InstrumentsIn Stock: 1173INA205AIPW Datasheet

Parametric EquivalentRFQ

INA206AIPW

Texas InstrumentsIn Stock: 713INA206AIPW Datasheet

Parametric EquivalentRFQ

INA207AIPW

Texas InstrumentsIn Stock: 1095INA207AIPW Datasheet

Parametric EquivalentRFQ

INA208AIPW

Texas InstrumentsIn Stock: 718INA208AIPW Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the INA203AIPW is determined by strict equivalence across the following critical parameters:

• Sensing Method: High-Side (all substitutes match)
• Accuracy: ±4.6% (all substitutes match)
• Voltage - Input Range: -16V ~ 80V (all substitutes match)
• Current - Output: 1mA (all substitutes match)
• Operating Temperature Range: -40°C ~ 125°C (all substitutes match)
• Mounting Type: Surface Mount (all substitutes match)
• Package / Case: 14-TSSOP (0.173", 4.40mm Width) (all substitutes match)
• Compliance: ROHS3 Compliant, REACH Unaffected (all substitutes match)

All four identified substitute parts (INA205AIPW, INA206AIPW, INA207AIPW, INA208AIPW) maintain identical electrical and mechanical specifications, enabling direct functional replacement in circuit designs.

Parameter Comparison

Engineering Selection Recommendations

INA208AIPW is the primary recommended substitute. This part maintains full parametric equivalence with the INA203AIPW while offering Active product status, ensuring long-term availability and manufacturer support. The 14-TSSOP package and Tube packaging provide standard handling and assembly compatibility.

INA206AIPW serves as a secondary alternative, offering Last Time Buy status similar to the INA203AIPW with equivalent electrical and mechanical specifications. Tube packaging is available.

INA205AIPW and INA207AIPW are functionally equivalent but carry Obsolete product status, limiting their suitability for new designs or long-term procurement strategies despite current inventory availability.

All substitute parts comply with ROHS3 and REACH requirements, maintaining regulatory alignment with the original INA203AIPW specification.

Frequently Asked Questions (FAQ)

Q: Can INA208AIPW directly replace INA203AIPW in existing designs?

A: Yes. The INA208AIPW maintains identical electrical specifications (±4.6% accuracy, -16V to 80V input range, 1mA output) and mechanical packaging (14-TSSOP surface mount). No circuit modifications are required.

Q: What is the difference between Last Time Buy and Active product status?

A: Last Time Buy indicates the manufacturer will cease production after a specified date, with no future availability. Active status confirms ongoing production and long-term availability. INA208AIPW (Active) provides superior supply chain continuity compared to INA203AIPW (Last Time Buy).

Q: Are all substitute parts available in the same package?

A: All substitutes use the 14-TSSOP (0.173", 4.40mm Width) package. Packaging format (Tube vs. standard) may vary by part number but does not affect electrical or mechanical compatibility.

Q: Do substitute parts meet the same compliance standards?

A: Yes. All substitute parts are ROHS3 Compliant and REACH Unaffected, matching the INA203AIPW compliance profile.

Q: Why should I avoid INA205AIPW and INA207AIPW despite inventory availability?

A: Both parts carry Obsolete product status, indicating discontinued manufacturing. While current stock exists, future procurement becomes impossible. For new designs or long-term applications, INA208AIPW (Active) or INA206AIPW (Last Time Buy) are preferred.