INA303A2IPWR Equivalent & Substitute Parts

Part Overview

The INA303A2IPWR is an active current sense regulator IC designed for high/low-side current sensing applications. Manufactured by Texas Instruments, this Surface Mount device operates across an input voltage range of 0V to 36V and maintains functionality across the industrial temperature range of -40°C to 125°C. The part is in active production status and carries ROHS3 compliance certification. Substitute parts are identified when equivalent electrical specifications, mechanical packaging, and compliance certifications align with the original component, enabling direct replacement in circuit designs without functional degradation.

Substiute Parts

INA303A2IPWR

Texas InstrumentsIn Stock: 1344INA303A2IPWR Datasheet

Current PartRFQ

INA302A1IPWR

Texas InstrumentsIn Stock: 6272INA302A1IPWR Datasheet

Parametric EquivalentRFQ

INA302A3IPWR

Texas InstrumentsIn Stock: 1569INA302A3IPWR Datasheet

Parametric EquivalentRFQ

INA303A1IPWR

Texas InstrumentsIn Stock: 2694INA303A1IPWR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the INA303A2IPWR are qualified based on the following criteria:

Electrical Equivalence: All substitute parts maintain identical input voltage range (0V ~ 36V), operating temperature range (-40°C ~ 125°C), and current sense function with high/low-side sensing capability.

Mechanical Compatibility: All substitute parts use the 14-TSSOP package with identical physical dimensions (0.173", 4.40mm Width), ensuring PCB footprint compatibility and assembly process alignment.

Compliance & Certification: All substitute parts carry ROHS3 compliance and MSL 2 (1 Year) moisture sensitivity rating, meeting the same regulatory and environmental requirements.

Packaging Variants: Substitute parts may differ in packaging format (Tape & Reel vs. Cut Tape & Digi-Reel®), which does not affect electrical or mechanical performance but may influence procurement and handling procedures.

The following parts meet these substitution criteria: INA302A1IPWR, INA302A3IPWR, and INA303A1IPWR.

Parameter Comparison

Engineering Selection Recommendations

All qualified substitute parts maintain active production status with ROHS3 compliance and identical MSL ratings, ensuring regulatory alignment and supply chain continuity. Selection between INA302A1IPWR, INA302A3IPWR, and INA303A1IPWR should be based on packaging format availability and procurement requirements. INA302A1IPWR and INA303A1IPWR are available in Cut Tape & Digi-Reel® format, while INA302A3IPWR is supplied in Tape & Reel format. Current inventory levels are: INA303A2IPWR (1297 pcs), INA302A1IPWR (6200 pcs), INA302A3IPWR (1551 pcs), and INA303A1IPWR (2651 pcs).

Frequently Asked Questions (FAQ)

Q: Can INA302A1IPWR replace INA303A2IPWR in existing designs? A: Yes. Both parts share identical electrical specifications (0V ~ 36V input, -40°C ~ 125°C operating range), high/low-side sensing function, 14-TSSOP package dimensions, and ROHS3 compliance. The primary difference is packaging format (Cut Tape & Digi-Reel® vs. Tape & Reel), which does not affect circuit performance.

Q: What is the difference between INA302A3IPWR and INA302A1IPWR? A: Both INA302 variants are electrically and mechanically equivalent. The distinction is packaging format: INA302A3IPWR uses Tape & Reel, while INA302A1IPWR uses Cut Tape & Digi-Reel®. Selection depends on procurement and assembly workflow requirements.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All substitute parts listed carry ROHS3 compliance certification and MSL 2 (1 Year) moisture sensitivity rating, matching the original INA303A2IPWR specifications.

Q: Can packaging format affect circuit design or PCB layout? A: No. All parts use the identical 14-TSSOP package with 0.173" width and 4.40mm dimensions. PCB footprints, pin assignments, and layout requirements remain unchanged across all substitute options.

Q: Which substitute part has the highest current inventory availability? A: INA302A1IPWR has the highest inventory level at 6200 pcs, followed by INA303A1IPWR (2651 pcs) and INA302A3IPWR (1551 pcs).