INA201AIDR Equivalent & Substitute Parts

Part Overview

The INA201AIDR is an active high-side current monitor IC manufactured by Texas Instruments, designed for power management applications. This 8-SOIC surface mount device delivers ±4.6% measurement accuracy across an input voltage range of -16V to 80V and operates reliably from -40°C to 125°C. The part maintains Active product status and is RoHS3 compliant with MSL 2 rating. Substitute parts are identified when equivalent electrical performance, package compatibility, and compliance certifications align with application requirements.

Key Parameters

Parameter	Value
Manufacturer	Texas Instruments
Function	Current Monitor
Sensing Method	High-Side
Accuracy	±4.6%
Voltage - Input Range	-16V ~ 80V
Operating Temperature	-40°C ~ 125°C
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Product Status	Active
RoHS Status	ROHS3 Compliant
MSL Rating	2 (1 Year)

Substitute Part Grouping Explanation

Substitution eligibility for the INA201AIDR is determined by strict alignment of the following parameters: high-side current sensing function, ±4.6% measurement accuracy, -16V to 80V input voltage range, 8-SOIC package geometry, surface mount configuration, -40°C to 125°C operating temperature, Active product status, and RoHS3 compliance.

Substitute parts are grouped into two categories:

Direct Parametric Equivalents (±4.6% Accuracy): INA200AIDR and INA202AIDR maintain identical electrical specifications and accuracy performance as the INA201AIDR, differing only in base product designation and inventory availability.

Enhanced Accuracy Alternatives (±1% Accuracy): INA270AIDR, INA271AIDR, and INA271AQDRQ1 provide superior measurement accuracy at ±1% while preserving all other critical parameters including voltage range, temperature range, package type, and compliance certifications. These parts are suitable for applications requiring tighter tolerance performance.

Parameter Comparison

Part Number	Manufacturer	Accuracy	Voltage Range	Temperature Range	Package	Sensing Method	Product Status	RoHS Status	Inventory (Pcs)
INA201AIDR	Texas Instruments	±4.6%	-16V ~ 80V	-40°C ~ 125°C	8-SOIC	High-Side	Active	ROHS3	1,185
INA200AIDR	Texas Instruments	±4.6%	-16V ~ 80V	-40°C ~ 125°C	8-SOIC	High-Side	Active	ROHS3	65,880
INA202AIDR	Texas Instruments	±4.6%	-16V ~ 80V	-40°C ~ 125°C	8-SOIC	High-Side	Active	ROHS3	1,434
INA270AIDR	Texas Instruments	±1%	-16V ~ 80V	-40°C ~ 125°C	8-SOIC	High-Side	Active	ROHS3	8,581
INA271AIDR	Texas Instruments	±1%	-16V ~ 80V	-40°C ~ 125°C	8-SOIC	High-Side	Active	ROHS3	21,556
INA271AQDRQ1	Texas Instruments	±1%	-16V ~ 80V	-40°C ~ 125°C	8-SOIC	High-Side	Active	ROHS3	1,300

Engineering Selection Recommendations

All listed substitute parts maintain Active product status and ROHS3 compliance, ensuring long-term availability and regulatory alignment with current manufacturing standards. Selection between direct parametric equivalents and enhanced accuracy alternatives depends on application tolerance requirements.

For applications where ±4.6% accuracy satisfies measurement specifications, INA200AIDR and INA202AIDR provide direct substitution. INA200AIDR offers significantly higher inventory availability (65,880 units), supporting high-volume production schedules.

For applications requiring improved measurement precision, INA270AIDR, INA271AIDR, and INA271AQDRQ1 deliver ±1% accuracy while maintaining identical voltage, temperature, and package specifications. INA271AIDR provides the highest inventory level (21,556 units) among the enhanced accuracy options.

All parts are supplied in 8-SOIC surface mount packages with identical 0.154" width and 3.90mm dimensions, ensuring direct PCB layout compatibility without redesign.

Frequently Asked Questions (FAQ)

Q: Can INA200AIDR, INA202AIDR, INA270AIDR, INA271AIDR, and INA271AQDRQ1 be used as direct replacements for INA201AIDR?

A: Yes, all listed parts are pin-compatible and functionally equivalent within their specified accuracy classes. INA200AIDR and INA202AIDR maintain identical ±4.6% accuracy. INA270AIDR, INA271AIDR, and INA271AQDRQ1 provide superior ±1% accuracy. All share the same 8-SOIC package geometry, voltage range, temperature range, and compliance certifications.

Q: What is the difference between ±4.6% and ±1% accuracy options?

A: Accuracy specification defines the maximum measurement error across the operating range. ±4.6% accuracy (INA201AIDR, INA200AIDR, INA202AIDR) is suitable for general power monitoring applications. ±1% accuracy (INA270AIDR, INA271AIDR, INA271AQDRQ1) is required for precision current measurement, battery management systems, and applications with tight tolerance requirements.

Q: Are packaging options interchangeable between substitute parts?

A: All substitute parts are supplied in 8-SOIC surface mount packages with identical dimensions (0.154" width, 3.90mm). Packaging format variations (Cut Tape, Digi-Reel, Tape & Reel) do not affect electrical performance or PCB compatibility; they reflect distribution and handling methods only.

Q: Which substitute part offers the best inventory availability?

A: INA200AIDR provides the highest inventory level at 65,880 units, followed by INA271AIDR at 21,556 units. Both are suitable for high-volume production requirements.

Q: Do all substitute parts meet the same compliance and regulatory standards?

A: Yes, all listed parts are RoHS3 compliant, REACH unaffected, and carry MSL 2 (1 Year) moisture sensitivity ratings. All maintain Active product status with Texas Instruments.

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