TMCS1101A3BQDR Current Sensor Equivalent & Substitute Parts

Part Overview

The TMCS1101A3BQDR is an active Hall Effect current sensor manufactured by Texas Instruments, designed for bidirectional AC/DC current measurement applications. This surface-mount component operates within a ±11.25A sensing range and delivers ratiometric voltage output, making it suitable for power management, motor control, and energy monitoring systems. The part maintains Active product status and is available in high volume inventory (30,100 pieces). Substitute parts are identified when equivalent electrical and mechanical specifications are required due to component availability, supply chain considerations, or specific application requirements such as automotive qualification or enhanced compliance certifications.

Substiute Parts

TMCS1101A3BQDR

Texas InstrumentsIn Stock: 30155TMCS1101A3BQDR Datasheet

Current PartRFQ

TMCS1101A3BQDRQ1

Texas InstrumentsIn Stock: 2622TMCS1101A3BQDRQ1 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TMCS1101A3BQDR is determined by strict equivalence across all critical electrical and mechanical parameters. The primary substitute, TMCS1101A3BQDRQ1, maintains identical specifications for current sensing range (±11.25A), output characteristics (ratiometric voltage at 200mV/A), frequency response (80kHz), linearity (±0.05%), supply voltage requirements (3V ~ 5.5V), response time (6.5µs), operating temperature range (-40°C ~ 125°C), and physical packaging (8-SOIC with 0.154" width, 3.90mm). Both components are Hall Effect sensors with single-channel, bidirectional measurement capability and surface-mount configuration.

The substitute part differs in packaging format (Cut Tape and Digi-Reel versus standard packaging), product grade (Automotive qualification with AEC-Q100 certification), and compliance certifications (ROHS3 Compliant and REACH Unaffected status). These differences do not affect electrical or mechanical compatibility but indicate enhanced qualification for specific application environments.

Parameter Comparison

Engineering Selection Recommendations

Both the TMCS1101A3BQDR and TMCS1101A3BQDRQ1 are electrically and mechanically interchangeable for applications requiring Hall Effect current sensing at ±11.25A with ratiometric voltage output. Selection between these parts is based on application-specific requirements and compliance mandates rather than electrical performance differences.

The TMCS1101A3BQDR is suitable for general industrial and consumer applications where standard product qualification is acceptable. The TMCS1101A3BQDRQ1 is specified for automotive applications requiring AEC-Q100 qualification and explicit ROHS3 compliance certification. The automotive-grade variant (TMCS1101A3BQDRQ1) provides enhanced reliability assurance for safety-critical and regulated automotive environments.

Packaging format differences (Cut Tape and Digi-Reel for the substitute) do not affect component functionality or PCB integration. Both parts maintain identical pin configuration, electrical characteristics, and thermal performance across the full operating temperature range of -40°C to 125°C.

Frequently Asked Questions (FAQ)

Q: Are the TMCS1101A3BQDR and TMCS1101A3BQDRQ1 pin-compatible?

A: Yes. Both components use the 8-SOIC package with identical pin configuration, pitch, and electrical function. Direct PCB substitution is possible without layout modifications.

Q: What is the difference between the standard and automotive-grade versions?

A: The TMCS1101A3BQDRQ1 carries AEC-Q100 automotive qualification and explicit ROHS3 compliance certification. Electrical and mechanical specifications are identical. The automotive variant is required for applications subject to automotive industry standards and regulations.

Q: Can the TMCS1101A3BQDR be used in automotive applications?

A: The standard TMCS1101A3BQDR lacks AEC-Q100 qualification. For automotive applications requiring compliance with automotive industry standards, the TMCS1101A3BQDRQ1 is the specified part.

Q: Do these sensors require different PCB footprints?

A: No. Both parts use the 8-SOIC (0.154", 3.90mm Width) package and share identical footprint requirements. No PCB redesign is necessary when substituting between these parts.

Q: What is the significance of the packaging format difference (Cut Tape vs. standard)?

A: Packaging format affects supply chain logistics and handling procedures but does not impact component performance or electrical characteristics. Both formats contain identical die and internal construction.

Q: Are the sensitivity and linearity specifications identical?

A: Yes. Both parts deliver 200mV/A sensitivity and ±0.05% linearity. Output voltage scaling and measurement accuracy are equivalent across the full ±11.25A current range.

Q: What is the maximum operating frequency for both sensors?

A: Both sensors support 80kHz frequency response, enabling measurement of AC and DC current signals within this bandwidth limitation.

Q: Do both parts operate from the same supply voltage range?

A: Yes. Both the TMCS1101A3BQDR and TMCS1101A3BQDRQ1 require supply voltage between 3V and 5.5V, with maximum supply current of 6mA.