EMC1182-1-AIA-TR Temperature Sensor Equivalent & Substitute Parts

Part Overview

The EMC1182-1-AIA-TR is a digital temperature sensor manufactured by Microchip Technology, designed for local and remote temperature monitoring applications. This device features an 8-DFN (3x3) surface mount package with SMBus output interface and supports temperature ranges from -40°C to 125°C for local sensing and -64°C to 191°C for remote sensing.

The EMC1182-1-AIA-TR is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production requirements for applications currently utilizing this component.

Substiute Parts

EMC1182-1-AIA-TR

Microchip TechnologyIn Stock: 4098EMC1182-1-AIA-TR Datasheet

Current PartRFQ

TMP461AIRUNT

Texas InstrumentsIn Stock: 866TMP461AIRUNT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the EMC1182-1-AIA-TR are identified based on the following critical parameters that determine functional compatibility:

• Sensor Type: Digital, Local/Remote temperature monitoring capability
• Local Sensing Temperature Range: -40°C ~ 125°C minimum
• Remote Sensing Temperature Range: -64°C ~ 191°C minimum
• Output Interface: SMBus protocol
• Resolution: 11-bit minimum
• Supply Voltage Compatibility: Overlapping operational voltage range
• Feature Set: One-Shot, Output Switch, Programmable Limit, Shutdown Mode, Standby Mode
• Mounting Type: Surface Mount
• Regulatory Compliance: ROHS3 Compliant

The TMP461AIRUNT from Texas Instruments meets these substitution criteria while offering enhanced specifications in certain parameters.

Parameter Comparison

Engineering Selection Recommendations

The TMP461AIRUNT is a functionally equivalent substitute for the EMC1182-1-AIA-TR based on matching core electrical specifications and feature sets. Key considerations for selection:

The TMP461AIRUNT maintains active product status with Texas Instruments, ensuring ongoing availability and supply chain support compared to the obsolete EMC1182-1-AIA-TR. Both devices are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

The TMP461AIRUNT offers an extended supply voltage range (1.7V ~ 3.6V versus 3V ~ 3.6V), providing greater flexibility in power supply design. The substitute part demonstrates improved accuracy specification at the lower end (±1.25°C versus ±2°C), representing enhanced performance in the extended temperature range.

Package differences exist between the two devices: the EMC1182-1-AIA-TR uses an 8-DFN (3x3) package while the TMP461AIRUNT uses a 10-WQFN (2x2) package. PCB layout modifications are required to accommodate the different package footprints and pin configurations.

Frequently Asked Questions (FAQ)

Q: What makes the TMP461AIRUNT a valid substitute for the EMC1182-1-AIA-TR?

A: Both devices share identical sensor type (Digital, Local/Remote), temperature sensing ranges (-40°C ~ 125°C local, -64°C ~ 191°C remote), output interface (SMBus), resolution (11-bit), and feature set (One-Shot, Output Switch, Programmable Limit, Shutdown Mode, Standby Mode). Supply voltage ranges overlap within the 3V ~ 3.6V operating window of the original part.

Q: Are there any package compatibility considerations?

A: Yes. The EMC1182-1-AIA-TR uses an 8-DFN (3x3) package while the TMP461AIRUNT uses a 10-WQFN (2x2) package. These are different footprints requiring PCB redesign. Pin-to-pin functional mapping must be verified against device datasheets before implementation.

Q: How do the accuracy specifications compare?

A: The EMC1182-1-AIA-TR specifies ±1°C accuracy in the -5°C ~ 100°C range and ±2°C in the -40°C ~ 125°C range. The TMP461AIRUNT specifies ±1°C accuracy in the -10°C ~ 100°C range and ±1.25°C in the -40°C ~ 125°C range. The substitute part provides improved accuracy across the extended temperature range.

Q: What is the supply voltage difference between these parts?

A: The EMC1182-1-AIA-TR operates at 3V ~ 3.6V. The TMP461AIRUNT operates at 1.7V ~ 3.6V. The substitute part supports lower supply voltages, offering design flexibility for applications with reduced power budgets.

Q: Why is the EMC1182-1-AIA-TR classified as obsolete?

A: Microchip Technology has discontinued this product line. The TMP461AIRUNT from Texas Instruments represents an active alternative with equivalent functionality and enhanced specifications.

Q: Are both parts ROHS3 compliant?

A: Yes. Both the EMC1182-1-AIA-TR and TMP461AIRUNT are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.