ADT7461ARMZ-2REEL7 Equivalent & Substitute Parts

Part Overview

The ADT7461ARMZ-2REEL7 is a digital temperature sensor manufactured by onsemi, designed for local and remote temperature monitoring across -40°C to 120°C (local) and -55°C to 150°C (remote) operating ranges. This component features SMBus output, 8-bit resolution, and integrated programmable limits with one-shot and standby mode capabilities. The part is classified as obsolete, making equivalent substitutes necessary for new designs and ongoing production requirements.

Substiute Parts

ADT7461ARMZ-2REEL7

onsemiIn Stock: 778ADT7461ARMZ-2REEL7 Datasheet

Current PartRFQ

EMC1422-2-ACZL-TR

Microchip TechnologyIn Stock: 894EMC1422-2-ACZL-TR Datasheet

SimilarRFQ

LM86CIMM/NOPB

Texas InstrumentsIn Stock: 1752LM86CIMM/NOPB Datasheet

SimilarRFQ

LM86CIMMX/NOPB

Texas InstrumentsIn Stock: 2141LM86CIMMX/NOPB Datasheet

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LM90CIMM/NOPB

National SemiconductorIn Stock: 3407LM90CIMM/NOPB Datasheet

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LM90CIMMX/NOPB

National SemiconductorIn Stock: 4391LM90CIMMX/NOPB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ADT7461ARMZ-2REEL7 is determined by the following critical parameters:

• Output Interface: SMBus compatibility is mandatory
• Package Type: 8-MSOP or 8-TSSOP form factor required
• Mounting: Surface mount configuration
• Supply Voltage Range: Minimum 3V support required
• Sensor Configuration: Local/Remote digital temperature sensing capability
• Temperature Range Coverage: Local sensing must cover at least -40°C to 120°C; remote sensing must cover -55°C to 150°C

Substitute parts are grouped based on their ability to meet these core electrical and mechanical specifications. Parts with extended temperature ranges, higher resolution, or improved accuracy remain functionally compatible when the above parameters are satisfied.

Parameter Comparison

Engineering Selection Recommendations

EMC1422-2-ACZL-TR (Microchip Technology) is the primary substitute for new designs. This part maintains full SMBus compatibility, 8-MSOP packaging, and extends the local temperature range to -40°C ~ 125°C with enhanced remote sensing to -64°C ~ 191°C. The 11-bit resolution and ±1°C accuracy represent improvements over the original specification. Product status is active with ROHS3 compliance and unlimited moisture sensitivity rating.

LM86CIMMX/NOPB (Texas Instruments) is an active substitute suitable for applications where the local temperature range requirement does not exceed 0°C ~ 85°C. This part provides SMBus output, 8-MSOP packaging, and maintains the same accuracy specification (±3°C) as the original. ROHS3 compliance and unlimited MSL rating are confirmed.

LM90CIMMX/NOPB (National Semiconductor) is an active substitute with identical package and interface specifications. Local and remote temperature ranges are limited to 0°C ~ 85°C. Accuracy is ±4°C. This part is suitable for applications within the specified temperature envelope.

LM90CIMM/NOPB (National Semiconductor) provides equivalent electrical specifications to LM90CIMMX/NOPB with active product status. Temperature range and accuracy parameters are identical.

LM86CIMM/NOPB (Texas Instruments) is an obsolete part with specifications matching LM86CIMMX/NOPB. Active alternatives are preferred for new production.

Frequently Asked Questions (FAQ)

Q: Can EMC1422-2-ACZL-TR replace ADT7461ARMZ-2REEL7 in all applications?

A: EMC1422-2-ACZL-TR is compatible for applications requiring SMBus output and 8-MSOP packaging. The extended temperature ranges (-40°C ~ 125°C local, -64°C ~ 191°C remote) and improved accuracy (±1°C) provide enhanced performance. Supply voltage range is limited to 3V ~ 3.6V compared to the original 3V ~ 5.5V specification. Verify supply voltage compatibility in your circuit design.

Q: What is the key difference between LM86 and LM90 series substitutes?

A: Both LM86 and LM90 series parts maintain SMBus compatibility and 8-MSOP packaging. The primary difference is product status: LM86CIMMX/NOPB and LM90CIMMX/NOPB are active products, while LM86CIMM/NOPB and LM90CIMM/NOPB are obsolete or have limited availability. Electrical specifications are equivalent within their respective temperature ranges (0°C ~ 85°C local).

Q: Are there temperature range limitations with LM86 and LM90 substitutes?

A: Yes. LM86 and LM90 series parts are limited to 0°C ~ 85°C local temperature sensing, which does not cover the original ADT7461ARMZ-2REEL7 specification of -40°C ~ 120°C. These substitutes are suitable only for applications operating within 0°C ~ 85°C. For full temperature range coverage, EMC1422-2-ACZL-TR is required.

Q: Is the 8-MSOP package compatible across all listed substitutes?

A: Yes. All substitute parts use 8-MSOP or 8-TSSOP packaging with identical 0.118" (3.00mm) width specifications. PCB footprints are compatible across all listed alternatives.

Q: What compliance certifications apply to substitute parts?

A: EMC1422-2-ACZL-TR, LM86CIMMX/NOPB, and LM90CIMMX/NOPB carry ROHS3 compliance. All listed parts are REACH unaffected and classified under ECCN EAR99 with HTSUS code 8542.39.0001.