ADT7481ARMZ Temperature Sensor - Equivalent & Substitute Parts

Part Overview

The ADT7481ARMZ is a digital temperature sensor designed for local and remote temperature monitoring applications. It provides dual-channel temperature sensing with SMBus output interface, operating across a supply voltage range of 3V to 3.6V. The device is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design support and component procurement.

Substiute Parts

ADT7481ARMZ

onsemiIn Stock: 2858ADT7481ARMZ Datasheet

Current PartRFQ

ADT7481ARMZ-REEL

onsemiIn Stock: 9128ADT7481ARMZ-REEL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the ADT7481ARMZ is determined by strict equivalence across the following critical parameters:

• Sensor Type: Digital, Local/Remote dual-channel configuration
• Local Temperature Range: 0°C ~ 127°C
• Remote Temperature Range: -64°C ~ 191°C
• Output Interface: SMBus protocol
• Supply Voltage: 3V ~ 3.6V
• Accuracy Specifications: ±1°C (0°C ~ 70°C) and ±2.5°C (-40°C ~ 100°C)
• Operating Temperature Range: -40°C ~ 120°C
• Package Type: 10-MSOP surface mount
• Functional Features: One-Shot, Output Switch, Programmable Limit, Standby Mode

The ADT7481ARMZ-REEL is a direct substitute, sharing identical electrical specifications and package configuration. The primary distinction is packaging format and product status.

Parameter Comparison

Engineering Selection Recommendations

The ADT7481ARMZ-REEL is the direct functional equivalent for the obsolete ADT7481ARMZ. Both components share identical electrical characteristics, temperature sensing ranges, SMBus interface protocol, and 10-MSOP package configuration.

The ADT7481ARMZ-REEL offers the advantage of active product status, ensuring continued manufacturer support and availability. Additionally, the ADT7481ARMZ-REEL carries ROHS3 compliance certification, meeting current environmental and regulatory requirements for component procurement.

The distinction between the two part numbers is packaging format: the ADT7481ARMZ-REEL is supplied in Cut Tape and Digi-Reel format, whereas the original ADT7481ARMZ uses standard packaging. This difference does not affect electrical performance or functional compatibility.

Frequently Asked Questions (FAQ)

Q: Can ADT7481ARMZ-REEL be used as a direct replacement for ADT7481ARMZ?

A: Yes. Both components are electrically and functionally identical. They share the same sensor type, temperature ranges, SMBus output interface, supply voltage requirements, accuracy specifications, and 10-MSOP package configuration. The only difference is packaging format and product status.

Q: What is the significance of the product status difference?

A: The ADT7481ARMZ is classified as obsolete, indicating discontinued manufacturing and limited availability. The ADT7481ARMZ-REEL maintains active status, ensuring ongoing production, manufacturer support, and reliable procurement channels.

Q: Does the packaging format affect circuit board integration?

A: No. Both part numbers use the same 10-MSOP surface mount package with identical pin configuration and mechanical dimensions (0.118", 3.00mm Width). The packaging format difference (Cut Tape & Digi-Reel versus standard) relates only to supply method and does not impact PCB layout or soldering procedures.

Q: Are there compliance differences between the two parts?

A: The ADT7481ARMZ-REEL carries ROHS3 compliance certification. Both components share identical Moisture Sensitivity Level (MSL 1 - Unlimited), REACH status (REACH Unaffected), and ECCN classification (EAR99).

Q: What are the critical parameters for substitution compatibility?

A: Substitution compatibility is determined by: dual-channel digital temperature sensing (local and remote), local range 0°C ~ 127°C, remote range -64°C ~ 191°C, SMBus interface, 3V ~ 3.6V supply voltage, ±1°C accuracy (0°C ~ 70°C), ±2.5°C accuracy (-40°C ~ 100°C), -40°C ~ 120°C operating range, and 10-MSOP package configuration.