LTC1966MPMS8 Equivalent & Substitute Parts

Part Overview

The LTC1966MPMS8 is an RMS to DC Converter integrated circuit manufactured by Analog Devices Inc., designed for power management applications. This component converts AC RMS signals to proportional DC voltage outputs, operating across a supply voltage range of 2.7V to 5.5V with a supply current of 155 µA. The device is housed in an 8-MSOP surface mount package.

The LTC1966MPMS8 carries an Obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production requirements for applications utilizing this RMS to DC conversion functionality.

Substiute Parts

LTC1966MPMS8

Analog Devices Inc.In Stock: 1178LTC1966MPMS8 Datasheet

Current PartRFQ

LTC1966MPMS8#PBF

Analog Devices Inc.In Stock: 1279LTC1966MPMS8#PBF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LTC1966MPMS8 is determined by strict alignment of the following electrical and mechanical parameters:

Critical Substitution Parameters:

• Base product number (LTC1966 series)
• Supply voltage range (2.7V ~ 5.5V)
• Supply current specification (155 µA)
• Package type (8-MSOP)
• Mounting technology (Surface Mount)
• Moisture sensitivity level (MSL 1)

Parts meeting all these criteria are classified as direct substitutes. The primary distinction between the main part and its substitute relates to product status (Obsolete versus Active) and packaging format (standard versus Tube), with no impact on electrical performance or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The LTC1966MPMS8#PBF serves as the direct substitute for the obsolete LTC1966MPMS8. Both parts are manufactured by Analog Devices Inc. and share identical electrical specifications, package dimensions, and mounting characteristics.

Product Status Consideration: The LTC1966MPMS8#PBF carries Active product status, ensuring ongoing manufacturer support, availability, and compliance with current regulatory standards. The original LTC1966MPMS8 is classified as Obsolete, indicating discontinued production and limited long-term availability.

Compliance and Certifications: The LTC1966MPMS8#PBF is RoHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements. Both parts share identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications.

Packaging Difference: The primary distinction is packaging format. The LTC1966MPMS8#PBF is supplied in Tube packaging, whereas the original part number does not specify a packaging format. This difference does not affect component functionality or PCB assembly compatibility.

Frequently Asked Questions (FAQ)

Q: Can the LTC1966MPMS8#PBF be used as a direct replacement for the LTC1966MPMS8?

A: Yes. Both parts are identical RMS to DC converters from Analog Devices Inc., sharing the same electrical specifications (2.7V to 5.5V supply voltage, 155 µA supply current), package type (8-MSOP), and mounting technology (Surface Mount). The LTC1966MPMS8#PBF is the active production equivalent.

Q: What is the significance of the #PBF suffix in the part number?

A: The #PBF suffix indicates lead-free (Pb-free) construction, compliant with RoHS3 regulations. This designation reflects current manufacturing standards and environmental compliance requirements.

Q: Are there any PCB layout or assembly differences when substituting these parts?

A: No. Both parts use identical 8-MSOP package dimensions (0.118" width, 3.00mm) and Surface Mount technology. PCB footprints, solder reflow profiles, and assembly procedures remain unchanged.

Q: Why is the LTC1966MPMS8 marked as Obsolete?

A: Obsolete status indicates the manufacturer has discontinued production of this specific part number. The LTC1966MPMS8#PBF represents the current production equivalent, incorporating modern compliance standards and manufacturing practices.

Q: What is the Moisture Sensitivity Level (MSL) and why is it important?

A: MSL 1 (Unlimited) indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. This classification simplifies inventory management and reduces storage requirements.

Q: Are both parts suitable for new design implementations?

A: The LTC1966MPMS8#PBF is recommended for new designs due to its Active product status and current compliance certifications. The LTC1966MPMS8 should be reserved for legacy system maintenance and repair applications only.