LTC1966MPMS8#TR RMS to DC Converter Equivalent & Substitute Parts

Part Overview

The LTC1966MPMS8#TR is an RMS to DC converter integrated circuit manufactured by Analog Devices Inc., designed for power management applications. This device 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 component is housed in an 8-MSOP surface mount package.

The LTC1966MPMS8#TR currently holds an Obsolete product status. Locating equivalent or substitute components becomes necessary when the original part reaches end-of-life, inventory depletion, or when design requirements mandate active product status for long-term supply chain reliability and manufacturer support.

Substiute Parts

LTC1966MPMS8#TR

Analog Devices Inc.In Stock: 1011LTC1966MPMS8#TR Datasheet

Current PartRFQ

LTC1966MPMS8#TRPBF

Analog Devices Inc.In Stock: 6961LTC1966MPMS8#TRPBF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LTC1966MPMS8#TR is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Parameters:

• Supply voltage range: 2.7V to 5.5V (must match exactly)
• Supply current: 155 µA (must match exactly)
• Functional classification: RMS to DC converter

Mechanical Compatibility Parameters:

• Package type: 8-MSOP (8-TSSOP) with 0.118" width and 3.00mm pitch
• Mounting type: Surface mount
• Pin configuration: 8-pin

Manufacturing and Compliance Parameters:

• Base product number: LTC1966
• Manufacturer: Analog Devices Inc.
• Moisture sensitivity level: MSL 1 (Unlimited)

Substitute parts must maintain identical electrical performance, mechanical form factor, and functional operation. The primary distinction between the main part and its substitute relates to product status and compliance certifications, not electrical or mechanical characteristics.

Parameter Comparison

Engineering Selection Recommendations

LTC1966MPMS8#TRPBF is the direct substitute for LTC1966MPMS8#TR based on the following engineering criteria:

Electrical and Mechanical Equivalence: All electrical parameters, including supply voltage range (2.7V to 5.5V) and supply current (155 µA), are identical. The mechanical package specification (8-MSOP, 0.118" width, 3.00mm pitch) and mounting type (surface mount) are identical, ensuring direct PCB compatibility without layout modifications.

Product Status and Supply Chain: The substitute part LTC1966MPMS8#TRPBF maintains Active product status with Analog Devices Inc., providing ongoing manufacturer support, availability, and supply chain continuity. The original part LTC1966MPMS8#TR is classified as Obsolete, indicating discontinued production and limited future availability.

Compliance and Certification: The substitute part carries ROHS3 compliance and REACH Unaffected status, meeting current regulatory requirements for electronic components in regulated markets. Both parts share identical ECCN classification (EAR99) and moisture sensitivity level (MSL 1, Unlimited).

Functional Interchangeability: Both parts are manufactured by Analog Devices Inc. under the same base product number (LTC1966) and perform identical RMS to DC conversion functions. No functional differences exist between the two parts.

Frequently Asked Questions (FAQ)

Q: Can LTC1966MPMS8#TRPBF be used as a direct replacement for LTC1966MPMS8#TR?

A: Yes. The LTC1966MPMS8#TRPBF is a direct substitute. Both parts share identical electrical specifications (2.7V to 5.5V supply voltage, 155 µA supply current), mechanical packaging (8-MSOP, 0.118" width, 3.00mm pitch), and functional operation. No circuit modifications or PCB layout changes are required.

Q: What is the difference between the two part numbers?

A: The primary difference is product status. LTC1966MPMS8#TR is Obsolete, while LTC1966MPMS8#TRPBF is Active. The suffix "PBF" in the substitute part number indicates ROHS3 compliance and REACH Unaffected status. Electrically and mechanically, the parts are identical.

Q: Are there any package or pinout differences?

A: No. Both parts use the 8-MSOP (8-TSSOP) package with identical dimensions (0.118" width, 3.00mm pitch) and identical pin configurations. Direct PCB footprint compatibility is confirmed.

Q: What is the supply voltage operating range for both parts?

A: Both the LTC1966MPMS8#TR and LTC1966MPMS8#TRPBF operate across a supply voltage range of 2.7V to 5.5V with a supply current of 155 µA.

Q: Does the substitute part meet current regulatory requirements?

A: Yes. The LTC1966MPMS8#TRPBF is ROHS3 compliant and REACH Unaffected, meeting current regulatory standards for electronic components. Both parts share identical ECCN classification (EAR99).

Q: What is the moisture sensitivity level for these components?

A: Both parts are classified as MSL 1 (Unlimited), indicating the lowest moisture sensitivity level with unlimited shelf life under standard storage conditions.

Q: Why should I transition from the Obsolete part to the Active substitute?

A: The Obsolete part (LTC1966MPMS8#TR) has reached end-of-life status with discontinued production. Transitioning to the Active substitute (LTC1966MPMS8#TRPBF) ensures long-term supply chain reliability, ongoing manufacturer support, and access to current inventory. The substitute part is functionally and mechanically identical, requiring no design changes.