CS5461A-ISZ Equivalent & Substitute Parts

Part Overview

The CS5461A-ISZ is a single-phase energy metering IC manufactured by Cirrus Logic Inc., designed for power management applications requiring accurate energy measurement in single-phase systems. This device is classified as obsolete, which necessitates identification of functionally equivalent alternatives for new designs or component replacement in existing applications. The part is housed in a 24-SSOP surface mount package and delivers measurement accuracy of 0.1% with supply voltage operation between 4.75V and 5.25V.

Substiute Parts

CS5461A-ISZ

Cirrus Logic Inc.In Stock: 1830CS5461A-ISZ Datasheet

Current PartRFQ

CS5461AK-ISZ

Cirrus Logic Inc.In Stock: 1412CS5461AK-ISZ Datasheet

MFR RecommendedRFQ

CS5463K-ISZ

Cirrus Logic Inc.In Stock: 1283CS5463K-ISZ Datasheet

MFR RecommendedRFQ

CS5463K-ISZR

Cirrus Logic Inc.In Stock: 2866CS5463K-ISZR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CS5461A-ISZ is determined by strict alignment of the following critical parameters:

• Meter Type: Single Phase (all substitutes maintain this specification)
• Package / Case: 24-SSOP (0.209", 5.30mm Width) (all substitutes use identical package)
• Measurement Error: 0.1% (all substitutes maintain this accuracy specification)
• Input Impedance: 30kOhm (all substitutes maintain this specification)
• Current - Supply: 2.9mA (all substitutes maintain this specification)
• Operating Temperature: -40°C ~ 85°C (all substitutes maintain this range)
• Mounting Type: Surface Mount (all substitutes maintain this specification)
• RoHS Status: ROHS3 Compliant (all substitutes maintain compliance)
• Moisture Sensitivity Level (MSL): 3 (168 Hours) (all substitutes maintain this specification)

The identified substitutes are functionally equivalent within the constraints of single-phase energy metering applications. Variations in supply voltage range and I/O voltage thresholds do not preclude substitution when system design accommodates the specified operating parameters.

Parameter Comparison

Engineering Selection Recommendations

CS5461AK-ISZ: This part maintains obsolete product status identical to the CS5461A-ISZ while offering expanded supply voltage range (3.135V ~ 5.25V). It is ROHS3 compliant and suitable for direct substitution in applications where the lower supply voltage floor is compatible with system design. Packaging is supplied in Tube format.

CS5463K-ISZ: This part represents an active product alternative with identical electrical specifications to CS5461AK-ISZ, including expanded supply voltage range (3.135V ~ 5.25V). Active product status ensures continued availability and manufacturing support. Packaging is supplied in Tube format. This part is preferred for new designs requiring long-term component availability.

CS5463K-ISZR: This part is functionally equivalent to CS5463K-ISZ with identical electrical specifications and active product status. The primary distinction is packaging format, supplied in Tape & Reel (TR) configuration suitable for high-volume automated assembly operations. Inventory availability is 2811 pieces.

Frequently Asked Questions (FAQ)

Q: Can CS5463K-ISZ or CS5463K-ISZR be used as direct replacements for CS5461A-ISZ?

A: Yes. Both parts maintain identical meter type (single phase), package format (24-SSOP), measurement error (0.1%), input impedance (30kOhm), supply current (2.9mA), operating temperature range (-40°C ~ 85°C), and compliance certifications (ROHS3, MSL 3). The expanded supply voltage range (3.135V ~ 5.25V) versus the original (4.75V ~ 5.25V) does not preclude substitution when system design operates within the original voltage specification.

Q: What is the difference between CS5463K-ISZ and CS5463K-ISZR?

A: Both parts are electrically and functionally identical. The difference is packaging format: CS5463K-ISZ is supplied in Tube packaging, while CS5463K-ISZR is supplied in Tape & Reel (TR) format. Selection depends on assembly process requirements. Tape & Reel format is standard for automated pick-and-place assembly operations.

Q: Why is CS5461AK-ISZ listed as an alternative if it is also obsolete?

A: CS5461AK-ISZ is provided as a documented substitute based on manufacturer specifications. However, for new designs or long-term production requirements, CS5463K-ISZ or CS5463K-ISZR are preferred due to active product status, ensuring continued manufacturing support and availability.

Q: Are there any voltage compatibility concerns when substituting with CS5463K series parts?

A: The CS5463K series supports a lower minimum supply voltage (3.135V versus 4.75V). This expanded range is backward compatible with systems designed for the original CS5461A-ISZ specification. No circuit modifications are required when operating within the original voltage window.

Q: What packaging considerations apply to component selection?

A: All substitute parts use the identical 24-SSOP package format. Packaging type (Tube versus Tape & Reel) affects handling and assembly processes but does not impact electrical performance or PCB footprint compatibility.