CS5463-ISZ Equivalent & Substitute Parts

Part Overview

The CS5463-ISZ is a single-phase energy metering IC manufactured by Cirrus Logic Inc., designed for power and energy measurement applications. This device is classified as a Power Management (PMIC) component and is packaged in a 24-SSOP surface mount package. The CS5463-ISZ is currently listed with obsolete product status, which necessitates identification of functionally equivalent alternatives for ongoing design requirements and component procurement.

Substiute Parts

CS5463-ISZ

Cirrus Logic Inc.In Stock: 22290CS5463-ISZ Datasheet

Current PartRFQ

CS5463K-ISZ

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

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CS5463-ISZ is based on strict equivalence across the following critical parameters:

• Meter Type: Single Phase (identical functional classification)
• Package / Case: 24-SSOP (0.209", 5.30mm Width) (identical mechanical compatibility)
• Input Impedance: 30kOhm (identical electrical specification)
• Measurement Error: 0.1% (identical measurement accuracy)
• Current - Supply: 2.9mA (identical power consumption)
• Operating Temperature: -40°C ~ 85°C (identical thermal operating range)
• Mounting Type: Surface Mount (identical assembly compatibility)
• RoHS Status: ROHS3 Compliant (identical environmental compliance)
• Moisture Sensitivity Level (MSL): 3 (168 Hours) (identical handling requirements)

The CS5463K-ISZ meets all these critical parameters and is classified as an active product, making it a direct functional equivalent for the obsolete CS5463-ISZ.

Parameter Comparison

Engineering Selection Recommendations

The CS5463K-ISZ is the direct substitute for the obsolete CS5463-ISZ based on the following engineering criteria:

• Both devices share identical core functional specifications: single-phase meter type, 30kOhm input impedance, 0.1% measurement error, and 2.9mA supply current.
• Both devices are packaged in the identical 24-SSOP mechanical form factor, ensuring direct PCB compatibility without layout modifications.
• Both devices operate across the identical temperature range (-40°C ~ 85°C) and maintain identical moisture sensitivity classification (MSL 3).
• Both devices maintain ROHS3 compliance and identical environmental certifications.
• The CS5463K-ISZ is actively manufactured by Cirrus Logic Inc., whereas the CS5463-ISZ is obsolete, making the substitute the only viable option for new procurement.
• The CS5463K-ISZ exhibits improved electrical specifications: wider supply voltage range (3.135 V ~ 5.25 V versus 4.75 V ~ 5.25 V) and higher I/O voltage thresholds, providing enhanced operational flexibility.

Frequently Asked Questions (FAQ)

Q: Can the CS5463K-ISZ be used as a direct replacement for the CS5463-ISZ in existing designs?

A: Yes. Both devices are identical in package type (24-SSOP), mounting method (surface mount), and all critical functional parameters including meter type, input impedance, measurement accuracy, and supply current. No PCB modifications are required.

Q: What is the difference between the CS5463-ISZ and CS5463K-ISZ part number suffixes?

A: The suffix designations indicate different product variants within the CS5463 base product family. The "K" variant (CS5463K-ISZ) is the active production version, while the non-K variant (CS5463-ISZ) has reached obsolete status.

Q: Are there any electrical differences that would affect circuit operation?

A: The CS5463K-ISZ has a wider supply voltage operating range (3.135 V ~ 5.25 V) compared to the CS5463-ISZ (4.75 V ~ 5.25 V). The substitute also specifies higher I/O voltage thresholds. These differences represent improved specifications that maintain full backward compatibility.

Q: Do both parts have the same moisture sensitivity requirements?

A: Yes. Both the CS5463-ISZ and CS5463K-ISZ are classified as MSL 3 (168 Hours), requiring identical handling, storage, and reflow procedures.

Q: Is the CS5463K-ISZ compliant with the same environmental standards?

A: Yes. Both devices are ROHS3 compliant and REACH unaffected, maintaining identical environmental certification status.

Q: What is the primary reason to transition from CS5463-ISZ to CS5463K-ISZ?

A: The CS5463-ISZ is obsolete and no longer manufactured. The CS5463K-ISZ is the active equivalent that ensures continued component availability for new designs and production runs.