CS5463-ISZR Equivalent & Substitute Parts

Part Overview

The CS5463-ISZR 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 configuration. The CS5463-ISZR is currently listed as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

CS5463-ISZR

Cirrus Logic Inc.In Stock: 16023CS5463-ISZR Datasheet

Current PartRFQ

CS5463K-ISZR

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

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CS5463-ISZR is determined by strict equivalence across the following critical parameters:

• Meter Type: Single Phase (functional requirement)
• Package / Case: 24-SSOP (0.209", 5.30mm Width) (mechanical compatibility)
• Input Impedance: 30kOhm (electrical specification)
• Measurement Error: 0.1% (measurement accuracy)
• Operating Temperature Range: -40°C ~ 85°C (environmental specification)
• Mounting Type: Surface Mount (assembly compatibility)
• Base Product Number: CS5463 (device family)

The CS5463K-ISZR meets all substitution criteria as a direct equivalent within the CS5463 product family, maintaining identical functional specifications and package compatibility while offering active product status.

Parameter Comparison

Engineering Selection Recommendations

The CS5463K-ISZR is the direct substitute for the obsolete CS5463-ISZR. Both components maintain identical functional specifications for single-phase energy metering applications and are housed in the same 24-SSOP package. The CS5463K-ISZR offers the advantage of active product status, ensuring continued availability and manufacturing support.

Both parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. The CS5463K-ISZR features an extended lower supply voltage limit (3.135 V minimum versus 4.75 V), providing greater operational flexibility in low-voltage applications. The MSL rating difference (MSL 3 versus MSL 2) reflects standard moisture sensitivity classifications and does not affect functional compatibility.

Frequently Asked Questions (FAQ)

Q: Can the CS5463K-ISZR directly replace the CS5463-ISZR in existing designs?

A: Yes. Both components share identical package geometry (24-SSOP), meter type (single phase), input impedance (30kOhm), measurement error (0.1%), and operating temperature range (-40°C ~ 85°C). Pin-to-pin compatibility is maintained.

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

A: The CS5463-ISZR is obsolete, while the CS5463K-ISZR maintains active product status. This ensures long-term availability, manufacturing continuity, and ongoing technical support.

Q: Are there differences in supply voltage requirements?

A: The CS5463K-ISZR supports a lower minimum supply voltage (3.135 V) compared to the CS5463-ISZR (4.75 V). Both support the same maximum of 5.25 V. Designs operating within the 4.75 V to 5.25 V range are fully compatible with both parts.

Q: Do packaging differences affect assembly compatibility?

A: No. Both components use identical 24-SSOP surface mount packaging with 0.209" (5.30mm) width. Assembly processes and PCB layouts require no modification.

Q: What is the significance of the MSL rating difference?

A: MSL 2 (1 Year) for CS5463-ISZR and MSL 3 (168 Hours) for CS5463K-ISZR indicate moisture sensitivity classifications. Both are standard industrial ratings. Storage and handling procedures should follow the respective MSL specifications to maintain component reliability.