CS5461AK-ISZ Equivalent & Substitute Parts

Part Overview

The CS5461AK-ISZ is a single-phase meter integrated circuit manufactured by Cirrus Logic Inc., classified as a Power Management (PMIC) component. This device functions as a single-phase bidirectional power measurement IC in a 24-SSOP surface mount package. The CS5461AK-ISZ is currently listed with obsolete product status. Identification of equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing single-phase power measurement functionality.

Substiute Parts

CS5461AK-ISZ

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

Current PartRFQ

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 of the CS5461AK-ISZ is determined by strict equivalence across the following critical parameters:

Functional Parameters:

• Meter Type: Single Phase (identical across all parts)
• Input Impedance: 30 kOhm (identical across all parts)
• Measurement Error: 0.1% (identical across all parts)

Electrical Parameters:

• Voltage - Supply: 3.135 V ~ 5.25 V (identical across all parts)
• Voltage - I/O High: 4V (identical across all parts)
• Voltage - I/O Low: 0.4V (identical across all parts)
• Current - Supply: 2.9 mA (identical across all parts)
• Operating Temperature: -40°C ~ 85°C (TA) (identical across all parts)

Physical Parameters:

• Package / Case: 24-SSOP (0.209", 5.30mm Width) (identical across all parts)
• Mounting Type: Surface Mount (identical across all parts)

Compliance Parameters:

• RoHS Status: ROHS3 Compliant (identical across all parts)
• Moisture Sensitivity Level (MSL): 3 (168 Hours) (identical across all parts)

The substitute parts CS5463K-ISZ and CS5463K-ISZR maintain complete electrical and mechanical compatibility with the CS5461AK-ISZ. The primary distinction between substitute parts is packaging format: CS5463K-ISZ is supplied in Tube packaging, while CS5463K-ISZR is supplied in Tape & Reel (TR) packaging.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: CS5463K-ISZR

The CS5463K-ISZR is the preferred substitute for the obsolete CS5461AK-ISZ. This part maintains active product status with Cirrus Logic Inc., ensuring long-term availability and continued manufacturer support. The CS5463K-ISZR is supplied in Tape & Reel (TR) packaging format, which is the standard format for high-volume automated assembly operations. All electrical specifications, mechanical dimensions, and compliance certifications are identical to the CS5461AK-ISZ.

Secondary Recommendation: CS5463K-ISZ

The CS5463K-ISZ is an equivalent alternative supplied in Tube packaging. This part is also active and maintains identical electrical and mechanical specifications. Selection of CS5463K-ISZ is appropriate for applications requiring Tube packaging or lower-volume procurement scenarios.

Compliance Considerations:

Both substitute parts maintain ROHS3 compliance and identical Moisture Sensitivity Level (MSL) ratings, ensuring compatibility with existing manufacturing processes and environmental requirements. The REACH Unaffected status is consistent across all parts.

Frequently Asked Questions (FAQ)

Q: Can CS5463K-ISZ or CS5463K-ISZR be used as direct replacements for CS5461AK-ISZ?

A: Yes. Both CS5463K-ISZ and CS5463K-ISZR are direct electrical and mechanical equivalents. All functional parameters, electrical specifications, and physical dimensions are identical. The parts are pin-compatible and require no circuit modifications.

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

A: The primary difference is packaging format. CS5463K-ISZ is supplied in Tube packaging, while CS5463K-ISZR is supplied in Tape & Reel (TR) packaging. Both parts are electrically and mechanically identical. Tape & Reel packaging is standard for automated assembly operations, while Tube packaging is suitable for manual handling or lower-volume applications.

Q: Why is the CS5461AK-ISZ listed as obsolete?

A: The CS5461AK-ISZ has been superseded by the CS5463 series. The CS5463K-ISZ and CS5463K-ISZR are the active production equivalents and are recommended for all new designs and ongoing production requirements.

Q: Are there any differences in compliance or certifications between the main part and substitutes?

A: No. All parts maintain identical RoHS3 compliance, REACH Unaffected status, and Moisture Sensitivity Level (MSL) ratings. Compliance certifications are consistent across CS5461AK-ISZ, CS5463K-ISZ, and CS5463K-ISZR.

Q: Can I mix packaging formats in the same production run?

A: Yes. CS5463K-ISZ (Tube) and CS5463K-ISZR (Tape & Reel) are electrically and mechanically identical. Mixing packaging formats is permissible from a technical standpoint; however, assembly process considerations may apply depending on your manufacturing equipment and procedures.

Q: What is the inventory status of the substitute parts?

A: CS5463K-ISZ has 1,187 pieces in stock. CS5463K-ISZR has 2,811 pieces in stock. Both parts are actively maintained in inventory.

Q: Are there any thermal or operating condition differences?

A: No. All parts operate identically across the -40°C ~ 85°C (TA) temperature range with identical supply voltage requirements (3.135 V ~ 5.25 V) and current consumption (2.9 mA).