SA571DR2 Audio Compandor IC - Equivalent & Substitute Parts

Part Overview

The SA571DR2 is a 2-channel audio compandor integrated circuit manufactured by onsemi, designed for consumer audio and telecommunication system applications. This device operates across a 6V to 18V supply voltage range and maintains performance over the -40°C to 85°C temperature range. The SA571DR2 is classified as obsolete, making identification of active equivalent parts essential for ongoing system support and new design implementations.

Substiute Parts

SA571DR2

onsemiIn Stock: 4882SA571DR2 Datasheet

Current PartRFQ

SA571DR2G

onsemiIn Stock: 20096SA571DR2G Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SA571DR2 is determined by strict equivalence across the following parameters:

• Functional equivalence: Identical 2-channel compandor function
• Electrical compatibility: Matching 6V to 18V supply voltage range and -40°C to 85°C operating temperature
• Interface specification: Analog interface type
• Package compatibility: 16-SOIC surface mount package with identical pinout
• Performance specification: 110dB specification maintained
• Manufacturer consistency: onsemi as original manufacturer

The SA571DR2G qualifies as a direct substitute based on complete alignment with all these parameters.

Parameter Comparison

Engineering Selection Recommendations

The SA571DR2G is the direct functional and electrical equivalent of the SA571DR2. Selection between these parts is determined by application requirements and regulatory compliance:

SA571DR2G is the preferred selection for new designs and ongoing production due to its active product status and ROHS3 compliance. This part maintains identical electrical and functional specifications while offering improved regulatory alignment.

SA571DR2 remains applicable only for legacy system maintenance where existing inventory is available and RoHS non-compliance is acceptable within the application context.

The transition from SA571DR2 to SA571DR2G involves no circuit redesign, as both parts share identical pinout, electrical characteristics, and performance specifications. Packaging format differs (tube versus tape & reel), which affects procurement and assembly processes but not functional compatibility.

Frequently Asked Questions (FAQ)

Q: Can SA571DR2G directly replace SA571DR2 in existing designs?

A: Yes. Both parts are electrically and functionally identical with matching pinout, supply voltage range (6V ~ 18V), operating temperature range (-40°C ~ 85°C), and 110dB specification. No circuit modifications are required.

Q: What is the difference between SA571DR2 and SA571DR2G?

A: The primary differences are product status (obsolete versus active), RoHS compliance (non-compliant versus ROHS3 compliant), packaging format (tube versus tape & reel), and moisture sensitivity level (MSL 1 versus MSL 3). Electrical and functional performance are identical.

Q: Why is SA571DR2 listed as obsolete?

A: The SA571DR2 has been superseded by the SA571DR2G, which maintains identical specifications while offering active product status and improved regulatory compliance.

Q: Are there packaging considerations when switching from SA571DR2 to SA571DR2G?

A: Yes. SA571DR2 is supplied in tube packaging, while SA571DR2G is supplied in tape & reel format. This affects procurement, storage, and automated assembly processes but does not impact electrical compatibility or circuit performance.

Q: What is the moisture sensitivity level difference, and does it affect circuit design?

A: SA571DR2 has MSL 1 (unlimited moisture exposure tolerance), while SA571DR2G has MSL 3 (168-hour moisture exposure limit). This affects component storage and handling procedures but does not alter electrical specifications or circuit design requirements.

Q: Is SA571DR2G RoHS compliant?

A: Yes, SA571DR2G is ROHS3 compliant. SA571DR2 is RoHS non-compliant. For applications requiring RoHS compliance, SA571DR2G is the required selection.