SC239DR2G Equivalent & Substitute Parts

Part Overview

The SC239DR2G is a quad comparator IC manufactured by onsemi in a 14-SOIC surface mount package. This component is classified as obsolete, which necessitates identification of active equivalent parts for ongoing design requirements and production needs. The SC239DR2G operates as a linear comparator suitable for general signal comparison applications requiring quad-channel functionality in a compact surface mount form factor.

Substiute Parts

SC239DR2G

onsemiIn Stock: 1128SC239DR2G Datasheet

Current PartRFQ

NCV2901DR2G

onsemiIn Stock: 25255NCV2901DR2G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The NCV2901DR2G qualifies as a direct substitute for the SC239DR2G based on the following alignment criteria:

Package Compatibility: Both parts utilize the 14-SOIC (0.154", 3.90mm Width) surface mount package, ensuring mechanical and electrical pin compatibility without PCB redesign.

Compliance Alignment: Both parts maintain ROHS3 compliance and REACH Unaffected status, satisfying regulatory requirements for equivalent component selection.

Moisture Sensitivity: Both parts share MSL 1 (Unlimited) classification, indicating identical moisture handling and storage requirements.

Functional Category: Both are linear comparators manufactured by onsemi, maintaining functional equivalence within the quad comparator product family.

Active Status: The NCV2901DR2G holds Active product status, providing long-term availability and supply chain continuity compared to the obsolete SC239DR2G.

Parameter Comparison

Engineering Selection Recommendations

The NCV2901DR2G is the qualified substitute for the SC239DR2G based on the following engineering criteria:

Regulatory Compliance: Both components maintain identical RoHS3 and REACH compliance status, ensuring no regulatory barriers to substitution.

Package Equivalence: Identical 14-SOIC package specifications eliminate the need for PCB layout modifications or re-qualification of mechanical interfaces.

Supply Chain Continuity: The transition from an obsolete part (SC239DR2G) to an active part (NCV2901DR2G) ensures sustained component availability and eliminates long-term supply risk.

Moisture Handling: Matching MSL 1 classification confirms equivalent moisture sensitivity characteristics and storage requirements.

Automotive Qualification: The NCV2901DR2G carries AEC-Q100 qualification, providing enhanced reliability assurance for applications requiring automotive-grade components.

Frequently Asked Questions (FAQ)

Q: Can the NCV2901DR2G be used as a direct replacement for the SC239DR2G without PCB modifications?

A: Yes. Both components share the identical 14-SOIC package specification (0.154", 3.90mm Width), ensuring pin-for-pin compatibility and direct PCB substitution without layout changes.

Q: What is the primary reason for substituting the SC239DR2G?

A: The SC239DR2G is classified as obsolete. The NCV2901DR2G is an active equivalent that provides long-term supply availability and production continuity.

Q: Are there any compliance differences between these parts?

A: No. Both parts maintain ROHS3 compliance and REACH Unaffected status. Moisture sensitivity levels are identical (MSL 1, Unlimited).

Q: Does the NCV2901DR2G require different handling or storage procedures?

A: No. Both parts share MSL 1 classification, indicating identical moisture sensitivity and storage requirements.

Q: What additional certifications does the NCV2901DR2G provide?

A: The NCV2901DR2G carries AEC-Q100 automotive qualification and is rated for -40°C ~ 125°C operating temperature, with specified supply voltage ranges of 3V ~ 36V (single/dual) and ±1.5V ~ 18V (dual).