SC339DR2G Equivalent & Substitute Parts

Part Overview

The SC339DR2G is a linear comparator IC manufactured by onsemi in a 14-SOIC surface mount package. This device is classified as obsolete, which necessitates identification of active equivalent components for continued system support and new designs. The SC339 base product series requires functional alternatives that maintain package compatibility and electrical performance within acceptable operating parameters.

Substiute Parts

SC339DR2G

onsemiIn Stock: 1120SC339DR2G Datasheet

Current PartRFQ

NCV2901DR2G

onsemiIn Stock: 25255NCV2901DR2G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SC339DR2G is based on the following critical parameters:

• Package Compatibility: Both main and substitute parts must use 14-SOIC surface mount packaging with identical 0.154" (3.90mm) width to ensure PCB layout compatibility without redesign.
• Manufacturer Continuity: onsemi maintains the SC339 product line through active derivatives, ensuring design support and supply chain consistency.
• Compliance Standards: RoHS3 compliance and REACH unaffected status must be maintained for regulatory alignment.
• Moisture Sensitivity: MSL 1 rating ensures no special handling requirements during storage and assembly.

The NCV2901DR2G qualifies as a direct substitute based on identical package specifications and maintained compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The NCV2901DR2G is the qualified substitute for the obsolete SC339DR2G based on the following factors:

• Active Product Status: The NCV2901DR2G maintains active production status, ensuring long-term availability and supply chain reliability compared to the obsolete SC339DR2G.
• Identical Package Specification: Both devices use 14-SOIC surface mount packaging with matching dimensions, eliminating PCB layout modifications.
• Regulatory Compliance: Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying environmental and regulatory requirements.
• Moisture Sensitivity Alignment: Identical MSL 1 rating ensures equivalent handling and storage requirements throughout the supply chain.
• Automotive Grade Qualification: The NCV2901DR2G carries AEC-Q100 automotive qualification and automotive grade designation, providing enhanced reliability for demanding applications.

Frequently Asked Questions (FAQ)

Q: Can the NCV2901DR2G be used as a direct replacement for the SC339DR2G without PCB modifications?

A: Yes. Both devices use identical 14-SOIC surface mount packaging with 0.154" (3.90mm) width, enabling direct pin-compatible substitution without PCB layout changes.

Q: What is the primary reason for substituting the SC339DR2G?

A: The SC339DR2G is classified as obsolete. The NCV2901DR2G is an active product from the same manufacturer, ensuring continued availability and supply chain support.

Q: Are there any compliance differences between these parts?

A: No. Both parts maintain ROHS3 compliance, REACH unaffected status, and MSL 1 moisture sensitivity rating, ensuring equivalent regulatory and handling requirements.

Q: Does the NCV2901DR2G offer additional features or certifications?

A: The NCV2901DR2G includes AEC-Q100 automotive qualification and automotive grade designation, providing enhanced reliability specifications beyond the obsolete SC339DR2G.

Q: What packaging options are available for the NCV2901DR2G?

A: The NCV2901DR2G is supplied in Tape & Reel (TR) packaging format, standard for high-volume surface mount assembly operations.