SC393DR2G Equivalent & Substitute Parts

Part Overview

The SC393DR2G is a dual comparator IC manufactured by onsemi in an 8-SOIC surface mount package. This device is classified as obsolete, making it necessary to identify active equivalent components for new designs and ongoing production requirements. The SC393DR2G serves general-purpose comparison applications requiring dual-channel functionality in a compact surface mount form factor.

Substiute Parts

SC393DR2G

onsemiIn Stock: 986SC393DR2G Datasheet

Current PartRFQ

NCV2903DR2G

onsemiIn Stock: 145254NCV2903DR2G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The NCV2903DR2G qualifies as a direct substitute for the SC393DR2G based on the following alignment of critical parameters:

• Package Compatibility: Both devices utilize the 8-SOIC (0.154", 3.90mm Width) surface mount package, ensuring mechanical and electrical pin compatibility
• Functional Category: Both are classified as Linear comparators with dual-channel configuration
• Mounting Type: Both employ surface mount technology, compatible with identical PCB assembly processes
• Compliance Standards: Both maintain ROHS3 compliance and REACH Unaffected status
• Moisture Sensitivity: Both specify MSL 1 (Unlimited), indicating identical moisture handling requirements

The primary distinction is product status: the SC393DR2G is obsolete, while the NCV2903DR2G maintains active production status with automotive-grade qualification (AEC-Q100).

Parameter Comparison

Engineering Selection Recommendations

The NCV2903DR2G is the designated manufacturer-recommended substitute for the obsolete SC393DR2G. Selection of this substitute is justified by:

• Identical Package Footprint: The 8-SOIC package ensures direct PCB compatibility without layout modifications
• Active Production Status: The NCV2903DR2G maintains active manufacturing status, ensuring long-term availability and supply chain stability
• Automotive Qualification: AEC-Q100 qualification provides enhanced reliability documentation suitable for demanding applications
• Regulatory Compliance: Both devices maintain equivalent RoHS3 and REACH compliance postures
• Established Specifications: The NCV2903DR2G provides documented electrical parameters across standard operating conditions, enabling precise circuit design validation

Frequently Asked Questions (FAQ)

Q: Can the NCV2903DR2G be used as a direct replacement for the SC393DR2G without PCB modifications?

A: Yes. Both devices share identical 8-SOIC package geometry and pin configuration, permitting direct substitution without PCB layout changes.

Q: What is the primary reason for substituting the SC393DR2G?

A: The SC393DR2G is classified as obsolete. The NCV2903DR2G maintains active production status, ensuring continued availability and supply chain reliability.

Q: Are there compliance differences between these devices?

A: No. Both devices maintain ROHS3 compliance and REACH Unaffected status, with identical MSL 1 (Unlimited) moisture sensitivity ratings.

Q: Does the NCV2903DR2G provide additional technical specifications?

A: Yes. The NCV2903DR2G includes documented electrical parameters including supply voltage range (2V ~ 36V, ±1V ~ 18V), input offset voltage (7mV @ 30V), and operating temperature range (-40°C ~ 125°C). The SC393DR2G specifications were not provided in available documentation.

Q: Is the NCV2903DR2G suitable for automotive applications?

A: Yes. The NCV2903DR2G carries automotive-grade designation with AEC-Q100 qualification, making it suitable for automotive and high-reliability applications.

Q: What packaging options are available for the NCV2903DR2G?

A: The NCV2903DR2G is available in Cut Tape (CT) and Digi-Reel® packaging formats, both in the 8-SOIC surface mount configuration.