SC358NG Equivalent & Substitute Parts

Part Overview

The SC358NG is a general-purpose operational amplifier featuring two independent circuits in an 8-pin DIP package. Manufactured by onsemi, this device is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations. The SC358NG operates across a wide supply voltage range of 3V to 32V with an input offset voltage of 2mV and output current capability of 40mA per channel, suitable for general-purpose analog signal processing applications.

Substiute Parts

SC358NG

onsemiIn Stock: 893SC358NG Datasheet

Current PartRFQ

LM358DR2G

onsemiIn Stock: 492264LM358DR2G Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SC358NG is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Criteria:

• Amplifier Type: General Purpose
• Number of Circuits: 2
• Voltage - Input Offset: 2 mV
• Current - Output / Channel: 40 mA
• Voltage - Supply Span: 3V to 32V
• Operating Temperature Range: 0°C to 70°C

Mechanical Compatibility Criteria:

• Package configuration must accommodate the application's mounting requirements
• Pin count and functional pin assignment must match or be compatible with circuit design

The LM358DR2G qualifies as a direct substitute based on identical electrical specifications across all critical parameters. While the LM358DR2G employs surface-mount packaging (8-SOIC) compared to the through-hole 8-DIP configuration of the SC358NG, the electrical performance and functional characteristics remain equivalent. The LM358DR2G maintains active product status, ensuring long-term availability and supply chain continuity.

Parameter Comparison

Engineering Selection Recommendations

The LM358DR2G serves as the primary substitute for the obsolete SC358NG based on complete electrical parameter equivalence and active product status. Both devices share identical specifications for input offset voltage, output current capability, supply voltage range, and operating temperature, ensuring functional interchangeability in circuit applications.

The transition from through-hole 8-DIP to surface-mount 8-SOIC packaging represents the primary design consideration. Applications utilizing through-hole PCB layouts require either adapter solutions or PCB redesign to accommodate the LM358DR2G. Conversely, modern surface-mount manufacturing processes benefit directly from the LM358DR2G's compact footprint and automated assembly compatibility.

The LM358DR2G maintains ROHS3 compliance and carries identical regulatory classifications (REACH Unaffected, ECCN EAR99) as the SC358NG, supporting seamless integration into compliant supply chains. The active product status of the LM358DR2G ensures sustained availability, technical support, and manufacturing continuity, addressing the supply constraints associated with the obsolete SC358NG.

Frequently Asked Questions (FAQ)

Q: Can the LM358DR2G directly replace the SC358NG in existing through-hole PCB designs?

A: Electrical substitution is complete; however, mechanical accommodation is required. The LM358DR2G uses 8-SOIC surface-mount packaging versus the 8-DIP through-hole configuration of the SC358NG. Direct socket replacement is not possible without PCB modification or adapter hardware.

Q: What electrical parameters confirm substitution compatibility between SC358NG and LM358DR2G?

A: Both devices maintain identical specifications across all critical parameters: 2mV input offset voltage, 40mA output current per channel, 3V to 32V supply voltage range, and 0°C to 70°C operating temperature. These parameters define functional equivalence for general-purpose amplifier applications.

Q: Are there compliance or regulatory differences between SC358NG and LM358DR2G?

A: Both devices carry identical regulatory status: REACH Unaffected, ECCN EAR99, and MSL 1 (Unlimited). The LM358DR2G additionally maintains ROHS3 compliance, supporting modern environmental standards.

Q: Why is the SC358NG classified as obsolete?

A: The SC358NG is an older through-hole package variant. The LM358DR2G represents the current-generation equivalent, reflecting industry transition toward surface-mount technology and automated manufacturing processes.

Q: What is the primary design consideration when transitioning from SC358NG to LM358DR2G?

A: Packaging format represents the primary consideration. The LM358DR2G's 8-SOIC surface-mount package requires PCB redesign or adapter solutions for applications originally designed around the 8-DIP through-hole footprint. Electrical performance remains unchanged.

Q: Does the LM358DR2G offer improved performance compared to the SC358NG?

A: Electrical specifications are equivalent. The LM358DR2G provides enhanced supply chain availability, active product status, and compatibility with modern manufacturing processes. No performance enhancement is specified.

Q: How does the number of circuits affect substitution?

A: Both the SC358NG and LM358DR2G contain two independent operational amplifier circuits. This parameter is identical and confirms functional equivalence for dual-amplifier applications.