LM358N Equivalent & Substitute Parts

Part Overview

The LM358N is a general-purpose operational amplifier featuring two independent circuits in an 8-DIP through-hole package. This device is classified as obsolete, which necessitates identification of equivalent and substitute components for ongoing design support and procurement continuity. The LM358N operates across a wide supply voltage range of 3V to 32V and is suitable for applications requiring low input bias current and moderate bandwidth performance.

Substiute Parts

LM358N

Texas InstrumentsIn Stock: 17534LM358N Datasheet

Current PartRFQ

LM358N/NOPB

Texas InstrumentsIn Stock: 2269LM358N/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LM358N is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Requirements:

• Amplifier Type: General Purpose
• Number of Circuits: 2
• Current - Input Bias: 45 nA
• Voltage - Input Offset: 2 mV
• Current - Supply: 1 mA
• Current - Output / Channel: 40 mA
• Voltage - Supply Span: 3V to 32V
• Operating Temperature Range: 0°C to 70°C

Mechanical Compatibility Requirements:

• Mounting Type: Through Hole
• Package / Case: 8-DIP (0.300", 7.62mm)
• Supplier Device Package: 8-PDIP

Compliance Considerations:

• RoHS Status and Product Status are secondary factors that influence selection priority but do not disqualify electrical and mechanical compatibility.

The LM358N/NOPB is identified as a direct substitute based on full parameter alignment across all electrical and mechanical specifications. This part maintains identical core functionality while offering improved product status (Active) and enhanced compliance (ROHS3 Compliant).

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: LM358N/NOPB

The LM358N/NOPB is the direct equivalent for the obsolete LM358N. This substitute maintains full electrical and mechanical compatibility across all specified parameters. The LM358N/NOPB offers two significant advantages:

1. Product Status: Active product status ensures ongoing availability and manufacturing support from Texas Instruments.
2. Compliance: ROHS3 compliance satisfies modern regulatory requirements, whereas the original LM358N is RoHS non-compliant.

The LM358N/NOPB exhibits a higher gain bandwidth product (1 MHz versus 700 kHz), which represents an enhancement in performance characteristics while maintaining backward compatibility with existing circuit designs.

Inventory Consideration: The LM358N/NOPB is available in active inventory (2224 Pcs), providing reliable procurement continuity for new designs and legacy system support.

Frequently Asked Questions (FAQ)

Q: Can the LM358N/NOPB be used as a direct replacement for the LM358N in existing designs?

A: Yes. The LM358N/NOPB maintains identical electrical specifications for input bias current, input offset voltage, supply current, output current, and supply voltage range. The mechanical package (8-DIP, 0.300" pitch) is identical, enabling direct pin-for-pin substitution on printed circuit boards.

Q: What is the significance of the higher gain bandwidth product in the LM358N/NOPB?

A: The LM358N/NOPB specifies a gain bandwidth product of 1 MHz compared to 700 kHz in the LM358N. This represents improved frequency response characteristics. The higher bandwidth does not compromise compatibility; it enhances performance in applications requiring faster signal processing.

Q: Why is the LM358N classified as obsolete?

A: The LM358N is listed as obsolete by Texas Instruments. The LM358N/NOPB is the active equivalent product that supersedes it. For new designs and ongoing procurement, the LM358N/NOPB is the recommended selection.

Q: Does the RoHS compliance difference affect circuit functionality?

A: RoHS compliance relates to material composition and environmental regulations, not circuit functionality. Both the LM358N and LM358N/NOPB perform identically in circuit operation. However, the LM358N/NOPB's ROHS3 compliance satisfies modern procurement and regulatory standards.

Q: Are there packaging differences between LM358N and LM358N/NOPB?

A: Both parts use the 8-DIP (0.300", 7.62mm) package for through-hole mounting. The LM358N/NOPB is supplied in Tube packaging, whereas the original LM358N packaging is not specified. This difference does not affect electrical or mechanical compatibility.

Q: What is the current inventory status for these parts?

A: The LM358N has 17468 Pcs in stock (obsolete status). The LM358N/NOPB has 2224 Pcs in active inventory. For new procurement, the LM358N/NOPB is the recommended selection due to its active product status.