LM386M-1 Equivalent & Substitute Parts

Part Overview

The LM386M-1 is a Class AB audio amplifier integrated circuit manufactured by Texas Instruments, designed for mono audio amplification applications. This device delivers 325mW output power at 8Ohm load impedance and operates across a 4V to 12V supply voltage range. The LM386M-1 is classified as an obsolete product, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements. The substitute part LM386M-1/NOPB maintains identical electrical and mechanical specifications while offering active product status and improved compliance certifications.

Substiute Parts

LM386M-1

Texas InstrumentsIn Stock: 70838LM386M-1 Datasheet

Current PartRFQ

LM386M-1/NOPB

Texas InstrumentsIn Stock: 10255LM386M-1/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LM386M-1 is determined by strict equivalence across the following critical parameters:

Electrical Specifications:

• Class AB amplifier topology
• 1-Channel (Mono) output configuration
• 325mW maximum output power at 8Ohm load
• 4V to 12V supply voltage range
• 0°C to 70°C operating temperature range

Mechanical Specifications:

• 8-SOIC surface mount package
• 0.154" × 3.90mm package dimensions

Compliance & Certifications:

• REACH Unaffected status
• EAR99 export classification
• HTSUS code 8542.33.0001

The LM386M-1/NOPB satisfies all substitution criteria through identical electrical and mechanical parameters. The primary distinction is product status transition from obsolete to active, coupled with RoHS3 compliance certification.

Parameter Comparison

Engineering Selection Recommendations

For New Designs and Production: The LM386M-1/NOPB is the appropriate selection for all new applications. This part maintains complete electrical and mechanical equivalence to the LM386M-1 while offering active product status, ensuring long-term availability and supply chain stability. The ROHS3 compliance certification satisfies modern regulatory requirements for electronic component manufacturing and distribution.

For Existing Inventory Management: The LM386M-1 remains functionally equivalent for applications already in production or maintenance phases. However, transition to LM386M-1/NOPB is recommended upon next component procurement cycle to align with current compliance standards and secure continued supplier support.

Compliance Considerations: Both parts maintain REACH Unaffected and EAR99 export classification status. The LM386M-1/NOPB provides enhanced compliance through ROHS3 certification, which may be mandatory depending on end-product regulatory requirements and target markets.

Frequently Asked Questions (FAQ)

Q: Can LM386M-1/NOPB be used as a direct replacement for LM386M-1 in existing circuit designs?

A: Yes. The LM386M-1/NOPB is a direct substitute with identical electrical specifications (325mW output power, 4V to 12V supply range, Class AB topology), identical mechanical package (8-SOIC), and identical pin configuration. No circuit modifications are required.

Q: What is the significance of the "/NOPB" suffix in the part number?

A: The "/NOPB" designation indicates "No Plumbum" (lead-free) packaging, reflecting RoHS3 compliance. This suffix distinguishes the active production variant from the obsolete LM386M-1.

Q: Are there differences in thermal performance between LM386M-1 and LM386M-1/NOPB?

A: No thermal performance differences exist. Both parts operate across the identical 0°C to 70°C temperature range and deliver 325mW output power at 8Ohm load impedance.

Q: What packaging format is supplied for LM386M-1/NOPB?

A: The LM386M-1/NOPB is supplied in Tube packaging format, suitable for automated assembly processes and component handling.

Q: Are there any supply voltage or load impedance restrictions when substituting these parts?

A: No. Both parts operate identically across the 4V to 12V supply voltage range and deliver rated 325mW power at 8Ohm load impedance. Load impedance and supply voltage specifications are interchangeable.

Q: What is the moisture sensitivity level for both parts?

A: Both LM386M-1 and LM386M-1/NOPB carry MSL 1 (Unlimited) classification, indicating no moisture sensitivity restrictions during storage or handling.

Q: Are export restrictions different between these two part numbers?

A: No. Both parts maintain identical ECCN EAR99 classification and HTSUS code 8542.33.0001, with no differential export control implications.