NJM386BD Equivalent & Substitute Parts Reference

Part Overview

The NJM386BD from Nisshinbo Micro Devices Inc. is a through-hole, Class AB mono audio amplifier IC, capable of delivering 1W output into a 32Ω load. Packaged in an 8-DIP configuration, it operates across a supply range of 4V to 18V and an extended temperature range of -40°C to 85°C. This product is classified as obsolete, making it necessary to identify substitute models with matched electrical and mechanical characteristics, proper compliance, and suitable package types for continued design support and production.

Substiute Parts

NJM386BD

Nisshinbo Micro Devices Inc.In Stock: 2135NJM386BD Datasheet

Current PartRFQ

LM386N-4/NOPB

Texas InstrumentsIn Stock: 37815LM386N-4/NOPB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution is based strictly on identical or compatible parameters, including:

• Amplifier class type (Class AB)
• Output configuration (1-Channel Mono)
• Maximum output power and applicable load (1W x 1 @ 32Ohm)
• Voltage supply range compatibility
• Through-hole mounting with 8-DIP (0.300", 7.62mm) package
• Overlapping or inclusive operating temperature ratings
• Regulatory status (RoHS, MSL, REACH)

Parameter Comparison

Engineering Selection Recommendations

Engineering selection between NJM386BD and LM386N-4/NOPB relies primarily on product status and regulatory compliance. The NJM386BD is obsolete, while the LM386N-4/NOPB is active and widely available. Both models are RoHS compliant (NJM386BD: RoHS Compliant; LM386N-4/NOPB: ROHS3 Compliant) and REACH unaffected. Both have MSL rating 1 (Unlimited), suitable for standard manufacturing processes. The LM386N-4/NOPB's supply voltage range starts at 5V, compared to 4V for the NJM386BD; select only where a minimum supply of 5V is present. For applications requiring a broader operating temperature range, confirm that 0°C ~ 70°C (LM386N-4/NOPB) is adequate.

Frequently Asked Questions (FAQ)

Q1: What are the primary technical parameters required for substituting NJM386BD?
A1: The key parameters include Class AB amplifier type, mono output, maximum power 1W into 32Ω, through-hole 8-DIP (0.300", 7.62mm) package, compatible supply voltage and regulatory compliance.

Q2: Is the package and pinout of LM386N-4/NOPB identical to NJM386BD?
A2: Both parts have an 8-DIP (0.300", 7.62mm) through-hole package, aligning with standard footprint and mechanical compatibility for direct board replacement.

Q3: Are there differences in supply voltage or temperature rating that affect substitution?
A3: LM386N-4/NOPB requires a minimum supply voltage of 5V, compared to 4V for NJM386BD, and an operating temperature of 0°C ~ 70°C versus -40°C ~ 85°C. These must be within the application's requirements for direct substitution.

Q4: How should compliance and inventory status be considered for selection?
A4: Select active, RoHS and REACH-compliant parts for ongoing designs or volume needs. LM386N-4/NOPB is active with large inventory, suitable for replacement of obsolete NJM386BD in compliant applications.

Q5: What is the importance of MSL in choosing substitutes for through-hole audio amplifiers?
A5: Both NJM386BD and LM386N-4/NOPB have an MSL rating of 1 (Unlimited), indicating no special requirements for moisture sensitivity during standard soldering processes.