PAM8403DR-L_B00 Equivalent & Substitute Parts

Part Overview

The PAM8403DR-L_B00 is a Class D stereo amplifier IC manufactured by Diodes Incorporated, designed for 2-channel audio amplification with 3W output power per channel at 4Ω load impedance. This component operates across a 2.5V to 5.5V supply voltage range and integrates depop, short-circuit, and thermal protection features. The part is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements.

Substiute Parts

PAM8403DR-L_B00

Diodes IncorporatedIn Stock: 762PAM8403DR-L_B00 Datasheet

Current PartRFQ

PAM8403DR

Diodes IncorporatedIn Stock: 17395PAM8403DR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PAM8403DR-L_B00 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Requirements:

• Identical Class D amplifier topology
• 2-Channel (Stereo) output configuration
• 3W x 2 @ 4Ω maximum output power specification
• Operating temperature range: -40°C ~ 85°C (TA)
• Integrated protection features: Depop, Short-Circuit, and Thermal Protection

Mechanical Compatibility Requirements:

• Surface mount technology
• 16-SOIC package footprint (0.154", 3.90mm Width)
• Identical pin configuration and lead spacing

Regulatory & Compliance Requirements:

• ROHS3 Compliant status
• REACH Unaffected classification

The PAM8403DR qualifies as a direct substitute based on full alignment with these parameters. Both parts share the same base product number (PAM8403) and maintain identical electrical performance specifications and physical package dimensions.

Parameter Comparison

Engineering Selection Recommendations

The PAM8403DR is the appropriate substitute for the obsolete PAM8403DR-L_B00. Both components are manufactured by Diodes Incorporated and maintain identical electrical performance specifications, output power ratings, and physical package dimensions. The substitute part is currently in active production status with substantial inventory availability (17,286 pcs), ensuring supply chain continuity.

The PAM8403DR operates across a minimum supply voltage of 2.8V compared to the main part's 2.5V minimum. Applications requiring operation below 2.8V require design verification against the substitute part's electrical specifications. Both parts maintain ROHS3 compliance and REACH Unaffected status, satisfying regulatory requirements for new designs.

The substitute part carries an MSL rating of 3 (168 Hours) versus the main part's MSL 1 (Unlimited), requiring adherence to moisture control protocols during storage and handling per IPC-A-610 standards.

Frequently Asked Questions (FAQ)

Q: Can the PAM8403DR directly replace the PAM8403DR-L_B00 in existing designs?

A: Yes. Both parts share identical electrical specifications, output power ratings (3W x 2 @ 4Ω), operating temperature range (-40°C ~ 85°C), and 16-SOIC package footprint. Pin-for-pin compatibility is maintained.

Q: What is the difference in supply voltage specifications between these parts?

A: The PAM8403DR-L_B00 operates from 2.5V to 5.5V, while the PAM8403DR operates from 2.8V to 5.5V. Applications operating below 2.8V require verification against the substitute part's datasheet specifications.

Q: Are there packaging differences between the main part and substitute?

A: Both parts use 16-SOIC (0.154", 3.90mm Width) surface mount packages with identical footprints. The main part is supplied in standard packaging, while the substitute is available in Cut Tape (CT) and Digi-Reel® formats.

Q: What is the significance of the different MSL ratings?

A: The PAM8403DR-L_B00 carries MSL 1 (Unlimited moisture sensitivity), while the PAM8403DR carries MSL 3 (168 Hours). The substitute part requires moisture control during storage and handling per IPC-A-610 standards, with a maximum floor life of 168 hours after bag opening.

Q: Why is the main part classified as obsolete?

A: The PAM8403DR-L_B00 is obsolete, but the base product line (PAM8403) remains active through the PAM8403DR variant. The substitute part represents the current active production equivalent.

Q: Are both parts ROHS3 compliant?

A: Yes. Both the PAM8403DR-L_B00 and PAM8403DR are ROHS3 Compliant and REACH Unaffected, meeting current regulatory requirements for electronic components.