PAM8403DR-L Equivalent & Substitute Parts

Part Overview

The PAM8403DR-L is a Class D stereo amplifier integrated circuit manufactured by Diodes Incorporated, designed for 2-channel audio amplification applications. This component delivers 3W per channel at 4Ω load impedance and operates across a 2.5V to 5.5V supply voltage range. The device integrates depop, short-circuit, and thermal protection features suitable for portable audio and consumer electronics applications.

The PAM8403DR-L carries an obsolete product status, necessitating identification of functionally equivalent active alternatives for new designs and ongoing production requirements. Substitute components must maintain electrical performance specifications, mechanical compatibility, and regulatory compliance to ensure seamless integration into existing or new circuit implementations.

Substiute Parts

PAM8403DR-L

Diodes IncorporatedIn Stock: 1011PAM8403DR-L Datasheet

Current PartRFQ

PAM8403DR

Diodes IncorporatedIn Stock: 17395PAM8403DR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PAM8403DR-L is determined by strict alignment with the following electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Class D amplifier topology
• 2-channel stereo output configuration
• 3W per channel output power at 4Ω load
• Integrated depop, short-circuit, and thermal protection
• Operating temperature range of -40°C to 85°C
• RoHS3 compliance certification

Mechanical Compatibility Criteria:

• 16-pin SOIC package format
• 0.154" (3.90mm) package width
• Surface mount technology

The PAM8403DR qualifies as a direct substitute based on identical electrical performance specifications, matching package geometry, and active product status with superior supply availability.

Parameter Comparison

Engineering Selection Recommendations

The PAM8403DR serves as the primary substitute for the obsolete PAM8403DR-L. Both components share identical electrical performance characteristics, package geometry, and thermal operating specifications. The PAM8403DR maintains active product status with Diodes Incorporated, ensuring long-term availability and supply chain continuity.

The PAM8403DR exhibits a marginally higher minimum supply voltage specification (2.8V versus 2.5V), which remains compatible with standard 3.3V and 5V supply rails used in consumer audio applications. This specification difference does not restrict substitution in applications operating within the 2.8V to 5.5V range.

Both components carry ROHS3 compliance certification and REACH unaffected status, satisfying regulatory requirements for consumer electronics manufacturing. The PAM8403DR's active product designation and substantially higher inventory levels (17,286 units versus 958 units) provide superior procurement reliability for production environments.

Frequently Asked Questions (FAQ)

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

A: Yes. The PAM8403DR provides direct electrical and mechanical compatibility. Both components feature identical Class D stereo amplifier architecture, 3W per channel output power at 4Ω load, matching 16-SOIC package geometry, and equivalent thermal protection mechanisms. The PAM8403DR's minimum supply voltage of 2.8V accommodates applications designed for the PAM8403DR-L's 2.5V minimum specification.

Q: What is the significance of the supply voltage range difference between these parts?

A: The PAM8403DR-L specifies 2.5V to 5.5V operation, while the PAM8403DR specifies 2.8V to 5.5V. This 0.3V difference in minimum voltage does not affect substitution in standard applications utilizing 3.3V or 5V supply rails. Applications requiring operation below 2.8V require retention of the original PAM8403DR-L or identification of alternative components with lower minimum voltage specifications.

Q: Are there packaging differences between these components?

A: Both components utilize identical 16-pin SOIC surface mount packages with 0.154" (3.90mm) width specifications. No PCB layout modifications are required for substitution. Both components are available in surface mount technology suitable for automated assembly processes.

Q: What compliance certifications apply to both components?

A: Both the PAM8403DR-L and PAM8403DR carry ROHS3 compliance certification and REACH unaffected status. These certifications satisfy regulatory requirements for consumer electronics manufacturing in regulated markets.

Q: Why is the PAM8403DR recommended over the PAM8403DR-L?

A: The PAM8403DR carries active product status with Diodes Incorporated, ensuring ongoing manufacturing and supply availability. The PAM8403DR-L is obsolete, limiting procurement options to existing inventory. The PAM8403DR's substantially higher inventory levels provide superior supply chain reliability for production environments.