TDF8544J/N2,112 Equivalent & Substitute Parts

Part Overview

The TDF8544J/N2,112 is a 4-channel Class AB audio amplifier IC manufactured by NXP USA Inc., designed for applications requiring 28W output power per channel at 4Ω load impedance. This device integrates protection features including depop, I2C control, mute functionality, short-circuit protection, thermal protection, and standby mode. The part is classified as obsolete, necessitating identification of active equivalent alternatives to ensure design continuity and supply chain reliability.

Substiute Parts

TDF8544J/N2,112

NXP USA Inc.In Stock: 783TDF8544J/N2,112 Datasheet

Current PartRFQ

TDF8544J/N3,112

NXP USA Inc.In Stock: 1108TDF8544J/N3,112 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TDF8544J/N2,112 is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Amplifier type: Class AB topology
• Channel configuration: 4-Channel (Quad) output
• Output power specification: 28W per channel at 4Ω load
• Supply voltage range: 6V to 18V
• Integrated protection and control features: Depop, I2C, Mute, Short-Circuit Protection, Thermal Protection, Standby

Mechanical and Package Equivalence Criteria:

• Mounting type: Through Hole
• Package designation: 27-SIP, Formed Leads
• Supplier device package: DBS27P

Compliance Equivalence Criteria:

• RoHS3 Compliance
• REACH Unaffected status
• ECCN classification: EAR99
• HTSUS code: 8542.33.0001

The substitute part TDF8544J/N2,112 must maintain identical electrical performance, physical form factor, and regulatory compliance to ensure direct interchangeability without circuit redesign or board modification.

Parameter Comparison

Engineering Selection Recommendations

The TDF8544J/N3,112 is the direct equivalent substitute for the obsolete TDF8544J/N2,112. Selection of this substitute is based on the following engineering criteria:

Electrical Compatibility: All electrical parameters are identical, including amplifier class, channel configuration, output power rating, supply voltage range, and integrated protection features. No circuit modifications are required.

Physical Compatibility: Both parts utilize the 27-SIP DBS27P package with formed leads and through-hole mounting. PCB layout and component placement remain unchanged.

Regulatory and Compliance Alignment: Both parts maintain ROHS3 compliance, REACH unaffected status, and identical ECCN and HTSUS classifications, ensuring regulatory continuity across design revisions.

Product Status Advantage: The substitute part TDF8544J/N3,112 carries active product status with confirmed inventory availability (1024 pcs), whereas the main part is obsolete. This transition ensures long-term supply chain security and design sustainability.

Packaging Consideration: The substitute is supplied in tube packaging, which is standard for through-hole components and compatible with automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can TDF8544J/N3,112 be used as a direct replacement for TDF8544J/N2,112 without circuit modification?

A: Yes. All electrical specifications, output power ratings, supply voltage requirements, integrated protection features, and physical package dimensions are identical. Direct substitution is possible without circuit redesign or PCB layout changes.

Q: What is the difference between the N2 and N3 designations in the part numbers?

A: The N2 and N3 designations indicate different manufacturing batches or packaging configurations. The N3 variant is the active production version, while N2 is obsolete. Electrical and functional performance are equivalent.

Q: Are there any compatibility concerns with the 27-SIP DBS27P package?

A: No. Both parts use identical 27-SIP DBS27P packages with formed leads for through-hole mounting. Pin configuration, spacing, and mechanical dimensions are identical, ensuring direct PCB compatibility.

Q: Does the tube packaging of TDF8544J/N3,112 affect assembly or performance?

A: No. Tube packaging is standard for through-hole components and is fully compatible with automated pick-and-place and wave soldering assembly processes. Packaging format does not affect electrical performance or reliability.

Q: Are both parts compliant with current environmental and export regulations?

A: Yes. Both TDF8544J/N2,112 and TDF8544J/N3,112 are ROHS3 compliant and REACH unaffected. Both carry EAR99 ECCN classification and 8542.33.0001 HTSUS code, ensuring regulatory compliance for current applications.

Q: What is the inventory status for the substitute part?

A: TDF8544J/N3,112 has 1024 pcs of new original stock available, providing reliable supply for production and design transitions from the obsolete TDF8544J/N2,112.