TS2012IQT Equivalent & Substitute Parts

Part Overview

The TS2012IQT is a Class D stereo amplifier IC manufactured by STMicroelectronics, designed for 2-channel audio applications with 2.8W output power per channel at 4Ω load impedance. The device operates across a 2.5V to 5.5V supply voltage range and integrates protection features including depop, differential inputs, standby mode, and thermal protection in a 20-QFN (4x4) surface mount package.

The TS2012IQT has reached obsolete product status. Equivalent and substitute parts are necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this amplifier topology.

Substiute Parts

TS2012IQT

STMicroelectronicsIn Stock: 27853TS2012IQT Datasheet

Current PartRFQ

PAM8404KGR

Diodes IncorporatedIn Stock: 92172PAM8404KGR Datasheet

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TPA2012D2RTJR

Texas InstrumentsIn Stock: 125331TPA2012D2RTJR Datasheet

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TPA2012D2RTJT

Texas InstrumentsIn Stock: 3057TPA2012D2RTJT Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TS2012IQT is determined by the following critical parameters:

Mandatory Matching Criteria:

• Amplifier Type: Class D
• Output Configuration: 2-Channel (Stereo)
• Supply Voltage Range: 2.5V ~ 5.5V
• Operating Temperature Range: -40°C ~ 85°C (TA)
• Package Type: 20-QFN (4x4)
• Mounting Type: Surface Mount
• RoHS Compliance: ROHS3 Compliant

Allowable Variation:

• Max Output Power: Substitute parts may exceed the 2.8W specification, provided all other parameters remain within specification
• Moisture Sensitivity Level: May vary based on storage and handling requirements
• Packaging Format: Cut Tape (CT), Digi-Reel®, or Tape & Reel (TR) formats are interchangeable for component procurement

All three substitute parts meet the mandatory matching criteria and are therefore qualified as direct equivalents for the TS2012IQT.

Parameter Comparison

Engineering Selection Recommendations

PAM8404KGR (Diodes Incorporated)

The PAM8404KGR is an active product with higher output power capability (3W x 2 @ 4Ω) compared to the TS2012IQT (2.8W x 2 @ 4Ω). This part maintains identical supply voltage range, operating temperature specifications, and RoHS3 compliance. The PAM8404KGR features short-circuit and thermal protection with depop functionality. Moisture Sensitivity Level 1 (Unlimited) matches the original part specification. This substitute provides enhanced performance headroom for applications requiring additional output power margin.

TPA2012D2RTJR (Texas Instruments, Cut Tape & Digi-Reel®)

The TPA2012D2RTJR is an active product with lower output power specification (2.1W x 2 @ 4Ω) relative to the TS2012IQT. This part maintains identical supply voltage range, operating temperature specifications, and RoHS3 compliance. The TPA2012D2RTJR includes differential inputs, short-circuit and thermal protection, and shutdown functionality. Moisture Sensitivity Level 2 (1 Year) requires appropriate storage and handling protocols. Packaging format matches the original part (Cut Tape & Digi-Reel®), facilitating direct procurement substitution.

TPA2012D2RTJT (Texas Instruments, Tape & Reel)

The TPA2012D2RTJT is an active product with identical electrical specifications to the TPA2012D2RTJR, including 2.1W x 2 @ 4Ω output power, supply voltage range, operating temperature, and RoHS3 compliance. The primary distinction is packaging format (Tape & Reel versus Cut Tape & Digi-Reel®). This part is suitable for high-volume production environments where Tape & Reel packaging is standard. Moisture Sensitivity Level 2 (1 Year) applies.

Selection Basis:

All three substitute parts satisfy mandatory electrical and mechanical compatibility criteria. Selection among these alternatives depends on output power requirements, packaging format preferences, and supply chain availability. The PAM8404KGR provides performance enhancement. The TPA2012D2RTJR and TPA2012D2RTJT offer Texas Instruments sourcing with active product status and extended feature sets. All substitutes maintain full compliance with RoHS3 and REACH regulations applicable to the original TS2012IQT.

Frequently Asked Questions (FAQ)

Q: Can the PAM8404KGR replace the TS2012IQT in existing designs without PCB modification?

A: The PAM8404KGR shares identical package type (20-QFN 4x4), supply voltage range (2.5V ~ 5.5V), and operating temperature specifications (-40°C ~ 85°C TA) with the TS2012IQT. Pin-to-pin compatibility requires verification against device datasheets. The higher output power rating (3W versus 2.8W) does not preclude direct substitution in applications designed for the original part.

Q: What is the impact of Moisture Sensitivity Level differences between substitute parts?

A: The TS2012IQT and PAM8404KGR specify Moisture Sensitivity Level 1 (Unlimited), permitting indefinite storage without moisture control. The TPA2012D2RTJR and TPA2012D2RTJT specify Moisture Sensitivity Level 2 (1 Year), requiring storage in controlled humidity environments and baking procedures prior to reflow soldering if storage duration exceeds one year. Component handling protocols must align with the selected substitute part's MSL rating.

Q: Are the 20-VFQFN and 20-WFQFN package variants interchangeable?

A: Both package variants are 20-QFN (4x4) surface mount packages with exposed pads. Physical dimensions and thermal characteristics may differ between VFQFN and WFQFN variants. PCB footprint compatibility requires confirmation against manufacturer package drawings. Thermal performance characteristics should be evaluated for applications with stringent thermal requirements.

Q: What is the significance of product status (Obsolete versus Active) for substitution decisions?

A: The TS2012IQT is classified as Obsolete, indicating discontinued manufacturing and limited future availability. The PAM8404KGR, TPA2012D2RTJR, and TPA2012D2RTJT are all Active products with ongoing manufacturing and extended supply chain availability. Active product status ensures long-term component sourcing capability for production and field service applications.

Q: Can the TPA2012D2RTJR and TPA2012D2RTJT be used interchangeably?

A: The TPA2012D2RTJR and TPA2012D2RTJT are electrically identical with identical output power (2.1W x 2 @ 4Ω), supply voltage, operating temperature, and protection features. The distinction is packaging format: TPA2012D2RTJR is supplied in Cut Tape & Digi-Reel® format, while TPA2012D2RTJT is supplied in Tape & Reel format. Selection depends on procurement and assembly process requirements rather than electrical compatibility.

Q: How does the lower output power of TPA2012D2RTJR/TPA2012D2RTJT (2.1W) compare to the TS2012IQT (2.8W)?

A: The TPA2012D2RTJR and TPA2012D2RTJT deliver 2.1W per channel at 4Ω load, representing approximately 75% of the TS2012IQT output power specification. Applications requiring the full 2.8W output capability should select the PAM8404KGR (3W per channel). Applications with output power requirements below 2.1W per channel are compatible with the Texas Instruments alternatives.