THS6042CDG4 Equivalent & Substitute Parts

Part Overview

The THS6042CDG4 is a 2/0 Driver DSL interface IC manufactured by Texas Instruments in an 8-SOIC surface mount package. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations. The part operates across a 5V to 15V supply range and is rated for 0°C to 70°C operating temperatures. Due to its obsolete status, equivalent substitute parts with compatible electrical and mechanical specifications are required for procurement and design continuity.

Substiute Parts

THS6042CDG4

Texas InstrumentsIn Stock: 789THS6042CDG4 Datasheet

Current PartRFQ

LT1253CS8

Linear TechnologyIn Stock: 4906LT1253CS8 Datasheet

MFR RecommendedRFQ

LT1253CS8#PBF

Analog Devices Inc.In Stock: 1219LT1253CS8#PBF Datasheet

MFR RecommendedRFQ

LT1253CS8#TRPBF

Analog Devices Inc.In Stock: 4322LT1253CS8#TRPBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the THS6042CDG4 is based on the following critical parameters that must align across candidate parts:

• Package Compatibility: 8-SOIC (0.154", 3.90mm Width) surface mount package
• Supply Voltage Range: Operating within or encompassing 5V ~ 15V
• Mounting Type: Surface mount configuration
• Functional Category: Driver or amplifier interface circuits
• Thermal Range: Operating temperature compatibility with 0°C ~ 70°C minimum

The substitute parts identified (LT1253CS8, LT1253CS8#PBF, LT1253CS8#TRPBF) share the identical 8-SOIC package footprint and surface mount configuration. While these parts are classified as current feedback amplifiers rather than DSL drivers, they operate within compatible supply voltage ranges and thermal specifications, enabling functional substitution in applications requiring equivalent signal conditioning and amplification characteristics.

Parameter Comparison

Engineering Selection Recommendations

LT1253CS8#TRPBF is the primary substitute recommendation. This part maintains ROHS3 compliance, REACH unaffected status, and MSL 1 (Unlimited) rating, matching the regulatory profile of the original THS6042CDG4. The tape and reel packaging format supports high-volume production environments. Supply voltage range of 4V ~ 28V encompasses the original 5V ~ 15V specification.

LT1253CS8#PBF serves as a secondary option with identical electrical specifications and regulatory compliance. Tube packaging is suitable for lower-volume applications and manual assembly processes.

LT1253CS8 (Linear Technology) is not recommended for new designs due to RoHS non-compliance and REACH affected status, despite active product availability.

All three substitute parts share the identical 8-SOIC package footprint, enabling direct PCB layout compatibility without redesign.

Frequently Asked Questions (FAQ)

Q: Can LT1253CS8 variants directly replace THS6042CDG4 without circuit modification?

A: Package footprint compatibility (8-SOIC) permits direct PCB placement. However, functional equivalence depends on application-specific signal conditioning requirements. Electrical parameter differences, particularly in bandwidth and slew rate specifications, must be evaluated against circuit design constraints.

Q: What is the difference between LT1253CS8, LT1253CS8#PBF, and LT1253CS8#TRPBF?

A: These are the same base part (LT1253CS8) with different packaging formats. LT1253CS8#TRPBF uses tape and reel packaging for automated assembly. LT1253CS8#PBF uses tube packaging for manual handling. The undesignated LT1253CS8 variant uses bulk packaging. Electrical specifications are identical across all three.

Q: Why is LT1253CS8 (Linear Technology) not recommended despite availability?

A: This variant does not meet ROHS3 compliance and carries REACH affected status, creating regulatory and supply chain risk for new designs and long-term procurement.

Q: Are there thermal or moisture sensitivity differences between the original and substitutes?

A: The original THS6042CDG4 specifies MSL 1 (Unlimited). LT1253CS8#PBF and LT1253CS8#TRPBF maintain this rating. Operating temperature specifications are not provided for the LT1253 variants, requiring verification against application thermal requirements.

Q: What compliance certifications should be verified for production use?

A: Confirm ROHS3 compliance and REACH unaffected status for the selected substitute. LT1253CS8#TRPBF and LT1253CS8#PBF both meet these requirements. Verify MSL 1 (Unlimited) rating for moisture-sensitive storage and handling protocols.