LBT-LM2902DRG4 Equivalent & Substitute Parts

Part Overview

The LBT-LM2902DRG4 is a general-purpose operational amplifier integrated circuit manufactured by Texas Instruments. This component is classified as a Last Time Buy product, indicating that the manufacturer has discontinued or will discontinue production. The part is ROHS3 compliant with a Moisture Sensitivity Level (MSL) of 3, requiring controlled storage conditions of 168 hours maximum exposure to ambient humidity before soldering.

Due to its Last Time Buy status, identifying equivalent substitute parts is essential for design continuity, long-term supply chain planning, and production sustainability. The LM2902DR serves as the primary substitute, offering compatible electrical and mechanical characteristics suitable for direct replacement in most applications.

Substiute Parts

LBT-LM2902DRG4

Texas InstrumentsIn Stock: 884LBT-LM2902DRG4 Datasheet

Current PartRFQ

LM2902DR

Rohm SemiconductorIn Stock: 90244LM2902DR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LBT-LM2902DRG4 is determined by the following critical parameters:

Electrical Compatibility:

• Amplifier Type: General Purpose
• Number of Circuits: 4
• Slew Rate: 0.3 V/µs
• Gain Bandwidth Product: 1.2 MHz
• Current - Input Bias: 20 nA
• Voltage - Input Offset: 1 mV
• Current - Supply: 1 mA
• Current - Output / Channel: 30 mA
• Voltage - Supply Span: 3 V to 32 V
• Operating Temperature Range: -40°C to 125°C

Mechanical Compatibility:

• Mounting Type: Surface Mount
• Package / Case: 14-SOIC (0.154", 3.90 mm Width)

Compliance Requirements:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: Controlled environment storage required

The LM2902DR from Rohm Semiconductor meets all specified electrical and mechanical parameters, making it a direct functional equivalent for the LBT-LM2902DRG4.

Parameter Comparison

Engineering Selection Recommendations

The LM2902DR is the appropriate substitute for the LBT-LM2902DRG4 based on the following factors:

Compliance Alignment: Both parts maintain ROHS3 compliance, ensuring regulatory requirements are met in manufacturing and deployment environments.

Product Status Consideration: While the LBT-LM2902DRG4 is designated Last Time Buy, the LM2902DR is classified as Obsolete. This distinction indicates that the LM2902DR may have limited future availability. Design teams should evaluate long-term supply requirements and consider inventory planning accordingly.

Moisture Sensitivity Management: The LBT-LM2902DRG4 requires MSL 3 handling (168-hour maximum exposure), whereas the LM2902DR specifies MSL 1 (unlimited exposure). The LM2902DR offers superior moisture tolerance, reducing storage and handling constraints during manufacturing.

Electrical and Mechanical Equivalence: All critical electrical parameters, including slew rate, gain bandwidth product, input bias current, and supply voltage range, are identical between the two parts. The 14-SOIC package footprint is identical, enabling direct PCB layout compatibility without redesign.

Frequently Asked Questions (FAQ)

Q: Can the LM2902DR be used as a direct replacement for the LBT-LM2902DRG4 without circuit modifications?

A: Yes. The LM2902DR provides identical electrical performance across all specified parameters, including slew rate, bandwidth, input bias current, and supply voltage range. The 14-SOIC package footprint is identical, permitting direct substitution on existing PCB layouts without circuit redesign.

Q: What is the difference between Last Time Buy and Obsolete product status?

A: Last Time Buy indicates the manufacturer will accept orders for a limited period before discontinuing production. Obsolete status indicates production has already ceased. Both statuses necessitate alternative sourcing strategies, though Last Time Buy parts may have residual inventory availability.

Q: Does the improved moisture sensitivity of the LM2902DR affect circuit performance?

A: No. Moisture Sensitivity Level (MSL) classification pertains to storage and handling requirements prior to soldering, not post-assembly performance. The LM2902DR's MSL 1 rating (unlimited exposure) simplifies warehouse management and reduces risk of moisture-induced soldering defects compared to the MSL 3 requirement of the LBT-LM2902DRG4.

Q: Are there any supply chain considerations when transitioning from LBT-LM2902DRG4 to LM2902DR?

A: Both parts are classified as either Last Time Buy or Obsolete, indicating limited future availability. Current inventory of the LM2902DR is reported at 90,223 units. Design teams should verify long-term supply commitments with component distributors and establish inventory buffers for production continuity.

Q: What package options are available for the LM2902 base product family?

A: The LM2902 base product is available in the 14-SOIC (0.154", 3.90 mm Width) surface-mount package. This is the standard package for both the LBT-LM2902DRG4 and LM2902DR substitute.