TLC274CNS Equivalent & Substitute Parts

Part Overview

The TLC274CNS is a general-purpose operational amplifier integrated circuit manufactured by Texas Instruments, featuring four independent amplifier circuits in a 14-SO surface mount package. This device is classified as Last Time Buy, indicating discontinued production with limited remaining inventory. The TLC274CNS serves applications requiring low-power, general-purpose amplification across industrial, consumer, and embedded system designs.

Identification of equivalent and substitute parts is necessary due to the Last Time Buy status of the TLC274CNS. Sourcing alternative configurations ensures design continuity and long-term supply chain reliability for applications currently utilizing this component.

Substiute Parts

TLC274CNS

Texas InstrumentsIn Stock: 1262TLC274CNS Datasheet

Current PartRFQ

TLC274CDR

Texas InstrumentsIn Stock: 25224TLC274CDR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLC274CNS is determined by electrical and mechanical parameter equivalence. The following criteria establish valid substitution:

Electrical Equivalence Requirements:

• Amplifier Type: General Purpose
• Number of Circuits: 4 channels
• Slew Rate: 3.6 V/µs
• Gain Bandwidth Product: 2.2 MHz
• Current - Input Bias: 0.6 pA
• Voltage - Input Offset: 1.1 mV
• Current - Supply: 2.7 mA (x4 Channels)
• Current - Output per Channel: 30 mA
• Voltage - Supply Span: 3 V (Min) to 16 V (Max)
• Operating Temperature: 0°C to 70°C

Mechanical and Compliance Requirements:

• Mounting Type: Surface Mount
• Base Product Number: TLC274
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)
• REACH Status: REACH Unaffected

The TLC274CDR qualifies as a manufacturer-recommended substitute based on identical electrical specifications and full compliance with regulatory requirements. The primary distinction lies in packaging configuration and product status.

Parameter Comparison

Engineering Selection Recommendations

The TLC274CDR is the manufacturer-recommended substitute for the TLC274CNS. Selection between these parts is determined by supply chain and packaging requirements rather than electrical performance.

TLC274CNS Selection Criteria:

• Existing inventory in Tube packaging format
• Applications with established procurement processes for Tube-packaged components
• Last Time Buy status requires immediate sourcing decisions for long-term supply planning

TLC274CDR Selection Criteria:

• Active product status ensures ongoing availability and long-term supply chain stability
• Cut Tape (CT) and Digi-Reel® packaging supports automated assembly processes
• Recommended for new designs and production transitions
• Higher inventory availability (25,200 pcs vs. 1,217 pcs) supports volume production requirements

Both parts maintain identical electrical specifications, regulatory compliance (ROHS3, REACH Unaffected), and operational characteristics across the 0°C to 70°C temperature range. Package case dimensions differ (0.209" vs. 0.154" width), requiring PCB layout verification during substitution.

Frequently Asked Questions (FAQ)

Q: Are the TLC274CNS and TLC274CDR electrically interchangeable?

A: Yes. Both devices share identical electrical specifications including slew rate (3.6 V/µs), gain bandwidth product (2.2 MHz), input bias current (0.6 pA), input offset voltage (1.1 mV), supply current (2.7 mA total), output current per channel (30 mA), and supply voltage range (3 V to 16 V). Operating temperature range is identical (0°C to 70°C).

Q: What is the primary difference between these parts?

A: The TLC274CNS is Last Time Buy with Tube packaging, while the TLC274CDR is Active with Cut Tape (CT) and Digi-Reel® packaging. The 14-SOIC package case width differs: 0.209" (5.30mm) for TLC274CNS versus 0.154" (3.90mm) for TLC274CDR.

Q: Does the package case width difference affect PCB compatibility?

A: PCB layout verification is required. The 0.154" width of the TLC274CDR represents a narrower package footprint compared to the 0.209" width of the TLC274CNS. Existing PCB designs must be evaluated for pad spacing and component placement compatibility.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both the TLC274CNS and TLC274CDR are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements.

Q: Which part should be selected for new designs?

A: The TLC274CDR is recommended for new designs due to Active product status, ensuring long-term availability and supply chain continuity. The TLC274CNS Last Time Buy status indicates limited remaining inventory.

Q: What is the Moisture Sensitivity Level for both parts?

A: Both parts have Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions during storage, handling, or assembly.