TLC274CDBR Equivalent & Substitute Parts

Part Overview

The TLC274CDBR is a general-purpose operational amplifier integrated circuit manufactured by Texas Instruments, configured as a 4-circuit device in a 14-SSOP surface mount package. This component is classified as a Last Time Buy product, indicating discontinued production with limited remaining inventory of 2502 pieces. The TLC274CDBR serves applications requiring low-power, general-purpose amplification across industrial, consumer, and embedded system designs. Identification of equivalent substitute parts becomes necessary due to product discontinuation status and to ensure long-term supply chain continuity for ongoing production requirements.

Substiute Parts

TLC274CDBR

Texas InstrumentsIn Stock: 2539TLC274CDBR Datasheet

Current PartRFQ

TLC274CDR

Texas InstrumentsIn Stock: 25224TLC274CDR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TLC274CDBR is determined by electrical and mechanical parameter equivalence within the TLC274 base product family. The primary substitute identified is the TLC274CDR, which maintains identical electrical specifications across all critical performance parameters: slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, output current capability, and supply voltage range. Both devices operate within the same temperature range (0°C to 70°C) and share identical RoHS3 compliance and moisture sensitivity classifications.

The key differentiator between these parts is packaging format. The TLC274CDBR utilizes 14-SSOP (Small Shrink Outline Package) with 5.30mm width, while the TLC274CDR is supplied in 14-SOIC (Small Outline Integrated Circuit) with 3.90mm width. Both are surface mount packages with compatible pinout configurations for the TLC274 base product. The TLC274CDR maintains Active product status with significantly higher inventory availability (25200 pieces), contrasting with the Last Time Buy status of the TLC274CDBR.

Substitution is valid when circuit board layout accommodates the alternative package footprint and when supply chain continuity is prioritized over existing inventory depletion.

Parameter Comparison

Engineering Selection Recommendations

Selection between TLC274CDBR and TLC274CDR is determined by three primary factors: package footprint compatibility, supply availability, and product lifecycle status.

Package Footprint Consideration: The TLC274CDBR (14-SSOP, 5.30mm) and TLC274CDR (14-SOIC, 3.90mm) require different printed circuit board layouts. Existing designs utilizing 14-SSOP footprints cannot directly accommodate 14-SOIC packages without circuit board redesign. Conversely, new designs or redesign initiatives can adopt the 14-SOIC format.

Supply Continuity: The TLC274CDBR carries Last Time Buy status with 2502 pieces in stock, indicating production discontinuation. The TLC274CDR maintains Active product status with 25200 pieces available, providing extended supply assurance for long-term production requirements.

Compliance Alignment: Both parts maintain identical ROHS3 compliance, REACH unaffected status, and moisture sensitivity classifications, ensuring regulatory and environmental requirement satisfaction across either selection.

For applications where circuit board redesign is feasible and long-term supply continuity is required, the TLC274CDR is the appropriate selection. For existing designs with committed 14-SSOP footprints and near-term production windows, the TLC274CDBR remains viable until inventory depletion.

Frequently Asked Questions (FAQ)

Q: Can TLC274CDR directly replace TLC274CDBR without circuit board modification?

A: Electrical substitution is complete; however, package footprint differences require circuit board layout modification. The TLC274CDBR uses 14-SSOP (5.30mm width) while TLC274CDR uses 14-SOIC (3.90mm width). Direct socket compatibility does not exist. PCB redesign is necessary for physical implementation.

Q: What are the electrical performance differences between these parts?

A: No electrical performance differences exist. Both devices share identical 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 per 4 channels), output current (30 mA per channel), and supply voltage range (3V to 16V).

Q: Why is TLC274CDBR classified as Last Time Buy?

A: Last Time Buy status indicates Texas Instruments has discontinued production of this specific part number variant. Existing inventory will be depleted without replenishment. The TLC274CDR remains in active production as the current supply option.

Q: Are packaging format differences significant for component handling?

A: Yes. TLC274CDBR is supplied in Tape & Reel (TR) format, while TLC274CDR is available in Cut Tape (CT) and Digi-Reel® formats. These differences affect automated assembly equipment compatibility, component feeding mechanisms, and storage requirements. Verify assembly line capability before selection.

Q: Do both parts meet the same regulatory and environmental standards?

A: Yes. Both TLC274CDBR and TLC274CDR are ROHS3 compliant, REACH unaffected, and classified as Moisture Sensitivity Level 1 (unlimited). Regulatory and environmental requirements are satisfied by either part.

Q: What is the recommended approach for new product designs?

A: New designs should specify TLC274CDR to ensure long-term supply availability and active manufacturer support. The Active product status and higher inventory levels provide supply chain stability beyond the Last Time Buy window of TLC274CDBR.

Q: Can circuit board designs accommodate both package types?

A: No. 14-SSOP and 14-SOIC packages have different footprint geometries and pin spacing. A single PCB design accommodates one package type. Dual-footprint designs are possible but require additional board area and design complexity.