TLE2021CDG4 Equivalent & Substitute Parts

Part Overview

The TLE2021CDG4 is a general-purpose operational amplifier manufactured by Texas Instruments, part of the Excalibur™ series. This device integrates one amplifier circuit in an 8-SOIC surface mount package and is designed for applications requiring low-power, general-purpose amplification with moderate bandwidth characteristics.

The TLE2021CDG4 carries a Last Time Buy product status, indicating that Texas Instruments has discontinued this part number and will no longer manufacture it after existing inventory is depleted. This status necessitates identification of equivalent substitute parts to ensure design continuity and procurement availability for ongoing production and maintenance applications.

Substiute Parts

TLE2021CDG4

Texas InstrumentsIn Stock: 690TLE2021CDG4 Datasheet

Current PartRFQ

TLE2021CDR

Texas InstrumentsIn Stock: 21600TLE2021CDR Datasheet

MFR RecommendedRFQ

TLE2021CD

Texas InstrumentsIn Stock: 1144TLE2021CD Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLE2021CDG4 is determined by strict equivalence across all electrical and mechanical parameters. The substitute parts identified—TLE2021CDR and TLE2021CD—share the same base product number (TLE2021) and maintain identical electrical specifications across all measured parameters: slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, output current capability, and supply voltage range.

The primary distinction between these parts lies in packaging format and product status:

Packaging Differentiation: The TLE2021CDG4 is supplied in Tube packaging, while TLE2021CDR is supplied in Tape & Reel (TR) format. Both maintain the identical 8-SOIC physical package footprint (0.154", 3.90mm Width), ensuring mechanical and electrical compatibility on printed circuit boards.

Product Status Differentiation: The TLE2021CDG4 carries Last Time Buy status, whereas TLE2021CDR carries Active status, indicating ongoing manufacturing availability. The TLE2021CD also carries Last Time Buy status but maintains higher inventory levels (1112 Pcs) compared to TLE2021CDG4 (675 Pcs).

All three parts are ROHS3 compliant, REACH unaffected, and carry identical MSL ratings.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: TLE2021CDR

The TLE2021CDR is the preferred substitute for the TLE2021CDG4. This part maintains complete electrical equivalence across all specified parameters and carries Active product status, ensuring long-term manufacturing availability and supply chain continuity. The Tape & Reel packaging format is standard for high-volume production environments and automated assembly processes. Current inventory of 21,568 units provides substantial procurement security.

Secondary Recommendation: TLE2021CD

The TLE2021CD serves as an alternative substitute when Tube packaging is required for specific assembly or handling procedures. This part maintains identical electrical specifications and ROHS3 compliance. However, Last Time Buy status indicates limited future availability, and current inventory (1,112 units) is lower than TLE2021CDR. This part is suitable for near-term replacement but should not be selected for long-term production planning.

Compliance Considerations

All three parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory compatibility across industrial and commercial applications. MSL rating of 1 (Unlimited) indicates no moisture sensitivity restrictions during storage or handling.

Frequently Asked Questions (FAQ)

Q: Can TLE2021CDR be used as a direct replacement for TLE2021CDG4 in existing designs?

A: Yes. The TLE2021CDR is electrically and mechanically equivalent to the TLE2021CDG4. Both parts share identical electrical specifications, the same 8-SOIC package footprint, and surface mount mounting type. The only difference is packaging format (Tape & Reel versus Tube), which does not affect circuit performance or PCB assembly compatibility.

Q: What is the difference between Tube and Tape & Reel packaging?

A: Tube packaging supplies components in plastic tubes suitable for manual handling and small-quantity assembly. Tape & Reel packaging supplies components on continuous carrier tape wound on reels, optimized for automated pick-and-place assembly equipment. Both formats contain identical components with identical electrical performance. Selection depends on assembly process requirements, not circuit functionality.

Q: Why is TLE2021CDG4 marked as Last Time Buy?

A: Last Time Buy status indicates that Texas Instruments has discontinued this part number and will not manufacture additional units after current inventory is exhausted. This status necessitates transition to an equivalent part number to ensure continued supply. TLE2021CDR, carrying Active status, is the recommended long-term replacement.

Q: Are there any electrical performance differences between TLE2021CDG4, TLE2021CDR, and TLE2021CD?

A: No. All three parts are electrically identical. They share identical slew rate (0.65 V/µs), gain bandwidth product (2 MHz), input bias current (25 nA), input offset voltage (150 µV), supply current (240 µA), output current (20 mA), and supply voltage range (4 V to 40 V). Electrical performance is determined by the base product number (TLE2021), not the packaging suffix.

Q: Can I mix TLE2021CDR and TLE2021CDG4 in the same production batch?

A: Yes. Both parts are electrically and mechanically equivalent and can be used interchangeably on the same PCB design. However, mixing packaging formats may complicate inventory management and assembly procedures. For production consistency, standardizing on a single part number is recommended.

Q: What compliance certifications apply to these substitute parts?

A: All three parts are ROHS3 compliant and REACH unaffected. MSL rating is 1 (Unlimited), indicating no moisture sensitivity restrictions. These certifications ensure regulatory compliance across industrial, commercial, and consumer applications.

Q: Is TLE2021CD a viable long-term substitute?

A: TLE2021CD is suitable for near-term replacement but carries Last Time Buy status, indicating limited future availability. For long-term production planning and supply chain security, TLE2021CDR (Active status) is the recommended choice.