TLC271CD Equivalent & Substitute Parts

Part Overview

The TLC271CD is a general-purpose operational amplifier manufactured by Texas Instruments in the LinCMOS™ series. This device integrates one amplifier circuit in an 8-SOIC surface-mount package and operates across a 3V to 16V supply voltage range with an operating temperature range of 0°C to 70°C. The TLC271CD is designated as Last Time Buy, indicating discontinued production status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for applications currently utilizing this component.

Substiute Parts

TLC271CD

Texas InstrumentsIn Stock: 300386TLC271CD Datasheet

Current PartRFQ

TLC271CDR

Texas InstrumentsIn Stock: 46001TLC271CDR Datasheet

MFR RecommendedRFQ

TLC27L1CS-13

Diodes IncorporatedIn Stock: 3636TLC27L1CS-13 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TLC271CD are identified based on strict electrical and mechanical parameter compatibility. The primary substitution criteria are:

Electrical Compatibility Parameters:

• Supply voltage range: 3V to 16V minimum and maximum
• Number of circuits: 1 amplifier circuit
• Output current capability: 30 mA per channel minimum
• Input bias current: 0.7 pA
• Package type: 8-SOIC surface-mount configuration
• Operating temperature range: 0°C to 70°C

Mechanical Compatibility Parameters:

• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Mounting type: Surface Mount
• Supplier device package: 8-SOIC or 8-SO

Compliance Parameters:

• RoHS3 Compliant status
• Moisture Sensitivity Level: 1 (Unlimited)

Parts meeting all electrical, mechanical, and compliance requirements are classified as direct substitutes. Variations in slew rate, gain bandwidth product, and input offset voltage do not disqualify substitution when all primary parameters align.

Parameter Comparison

Engineering Selection Recommendations

TLC271CDR (Texas Instruments): TLC271CDR is a direct electrical and mechanical equivalent to TLC271CD, differing only in packaging format (Cut Tape & Digi-Reel® versus Tube). Both parts share identical electrical specifications including slew rate (5.3V/µs), gain bandwidth product (2.2 MHz), and supply current (950µA). Both are designated Last Time Buy status. TLC271CDR is recommended as the primary substitute when tube packaging is not a requirement. Current inventory of 45,950 pieces supports sustained availability.

TLC27L1CS-13 (Diodes Incorporated): TLC27L1CS-13 meets all mandatory electrical and mechanical compatibility criteria: 8-SOIC package, 3V to 16V supply range, 0°C to 70°C operating temperature, 30 mA output current, and 0.7 pA input bias current. This part is manufactured by Diodes Incorporated and maintains Active product status, providing long-term supply assurance. Performance characteristics differ in slew rate (0.04V/µs versus 5.3V/µs), gain bandwidth product (110 kHz versus 2.2 MHz), supply current (14µA versus 950µA), and input offset voltage (10 mV versus 1.1 mV). These differences reflect CMOS amplifier architecture versus general-purpose design. TLC27L1CS-13 is suitable for applications where lower power consumption and slower signal processing are acceptable. Current inventory of 3,600 pieces is available.

Both substitute parts maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can TLC271CDR be used as a direct replacement for TLC271CD in existing designs?

A: Yes. TLC271CDR is electrically and mechanically identical to TLC271CD. The only difference is packaging format: TLC271CD is supplied in Tube packaging, while TLC271CDR is supplied in Cut Tape & Digi-Reel® format. Both parts are manufactured by Texas Instruments, share the same base product number (TLC271), and have identical electrical specifications. PCB layout and circuit design require no modification.

Q: What are the key differences between TLC271CDR and TLC27L1CS-13?

A: Both parts are mechanically compatible (8-SOIC package, surface mount) and operate within the same supply voltage range (3V to 16V) and temperature range (0°C to 70°C). Electrical differences include: TLC271CDR has a slew rate of 5.3V/µs and gain bandwidth product of 2.2 MHz with 950µA supply current; TLC27L1CS-13 has a slew rate of 0.04V/µs and gain bandwidth product of 110 kHz with 14µA supply current. TLC27L1CS-13 is a CMOS amplifier designed for low-power applications, while TLC271CDR is a general-purpose amplifier. Selection depends on application bandwidth and power consumption requirements.

Q: Is TLC27L1CS-13 suitable for high-frequency signal processing applications?

A: No. TLC27L1CS-13 has a gain bandwidth product of 110 kHz, which is significantly lower than TLC271CDR (2.2 MHz). Applications requiring bandwidth above 110 kHz should use TLC271CDR or TLC271CD. TLC27L1CS-13 is appropriate for low-frequency signal conditioning, sensor interfaces, and low-power analog circuits where bandwidth requirements do not exceed 110 kHz.

Q: Are all three parts RoHS3 compliant?

A: Yes. TLC271CD, TLC271CDR, and TLC27L1CS-13 are all ROHS3 Compliant and have Moisture Sensitivity Level 1 (Unlimited). All parts meet current environmental and reliability standards for industrial and commercial applications.

Q: What is the difference between Tube and Cut Tape & Digi-Reel® packaging?

A: Tube packaging (TLC271CD) is used for lower-volume orders and manual handling. Cut Tape & Digi-Reel® packaging (TLC271CDR) is used for automated assembly lines and higher-volume production. The electrical and mechanical specifications of the component are identical; packaging format affects only handling, storage, and assembly process compatibility.

Q: Why is TLC271CD marked as Last Time Buy?

A: Last Time Buy status indicates that Texas Instruments has discontinued production of this part. Existing inventory is available for purchase, but no new production runs are planned. TLC271CDR (same manufacturer, same specifications, different packaging) and TLC27L1CS-13 (alternative manufacturer, compatible specifications) are recommended for new designs or long-term supply planning.

Q: Can TLC27L1CS-13 be used in applications currently using TLC271CD without circuit modification?

A: Mechanical and electrical compatibility (package, supply voltage, temperature range, output current) allow direct PCB substitution. However, circuit performance will differ due to lower bandwidth (110 kHz versus 2.2 MHz) and higher input offset voltage (10 mV versus 1.1 mV). Applications sensitive to these parameters require circuit re-evaluation and potential redesign. Low-frequency applications with relaxed offset voltage tolerance can use TLC27L1CS-13 without modification.

Q: What inventory levels are available for each substitute part?

A: TLC271CD (main part): 300,300 pieces. TLC271CDR: 45,950 pieces. TLC27L1CS-13: 3,600 pieces. Inventory levels support component selection based on application volume and timeline requirements.