TLC27L1CD Equivalent & Substitute Parts

Part Overview

The TLC27L1CD is a general-purpose operational amplifier manufactured by Texas Instruments, part of the LinCMOS™ series. This device integrates a single amplifier circuit in an 8-SOIC surface-mount package and is designed for low-power applications requiring precision analog signal processing.

The TLC27L1CD is currently designated as Last Time Buy, indicating that Texas Instruments has discontinued or will discontinue production. This status necessitates identification of equivalent substitute components to ensure design continuity and supply chain reliability for existing applications and new designs.

Substiute Parts

TLC27L1CD

Texas InstrumentsIn Stock: 4006TLC27L1CD Datasheet

Current PartRFQ

TLC27L1CDR

Texas InstrumentsIn Stock: 806TLC27L1CDR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TLC27L1CD is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Amplifier Type: General Purpose
• Number of Circuits: 1
• Slew Rate: 0.05 V/µs
• Gain Bandwidth Product: 110 kHz
• Current - Input Bias: 0.7 pA
• Voltage - Input Offset: 1.1 mV
• Current - Supply: 14 µA
• Current - Output / Channel: 30 mA
• Voltage - Supply Span: 3 V to 16 V
• Operating Temperature Range: 0°C to 70°C

Mechanical Equivalence Criteria:

• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Mounting Type: Surface Mount

Compliance Equivalence Criteria:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• REACH Status: REACH Unaffected

Substitute parts must match all electrical, mechanical, and compliance parameters without exception. Packaging format (Tube versus Tape & Reel) does not affect functional equivalence but may impact procurement and handling procedures.

Parameter Comparison

Engineering Selection Recommendations

TLC27L1CDR as Primary Substitute:

The TLC27L1CDR is the direct functional equivalent of the TLC27L1CD. Both components share identical electrical specifications, mechanical packaging, and regulatory compliance certifications. The TLC27L1CDR differs only in packaging format (Tape & Reel versus Tube) and product lifecycle status (Active versus Last Time Buy).

Rationale for Substitution:

1. Electrical Equivalence: All analog performance parameters, including slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, and output current capacity, are identical.

2. Mechanical Compatibility: Both parts use the 8-SOIC surface-mount package with identical physical dimensions (0.154" width, 3.90mm). PCB footprints and assembly processes are interchangeable.

3. Regulatory Compliance: Both components maintain ROHS3 compliance, MSL Level 1 (unlimited moisture exposure), and REACH unaffected status, ensuring compatibility with current manufacturing and environmental standards.

4. Supply Continuity: The TLC27L1CDR maintains Active product status with current manufacturing availability, providing long-term supply security compared to the Last Time Buy status of the TLC27L1CD.

Packaging Consideration:

The TLC27L1CDR is supplied in Tape & Reel format, which is standard for automated assembly processes. Organizations currently using Tube packaging may require adjustment to receiving, storage, and component handling procedures. Tape & Reel format is compatible with standard pick-and-place equipment and offers improved efficiency for high-volume production.

Frequently Asked Questions (FAQ)

Q: Can TLC27L1CDR replace TLC27L1CD in existing designs without circuit modification?

A: Yes. The TLC27L1CDR is electrically and mechanically identical to the TLC27L1CD. No circuit design changes, PCB layout modifications, or firmware updates are required. Direct substitution is valid for all applications.

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 orders. Tape & Reel packaging supplies components on continuous carrier tape wound on reels, optimized for automated assembly equipment. Both formats contain identical components with identical electrical performance. The difference is logistical and procedural only.

Q: Why is TLC27L1CD designated as Last Time Buy?

A: Last Time Buy status indicates that Texas Instruments has announced the end of production for this part number. Existing inventory may be available for a limited time, but no new manufacturing runs are planned. The TLC27L1CDR, with Active status, represents the recommended path for continued supply.

Q: Are there any compliance or certification differences between TLC27L1CD and TLC27L1CDR?

A: No. Both components maintain identical RoHS3 compliance, MSL Level 1 rating, and REACH unaffected status. Regulatory and environmental certifications are equivalent.

Q: What is the current inventory status for TLC27L1CDR?

A: The TLC27L1CDR has 733 pieces of new original stock currently available. The TLC27L1CD has 3980 pieces in stock. Inventory levels are subject to change based on demand and supply conditions.

Q: Can I mix TLC27L1CD and TLC27L1CDR components in the same production batch?

A: Yes. Both components are functionally and mechanically identical. Mixed usage in the same production batch does not create compatibility, performance, or reliability issues. However, separate procurement and inventory management may be required due to different packaging formats.

Q: What is the base product number for both parts?

A: The base product number is TLC27L1. The suffix "CD" indicates the specific package and temperature range variant. Both TLC27L1CD and TLC27L1CDR share the same base product number and core design.