TLC339MDG4 Equivalent & Substitute Parts

Part Overview

The TLC339MDG4 is a general-purpose CMOS comparator with open-drain output, manufactured by Texas Instruments as part of the LinCMOS™ series. This 4-element comparator IC is housed in a 14-SOIC surface-mount package and operates across a supply voltage range of 4V to 16V. The device is currently in Last Time Buy status, indicating that production is being phased out. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain component availability for new production runs and field replacements.

Substiute Parts

TLC339MDG4

Texas InstrumentsIn Stock: 874TLC339MDG4 Datasheet

Current PartRFQ

TLC339MD

Texas InstrumentsIn Stock: 1165TLC339MD Datasheet

MFR RecommendedRFQ

TLC339MDR

Texas InstrumentsIn Stock: 1220TLC339MDR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLC339MDG4 is determined by strict equivalence across the following critical parameters:

• Number of Elements: 4 comparators per package
• Output Type: CMOS, Open-Drain configuration
• Supply Voltage Range: 4V ~ 16V
• Electrical Performance: Input offset voltage, input bias current, output current, quiescent current, CMRR, and propagation delay
• Package Type: 14-SOIC surface-mount package with identical physical dimensions (0.154", 3.90mm width)
• Operating Temperature Range: -55°C ~ 125°C
• Compliance Standards: ROHS3 Compliant, REACH Unaffected

The substitute parts identified below maintain identical electrical specifications and package compatibility with the TLC339MDG4, differing only in packaging format (Tube vs. Tape & Reel) and product lifecycle status.

Parameter Comparison

Engineering Selection Recommendations

TLC339MD (Tube Packaging)

The TLC339MD is electrically and mechanically identical to the TLC339MDG4, with the primary distinction being packaging format. Both are supplied in Tube packaging. The TLC339MD carries an Obsolete product status, indicating that this variant is no longer in active production. Selection of this part should be limited to applications requiring Tube packaging where inventory is available and lifecycle support is not a concern.

TLC339MDR (Tape & Reel Packaging)

The TLC339MDR is the recommended substitute for new designs and production applications. This part maintains identical electrical specifications and package dimensions to the TLC339MDG4 but is supplied in Tape & Reel (TR) format, which is standard for automated assembly processes. The TLC339MDR carries an Active product status, ensuring ongoing availability, manufacturing support, and compliance with current industry standards. This part is suitable for high-volume production and provides the longest lifecycle support among the available substitutes.

Frequently Asked Questions (FAQ)

Q: Can TLC339MD or TLC339MDR be used as direct replacements for TLC339MDG4?

A: Yes. Both substitute parts are electrically and mechanically identical to the TLC339MDG4. All three parts share identical electrical specifications, operating temperature range, supply voltage requirements, and 14-SOIC package dimensions. The differences are limited to packaging format (Tube vs. Tape & Reel) and product lifecycle status.

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

A: Tube packaging is used for manual handling and lower-volume applications, while Tape & Reel (TR) packaging is designed for automated pick-and-place assembly equipment. Both formats contain the same die and offer identical electrical performance. Selection depends on manufacturing process requirements and assembly equipment capabilities.

Q: Why is TLC339MDG4 in Last Time Buy status?

A: Last Time Buy status indicates that Texas Instruments is phasing out this specific packaging variant. Customers are advised to transition to the TLC339MDR (Active status) for new designs to ensure long-term availability and manufacturing support.

Q: Are there any compliance or certification differences between these parts?

A: No. All three parts are ROHS3 Compliant, REACH Unaffected, and carry identical moisture sensitivity levels (MSL 1 - Unlimited). Compliance certifications are equivalent across all variants.

Q: Which substitute should be selected for new production designs?

A: The TLC339MDR is the recommended choice for new production designs. It maintains Active product status, is supplied in standard Tape & Reel format for automated assembly, and provides the longest lifecycle support from Texas Instruments.