LM393TLX Equivalent & Substitute Parts

Part Overview

The LM393TLX is a dual general-purpose comparator manufactured by Texas Instruments, featuring open-collector, rail-to-rail output configuration in an 8-DSBGA surface-mount package. This device is classified as obsolete, which necessitates identification of active equivalent alternatives for new designs and ongoing production requirements. The LM393TLX maintains full electrical and mechanical compatibility with specified substitute parts while offering identical functional performance in comparator applications requiring low-power operation and wide supply voltage range.

Substiute Parts

LM393TLX

Texas InstrumentsIn Stock: 2468LM393TLX Datasheet

Current PartRFQ

LM393TL/NOPB

Texas InstrumentsIn Stock: 2334LM393TL/NOPB Datasheet

Parametric EquivalentRFQ

LM393TLX/NOPB

Texas InstrumentsIn Stock: 7183LM393TLX/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LM393TLX is determined by strict equivalence across all electrical and mechanical parameters. The substitute parts LM393TL/NOPB and LM393TLX/NOPB maintain identical specifications for supply voltage range (2V ~ 36V, ±1V ~ 18V), input offset voltage (5mV @ 30V), input bias current (0.25µA @ 5V), output current (16mA @ 5V), quiescent current (2.5mA), propagation delay (700ns), operating temperature range (0°C ~ 70°C), and package configuration (8-DSBGA). All three parts share the same base product number LM393 and are manufactured by Texas Instruments.

The key parameters enabling substitution are:

• Identical output type: Open-Collector, Rail-to-Rail
• Identical number of comparator elements: 2
• Identical supply voltage specifications
• Identical electrical performance characteristics
• Identical 8-DSBGA package and surface-mount configuration
• Identical REACH and ECCN classifications

Parameter Comparison

Engineering Selection Recommendations

The LM393TLX is classified as obsolete and should be replaced with active alternatives for new designs and production continuity. Both LM393TL/NOPB and LM393TLX/NOPB are active products manufactured by Texas Instruments and provide complete electrical and mechanical equivalence to the LM393TLX.

For applications requiring RoHS3 compliance, both substitute parts satisfy this requirement, whereas the original LM393TLX does not. The LM393TL/NOPB is supplied in Tape & Reel packaging with 2266 units in stock, while the LM393TLX/NOPB is also supplied in Tape & Reel packaging with 7100 units in stock. Both substitutes maintain identical performance specifications and package configuration, enabling direct replacement in existing circuit designs without modification to PCB layout or schematic topology.

Frequently Asked Questions (FAQ)

Q: Can LM393TL/NOPB and LM393TLX/NOPB be used interchangeably with LM393TLX?

A: Yes. All three parts share identical electrical specifications, output configuration, supply voltage range, and 8-DSBGA package. Pin-for-pin and functional compatibility is complete.

Q: What is the primary reason to substitute the LM393TLX?

A: The LM393TLX is classified as obsolete. The active alternatives LM393TL/NOPB and LM393TLX/NOPB ensure long-term supply availability and support for new production.

Q: Are there compliance differences between the original and substitute parts?

A: Yes. The LM393TLX is RoHS non-compliant, while both LM393TL/NOPB and LM393TLX/NOPB are ROHS3 compliant. Both substitutes maintain REACH Unaffected status identical to the original.

Q: Does the packaging differ between these parts?

A: The original LM393TLX packaging is not specified in the data. Both substitutes are supplied in Tape & Reel (TR) packaging in 8-DSBGA configuration. The 8-DSBGA package specification is identical across all three parts.

Q: What are the key electrical parameters that define substitution eligibility?

A: Supply voltage range (2V ~ 36V, ±1V ~ 18V), input offset voltage (5mV @ 30V), input bias current (0.25µA @ 5V), output current (16mA @ 5V), quiescent current (2.5mA), and propagation delay (700ns) are identical across all three parts.

Q: Are there inventory considerations for part selection?

A: LM393TL/NOPB has 2266 units in stock, while LM393TLX/NOPB has 7100 units in stock. Both are active products with established supply chains.