LM393TL Equivalent & Substitute Parts

Part Overview

The LM393TL 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 LM393TL maintains compatibility with applications requiring low-voltage operation (2V to 36V single supply, ±1V to ±18V dual supply) and general-purpose comparison functionality across industrial and consumer electronics.

Key Parameters

Parameter	Value
Manufacturer	Texas Instruments
Category	Linear - Comparator
Type	General Purpose
Number of Elements	2
Output Type	Open-Collector, Rail-to-Rail
Voltage Supply Range (Single/Dual)	2V ~ 36V / ±1V ~ 18V
Voltage - Input Offset (Max)	5mV @ 30V
Current - Input Bias (Max)	0.25µA @ 5V
Current - Output (Typ)	16mA @ 5V
Current - Quiescent (Max)	2.5mA
Propagation Delay (Max)	700ns
Operating Temperature	0°C ~ 70°C
Package / Case	8-WFBGA, DSBGA
Mounting Type	Surface Mount
Supplier Device Package	8-DSBGA
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the LM393TL is determined by strict equivalence across the following electrical and mechanical parameters:

Output Configuration: Open-Collector, Rail-to-Rail topology
Element Count: Dual comparator (2 elements)
Supply Voltage Range: 2V ~ 36V single supply and ±1V ~ ±18V dual supply
Input Offset Voltage: 5mV maximum at 30V
Input Bias Current: 0.25µA maximum at 5V
Output Current: 16mA typical at 5V
Quiescent Current: 2.5mA maximum
Propagation Delay: 700ns maximum
Package Type: 8-DSBGA surface-mount
Operating Temperature Range: 0°C ~ 70°C

The identified substitute parts LM393TL/NOPB and LM393TLX/NOPB maintain complete parametric equivalence to the main part number across all electrical specifications and mechanical packaging. Both substitutes are active products with improved compliance status.

Parameter Comparison

Parameter	LM393TL	LM393TL/NOPB	LM393TLX/NOPB
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments
Type	General Purpose	General Purpose	General Purpose
Number of Elements	2	2	2
Output Type	Open-Collector, Rail-to-Rail	Open-Collector, Rail-to-Rail	Open-Collector, Rail-to-Rail
Voltage Supply (Single/Dual)	2V ~ 36V / ±1V ~ 18V	2V ~ 36V / ±1V ~ 18V	2V ~ 36V / ±1V ~ 18V
Input Offset Voltage (Max)	5mV @ 30V	5mV @ 30V	5mV @ 30V
Input Bias Current (Max)	0.25µA @ 5V	0.25µA @ 5V	0.25µA @ 5V
Output Current (Typ)	16mA @ 5V	16mA @ 5V	16mA @ 5V
Quiescent Current (Max)	2.5mA	2.5mA	2.5mA
Propagation Delay (Max)	700ns	700ns	700ns
Operating Temperature	0°C ~ 70°C	0°C ~ 70°C	0°C ~ 70°C
Package / Case	8-WFBGA, DSBGA	8-WFBGA, DSBGA	8-WFBGA, DSBGA
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Supplier Device Package	8-DSBGA	8-DSBGA	8-DSBGA
Product Status	Obsolete	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging Type	Bulk	Tape & Reel (TR)	Tape & Reel (TR)

Engineering Selection Recommendations

Both LM393TL/NOPB and LM393TLX/NOPB are direct parametric equivalents suitable for replacing the obsolete LM393TL in new designs and production applications. Selection between the two active alternatives should be based on inventory availability and supply chain requirements.

LM393TL/NOPB is recommended for applications where standard production volumes and standard lead times are acceptable, with 2266 units currently in stock.

LM393TLX/NOPB is recommended for applications requiring higher inventory availability, with 7100 units currently in stock, providing extended supply security for high-volume production runs.

Both substitute parts carry ROHS3 compliance certification, addressing regulatory requirements that the obsolete LM393TL does not meet. Both maintain identical electrical performance and mechanical compatibility with the original part number across all specified parameters.

Frequently Asked Questions (FAQ)

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

A: Yes. Both substitute parts maintain complete electrical and mechanical equivalence to LM393TL across all specified parameters, including supply voltage range, input offset voltage, bias current, output current, propagation delay, and 8-DSBGA package configuration. Pin-for-pin compatibility is maintained.

Q: What is the difference between LM393TL/NOPB and LM393TLX/NOPB?

A: Both parts are parametrically identical. The primary differences are packaging format (both supplied in Tape & Reel) and inventory availability. LM393TLX/NOPB has higher stock levels (7100 units versus 2266 units), making it preferable for high-volume production requirements.

Q: Why is the original LM393TL classified as obsolete?

A: The LM393TL is marked obsolete by Texas Instruments. The active equivalents LM393TL/NOPB and LM393TLX/NOPB represent the current production alternatives and are recommended for all new designs.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both LM393TL/NOPB and LM393TLX/NOPB carry ROHS3 compliance certification. The original LM393TL is RoHS non-compliant, making the substitutes necessary for applications subject to RoHS regulatory requirements.

Q: What is the significance of the "/NOPB" suffix?

A: The "/NOPB" suffix indicates the part is supplied without plumbum (lead-free), confirming RoHS3 compliance and environmental regulatory adherence.

Q: Are there any thermal or performance differences between the substitute parts and the original?

A: No. All electrical parameters, including propagation delay (700ns maximum), quiescent current (2.5mA maximum), and operating temperature range (0°C ~ 70°C), are identical across all three part numbers.

Q: What packaging format is used for the substitute parts?

A: Both LM393TL/NOPB and LM393TLX/NOPB are supplied in Tape & Reel (TR) format, suitable for automated assembly processes. The original LM393TL was supplied in bulk packaging.

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