LM2903FVM-TR Equivalent & Substitute Parts

Part Overview

The LM2903FVM-TR is a general-purpose dual comparator IC manufactured by Rohm Semiconductor in 8-MSOP surface mount packaging. This device is actively produced and widely used in analog signal conditioning and threshold detection applications. Substitute parts may be required due to supply constraints, manufacturing discontinuation, or specific application requirements that demand alternative electrical characteristics or packaging formats.

Key Parameters

Parameter	Value
Manufacturer Part Number	LM2903FVM-TR
Manufacturer	Rohm Semiconductor
Category	Linear
Type	General Purpose Comparator
Number of Elements	2
Package / Case	8-MSOP (0.110", 2.80mm Width)
Mounting Type	Surface Mount
Voltage - Supply, Single/Dual (±)	3V ~ 32V, ±1.5V ~ 16V
Voltage - Input Offset (Max)	4.5mV @ 1.4V
Current - Input Bias (Max)	0.25µA @ 5V
Current - Output (Typ)	16mA @ 5V
Current - Quiescent (Max)	1mA
Operating Temperature	-40°C ~ 125°C
Product Status	Active
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the LM2903FVM-TR are classified based on the following critical parameters that determine functional compatibility:

Primary Substitution Criteria:

Number of Elements: 2 (dual comparator configuration)
Type: General Purpose Comparator
Supply Voltage Range: Must overlap with 3V ~ 32V or ±1.5V ~ 16V
Input Offset Voltage: Maximum 7mV acceptable for most applications
Input Bias Current: 0.25µA maximum
Output Current: Minimum 16mA at 5V
Operating Temperature Range: Must support -40°C minimum
RoHS3 Compliance: Required for regulatory alignment
Packaging: Surface mount formats (8-MSOP, 8-SOIC, 8-VSSOP) or through-hole (8-DIP)

Substitute Categories:

Direct Package Equivalents (8-MSOP Surface Mount): AS393MMTR-G1, LMV393M8-13
Alternative Surface Mount Packages (8-SOIC, 8-VSSOP): LMV393MX/NOPB, LMV393MMX/NOPB, LMV393IDDUR
Through-Hole Alternative (8-DIP): AS393P-E1

Parameter Comparison

Parameter	LM2903FVM-TR	AS393MMTR-G1	AS393P-E1	LMV393IDDUR	LMV393M8-13	LMV393MMX/NOPB	LMV393MX/NOPB
Manufacturer	Rohm Semiconductor	Diodes Incorporated	Diodes Incorporated	Texas Instruments	Diodes Incorporated	Texas Instruments	Texas Instruments
Package / Case	8-MSOP (0.110", 2.80mm)	8-MSOP (0.118", 3.00mm)	8-DIP (0.300", 7.62mm)	8-VFSOP (0.091", 2.30mm)	8-MSOP (0.118", 3.00mm)	8-MSOP (0.118", 3.00mm)	8-SOIC (0.154", 3.90mm)
Mounting Type	Surface Mount	Surface Mount	Through Hole	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Number of Elements	2	2	2	2	2	2	2
Output Type	—	Open-Collector	Open-Collector	Open-Collector	Open-Collector	CMOS, Open-Collector, TTL	CMOS, Open-Collector, TTL
Voltage - Supply, Single/Dual (±)	3V ~ 32V, ±1.5V ~ 16V	2V ~ 36V, ±1V ~ 18V	2V ~ 36V, ±1V ~ 18V	2.7V ~ 5.5V	2.7V ~ 5.5V	2.7V ~ 5.5V	2.7V ~ 5.5V
Voltage - Input Offset (Max)	4.5mV @ 1.4V	5mV @ 5V	5mV @ 5V	7mV @ 5V	7mV @ 5V	7mV @ 5V	7mV @ 5V
Current - Input Bias (Max)	0.25µA @ 5V	0.25µA @ 5V	0.25µA @ 5V	0.25µA @ 5V	0.25µA @ 5V	0.25µA @ 5V	0.25µA @ 5V
Current - Output (Typ)	16mA @ 5V	16mA @ 5V	16mA @ 5V	84mA @ 5V	84mA	84mA @ 5V	84mA @ 5V
Current - Quiescent (Max)	1mA	1mA	1mA	250µA	200µA	300µA	300µA
Propagation Delay (Max)	—	—	—	600ns	600ns	600ns	600ns
Operating Temperature	-40°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 85°C
Product Status	Active	Active	Active	Last Time Buy	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	3 (168 Hours)	1 (Unlimited)	1 (Unlimited)	3 (168 Hours)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

AS393MMTR-G1 (Diodes Incorporated): Direct 8-MSOP surface mount equivalent with extended supply voltage range (2V ~ 36V). Suitable for applications requiring wider input voltage tolerance. Note MSL rating of 3 requires controlled storage conditions. Active product status ensures long-term availability.

AS393P-E1 (Diodes Incorporated): Through-hole 8-DIP package alternative for applications requiring manual assembly or breadboard prototyping. Extended supply voltage range matches AS393MMTR-G1. MSL rating of 1 provides unlimited shelf life. Active product status.

LMV393IDDUR (Texas Instruments): Narrow supply voltage range (2.7V ~ 5.5V) limits applicability to low-voltage systems. Higher output current (84mA) and propagation delay specification (600ns) suit faster switching applications. Last Time Buy status indicates discontinuation; use only if existing inventory is available and long-term supply is not required.

LMV393M8-13 (Diodes Incorporated): Narrow supply voltage range (2.7V ~ 5.5V) with extended operating temperature range (-40°C ~ 125°C) matching the LM2903FVM-TR. Higher output current (84mA) and specified propagation delay (600ns). Active product status. MSL rating of 3 requires controlled storage.

LMV393MMX/NOPB (Texas Instruments): 8-VSSOP compact surface mount package with narrow supply voltage range (2.7V ~ 5.5V). Higher output current (84mA) and propagation delay specification (600ns). Active product status with MSL rating of 1. Suitable for space-constrained designs.

LMV393MX/NOPB (Texas Instruments): 8-SOIC surface mount package with narrow supply voltage range (2.7V ~ 5.5V). Higher output current (84mA) and propagation delay specification (600ns). Active product status with MSL rating of 1. Larger package footprint than VSSOP alternatives.

Selection Constraints: Applications requiring supply voltages above 5.5V must use AS393MMTR-G1 or AS393P-E1. Applications requiring operating temperatures above 85°C must use LM2903FVM-TR or LMV393M8-13. Applications with MSL-sensitive manufacturing environments should prioritize parts with MSL rating of 1.

Frequently Asked Questions (FAQ)

Q: Can LMV393IDDUR replace LM2903FVM-TR in all applications?

A: No. LMV393IDDUR has a maximum supply voltage of 5.5V, while LM2903FVM-TR supports up to 32V single supply or ±16V dual supply. Use LMV393IDDUR only in applications operating within 2.7V ~ 5.5V range.

Q: What is the difference between AS393MMTR-G1 and LMV393M8-13?

A: AS393MMTR-G1 supports 2V ~ 36V supply voltage with 16mA output current and 1mA quiescent current. LMV393M8-13 supports 2.7V ~ 5.5V supply voltage with 84mA output current and 200µA quiescent current. AS393MMTR-G1 is suitable for wide-voltage applications; LMV393M8-13 is suitable for low-voltage, higher-current applications.

Q: Is AS393P-E1 suitable for surface mount assembly?

A: No. AS393P-E1 is packaged in 8-DIP through-hole format. For surface mount assembly, use AS393MMTR-G1, LMV393M8-13, LMV393MMX/NOPB, or LMV393MX/NOPB.

Q: Why is LMV393IDDUR marked as Last Time Buy?

A: Last Time Buy status indicates the manufacturer is discontinuing this part. Existing inventory may be available, but long-term supply cannot be guaranteed. For new designs, select from actively produced alternatives.

Q: What does MSL rating 3 mean for AS393MMTR-G1 and LMV393M8-13?

A: MSL 3 (168 Hours) means these parts can be exposed to moisture for a maximum of 168 hours at 85°C and 85% relative humidity before baking is required. Parts with MSL 1 (Unlimited) have no such restriction. For high-volume manufacturing with extended lead times, MSL 1 parts are preferred.

Q: Can I use LMV393MX/NOPB instead of LMV393MMX/NOPB?

A: Yes, both have identical electrical specifications. LMV393MX/NOPB uses 8-SOIC packaging (0.154" width), while LMV393MMX/NOPB uses 8-VSSOP packaging (0.118" width). Choose based on PCB layout requirements and available footprint space.

Q: What is the significance of the 600ns propagation delay in LMV393 variants?

A: Propagation delay specifies the time required for the output to respond to an input change. The 600ns specification in LMV393 variants is faster than the unspecified delay in LM2903FVM-TR, making LMV393 variants suitable for applications requiring faster switching response.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant, matching the compliance status of LM2903FVM-TR.

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