BA2903YFV-CE2 Equivalent & Substitute Parts

Part Overview

The BA2903YFV-CE2 is a dual general-purpose comparator manufactured by Rohm Semiconductor in an 8-SSOP surface-mount package. This device features open-collector output configuration and operates across a wide supply voltage range of 2V to 36V (single supply) or ±1V to ±18V (dual supply). The part is actively produced and carries AEC-Q100 automotive qualification, making it suitable for automotive and industrial applications requiring reliable comparison functionality.

Substitute parts are necessary when the original BA2903YFV-CE2 becomes unavailable due to supply constraints, end-of-life status, or when alternative packaging formats better suit specific manufacturing or assembly requirements.

Key Parameters

Parameter	BA2903YFV-CE2 Specification
Manufacturer	Rohm Semiconductor
Package Type	8-SSOP-B (0.173", 4.40mm Width)
Mounting Type	Surface Mount
Number of Elements	2
Output Type	Open-Collector
Supply Voltage Range	2V ~ 36V (Single), ±1V ~ 18V (Dual)
Input Offset Voltage (Max)	4mV @ 5V
Input Bias Current (Max)	0.25µA @ 5V
Output Current (Typ)	16mA @ 5V
Quiescent Current (Max)	1mA
Operating Temperature	-40°C ~ 125°C
Product Status	Active
Grade	Automotive
Qualification	AEC-Q100
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the BA2903YFV-CE2 is determined by the following critical parameters:

Functional Equivalence Requirements:

Dual comparator configuration (2 elements)
Open-collector output topology
General-purpose comparator classification

Electrical Compatibility Requirements:

Supply voltage range must encompass or match the original specification (2V ~ 36V single supply minimum)
Input offset voltage, input bias current, and output current must be within acceptable operational margins
Operating temperature range must support the application environment (-40°C minimum)

Physical and Manufacturing Requirements:

Surface-mount packaging (SSOP, MSOP, SOIC, or VSSOP variants acceptable)
Pin-compatible or functionally equivalent pinout
Compliance with RoHS and REACH regulations

Substitute parts are grouped by packaging format and electrical performance tier. Parts with reduced supply voltage ranges (2.5V ~ 5.5V or 2.7V ~ 5.5V) are suitable only for applications operating within these narrower windows. Parts with higher output current specifications (84mA vs. 16mA) represent enhanced performance variants.

Parameter Comparison

Part Number	Manufacturer	Package	Supply Voltage	Input Offset (Max)	Output Current (Typ)	Quiescent Current (Max)	Temp Range	Product Status
BA2903YFV-CE2	Rohm Semiconductor	8-SSOP-B	2V ~ 36V / ±1V ~ 18V	4mV @ 5V	16mA @ 5V	1mA	-40°C ~ 125°C	Active
AS393MMTR-G1	Diodes Incorporated	8-MSOP	2V ~ 36V / ±1V ~ 18V	5mV @ 5V	16mA @ 5V	1mA	-40°C ~ 85°C	Active
AS393MTR-E1	Diodes Incorporated	8-SOIC	2V ~ 36V / ±1V ~ 18V	5mV @ 5V	16mA @ 5V	1mA	-40°C ~ 85°C	Active
AS393P-E1	Diodes Incorporated	8-DIP	2V ~ 36V / ±1V ~ 18V	5mV @ 5V	16mA @ 5V	1mA	-40°C ~ 85°C	Active
AZV393MTR-G1	Diodes Incorporated	8-SOIC	2.5V ~ 5.5V	7mV @ 5V	84mA	200µA	-40°C ~ 85°C	Active
LMV393ID	Texas Instruments	8-SOIC	2.7V ~ 5.5V	7mV @ 5V	84mA @ 5V	250µA	-40°C ~ 85°C	Last Time Buy
LMV393IDDUR	Texas Instruments	8-VSSOP	2.7V ~ 5.5V	7mV @ 5V	84mA @ 5V	250µA	-40°C ~ 85°C	Last Time Buy
LMV393IDGKR	Texas Instruments	8-VSSOP	2.7V ~ 5.5V	7mV @ 5V	84mA @ 5V	250µA	-40°C ~ 85°C	Active
LMV393MM/NOPB	Texas Instruments	8-VSSOP	2.7V ~ 5.5V	7mV @ 5V	84mA @ 5V	300µA	-40°C ~ 85°C	Active
LMV393MMX/NOPB	Texas Instruments	8-VSSOP	2.7V ~ 5.5V	7mV @ 5V	84mA @ 5V	300µA	-40°C ~ 85°C	Active

Engineering Selection Recommendations

Tier 1 - Direct Electrical Equivalents (Preferred for Wide Supply Range Applications):

AS393MMTR-G1, AS393MTR-E1, and AS393P-E1 from Diodes Incorporated maintain the full 2V ~ 36V supply voltage range of the original BA2903YFV-CE2. These parts are actively produced and suitable for applications requiring extended supply voltage operation. The AS393 series exhibits marginally higher input offset voltage (5mV vs. 4mV) but remains within acceptable operational parameters. Selection between these three depends on packaging requirements: MSOP for compact surface-mount applications, SOIC for standard surface-mount, or DIP for through-hole assembly.

Tier 2 - Restricted Supply Range Substitutes (For Low-Voltage Applications Only):

AZV393MTR-G1, LMV393ID, LMV393IDDUR, LMV393IDGKR, LMV393MM/NOPB, and LMV393MMX/NOPB are suitable only for applications operating within 2.5V ~ 5.5V or 2.7V ~ 5.5V supply ranges. These parts offer enhanced output current capability (84mA vs. 16mA) and are appropriate for low-voltage consumer and industrial designs. LMV393IDGKR and LMV393MM/NOPB are actively produced; LMV393ID and LMV393IDDUR carry Last Time Buy status and should be avoided for new designs.

Compliance and Certification:

All recommended substitutes maintain ROHS3 compliance and REACH Unaffected status, matching the regulatory posture of the original BA2903YFV-CE2. The original part carries AEC-Q100 automotive qualification; substitute parts from Diodes Incorporated and Texas Instruments do not explicitly list automotive qualification in the provided data. For automotive applications requiring AEC-Q100 certification, the BA2903YFV-CE2 remains the specified choice.

Frequently Asked Questions (FAQ)

Q: Can AS393 series parts directly replace BA2903YFV-CE2 in automotive applications?

A: AS393 parts are functionally equivalent and maintain the same supply voltage range and output configuration. However, the BA2903YFV-CE2 carries explicit AEC-Q100 automotive qualification while AS393 parts do not list this certification in available documentation. For applications requiring automotive-grade components, the BA2903YFV-CE2 is the specified part.

Q: What is the difference between 8-SSOP, 8-MSOP, 8-SOIC, and 8-VSSOP packages?

A: These are all 8-pin surface-mount packages with different physical dimensions. SSOP (Shrink Small Outline Package) measures 0.173" width, MSOP (Mini Small Outline Package) measures 0.118" width, SOIC (Small Outline Integrated Circuit) measures 0.154" width, and VSSOP (Very Small Outline Package) measures 0.091" width. Package selection depends on PCB layout constraints and assembly equipment capabilities. All maintain identical pinout functionality.

Q: Why do LMV393 parts have higher output current (84mA) compared to BA2903YFV-CE2 (16mA)?

A: LMV393 variants represent a different performance tier within the general-purpose comparator category. The higher output current capability makes them suitable for driving heavier loads directly. However, this enhanced capability comes with restricted supply voltage range (2.7V ~ 5.5V maximum). Selection depends on application requirements for output drive capability versus supply voltage flexibility.

Q: Are LMV393ID and LMV393IDDUR suitable for new designs?

A: Both parts carry Last Time Buy status, indicating Texas Instruments has discontinued or will discontinue production. These parts should not be selected for new designs. Active alternatives include LMV393IDGKR, LMV393MM/NOPB, and LMV393MMX/NOPB from Texas Instruments, or AS393 series parts from Diodes Incorporated.

Q: What does MSL (Moisture Sensitivity Level) rating mean for component selection?

A: MSL rating indicates the maximum time a component can be exposed to ambient conditions before soldering. BA2903YFV-CE2 and most LMV393 variants carry MSL 1 (Unlimited), meaning no time restriction. AS393 series parts carry MSL 3 (168 Hours), requiring storage in dry conditions and limiting shelf life after packaging opening. For high-volume manufacturing with extended assembly timelines, MSL 1 rated parts are preferred.

Q: Can I use AS393P-E1 (through-hole DIP package) as a drop-in replacement for surface-mount BA2903YFV-CE2?

A: AS393P-E1 is functionally equivalent but requires different PCB layout and assembly process. Through-hole components cannot be directly substituted for surface-mount components without redesigning the PCB footprint and modifying assembly procedures. This substitution is viable only if the application design permits through-hole assembly.

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