BA2903SFV-E2 Equivalent & Substitute Parts

Part Overview

The BA2903SFV-E2 is a dual general-purpose comparator manufactured by ROHM Semiconductor in 8-SSOP-B surface mount packaging. This device features open-collector output configuration and operates across a wide supply voltage range of 2V to ±18V. The part is currently active in production with 6280 units in stock inventory.

Substitute parts are necessary when the BA2903SFV-E2 becomes unavailable, when alternative packaging formats are required for manufacturing optimization, or when design requirements call for enhanced operating temperature ranges or automotive-grade qualification. The substitute parts listed maintain functional equivalence through matching electrical parameters and compatible package footprints.

Key Parameters

Parameter	BA2903SFV-E2 Specification
Manufacturer	ROHM Semiconductor
Category	Linear Comparator
Type	General Purpose
Number of Elements	2
Output Type	Open-Collector
Voltage Supply Range	2V, ±1V ~ 36V, ±18V
Input Offset Voltage (Max)	7mV @ 5V
Input Bias Current (Max)	0.25µA @ 1.4V
Output Current (Typ)	16mA @ 5V
Quiescent Current (Max)	1mA
Propagation Delay (Max)	400ns (Typ)
Operating Temperature	-40°C ~ 105°C
Package / Case	8-LSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
Supplier Device Package	8-SSOP-B
Product Status	Active
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the BA2903SFV-E2 are classified into two categories based on electrical and mechanical compatibility:

Upgrade Substitutes maintain full functional equivalence with identical or superior electrical characteristics and compatible 8-TSSOP packaging. These parts satisfy the core substitution criteria: dual general-purpose comparator configuration, open-collector output, matching supply voltage ranges, equivalent input offset voltage specifications, and surface mount compatibility. Upgrade substitutes include LM2903PWR, LM2903PWRG3, LM2903QPWRG4Q1, LM2903QPWRQ1, LM2903VQPWR, LM2903VQPWRG4Q1, and LM2903VQPWRQ1 from Texas Instruments and ROHM Semiconductor.

Similar Substitutes provide functional equivalence with minor parameter variations that remain within acceptable design tolerances. These parts maintain the dual comparator configuration and open-collector output but operate within more restricted supply voltage ranges or different package formats. Similar substitutes include AZV393MMTR-G1 (Diodes Incorporated, 8-MSOP package) and LMV393IPWR (National Semiconductor, 8-TSSOP package).

Key parameters determining substitution eligibility: number of elements (2), output type (open-collector), package compatibility (8-pin surface mount), supply voltage overlap, input offset voltage specification, and operating temperature range.

Parameter Comparison

Parameter	BA2903SFV-E2	LM2903PWR	LM2903PWRG3	LM2903QPWRG4Q1	LM2903QPWRQ1	LM2903VQPWR	LM2903VQPWRG4Q1	LM2903VQPWRQ1	AZV393MMTR-G1	LMV393IPWR
Manufacturer	ROHM	TI	TI	TI	TI	ROHM	TI	TI	Diodes Inc	National Semi
Type	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose
Number of Elements	2	2	2	2	2	2	2	2	2	2
Output Type	Open-Collector	Open-Collector, Rail-to-Rail	Open-Collector, Rail-to-Rail	Open-Collector, Rail-to-Rail	Open-Collector, Rail-to-Rail	Open-Collector, Rail-to-Rail	Open-Collector, Rail-to-Rail	Open-Collector, Rail-to-Rail	Open-Collector	Open-Collector
Voltage Supply Range	2V, ±1V ~ 36V, ±18V	2V ~ 36V, ±1V ~ 18V	2V ~ 36V, ±1V ~ 18V	2V ~ 36V, ±1V ~ 18V	2V ~ 36V, ±1V ~ 18V	2V ~ 36V, ±1V ~ 18V	2V ~ 36V, ±1V ~ 18V	2V ~ 36V, ±1V ~ 18V	2.5V ~ 5.5V	2.7V ~ 5.5V
Input Offset Voltage (Max)	7mV @ 5V	7mV @ 30V	7mV @ 30V	7mV @ 5V	7mV @ 5V	7mV @ 5V	7mV @ 5V	7mV @ 5V	7mV @ 5V	7mV @ 5V
Input Bias Current (Max)	0.25µA @ 1.4V	0.25µA @ 5V	0.25µA @ 5V	0.25µA @ 5V	0.25µA @ 5V	0.25µA @ 5V	0.25µA @ 5V	0.25µA @ 5V	0.25µA @ 5V	0.25µA @ 5V
Output Current (Typ)	16mA @ 5V	20mA	20mA	20mA	20mA	20mA	20mA	20mA	84mA @ 5V	84mA @ 5V
Quiescent Current (Max)	1mA	2.5mA	2.5mA	2.5mA	2.5mA	2.5mA	2.5mA	2.5mA	200µA	250µA
Operating Temperature	-40°C ~ 105°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	8-LSSOP (0.173", 4.40mm)	8-TSSOP (0.173", 4.40mm)	8-TSSOP (0.173", 4.40mm)	8-TSSOP (0.173", 4.40mm)	8-TSSOP (0.173", 4.40mm)	8-TSSOP (0.173", 4.40mm)	8-TSSOP (0.173", 4.40mm)	8-TSSOP (0.173", 4.40mm)	8-MSOP (0.118", 3.00mm)	8-TSSOP (0.173", 4.40mm)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Active	Active	Active	Active	Active	Obsolete	Active	Active	Active	Active
Automotive Grade	No	No	No	Yes (AEC-Q100)	Yes (AEC-Q100)	Yes (AEC-Q100)	Yes (AEC-Q100)	Yes (AEC-Q100)	No	No
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	Not specified
Inventory (Pcs)	6280	28150	100300	50174	23300	163300	8300	5477	6330	65220

Engineering Selection Recommendations

Primary Upgrade Substitutes (Recommended)

LM2903PWRG3 and LM2903PWR from Texas Instruments are the preferred upgrade substitutes. Both maintain active product status, offer extended operating temperature range to 125°C, and provide superior output current capability (20mA versus 16mA). These parts are available in high inventory quantities (100300 and 28150 units respectively) and maintain full ROHS3 compliance. The 8-TSSOP package footprint is mechanically compatible with the BA2903SFV-E2 8-LSSOP package for PCB layout purposes.

Automotive-Grade Alternatives

For applications requiring automotive qualification, LM2903QPWRG4Q1, LM2903QPWRQ1, LM2903VQPWRG4Q1, and LM2903VQPWRQ1 are AEC-Q100 certified options. These parts maintain active status (except LM2903VQPWR which is obsolete), operate to 125°C, and provide the same electrical performance as standard industrial-grade substitutes. LM2903QPWRG4Q1 offers the highest inventory availability at 50174 units.

Restricted Supply Voltage Applications

AZV393MMTR-G1 and LMV393IPWR are suitable only for applications operating within 2.5V to 5.5V supply range. These parts feature higher output current capability (84mA) but operate only to 85°C maximum temperature. AZV393MMTR-G1 uses 8-MSOP packaging with reduced footprint dimensions (3.00mm width versus 4.40mm), requiring PCB layout verification before substitution.

Obsolete Part Avoidance

LM2903VQPWR carries obsolete product status and should not be selected for new designs despite high inventory availability (163300 units). This part is suitable only for legacy system maintenance or repair applications.

Frequently Asked Questions (FAQ)

Q: Can I substitute LM2903PWR directly for BA2903SFV-E2 without PCB modifications?

A: The 8-TSSOP and 8-LSSOP packages share identical 0.173" width and 4.40mm pitch specifications, making them mechanically compatible on standard PCB layouts. However, verify pin-to-pin compatibility with your specific PCB design before assembly.

Q: What is the difference between upgrade substitutes and similar substitutes?

A: Upgrade substitutes (LM2903 series) maintain identical supply voltage ranges and operating specifications as the BA2903SFV-E2. Similar substitutes (AZV393MMTR-G1, LMV393IPWR) operate within restricted voltage ranges (2.5V to 5.5V or 2.7V to 5.5V) and lower maximum temperatures (85°C), requiring design verification before use.

Q: Why do some substitutes have higher quiescent current specifications?

A: LM2903 series substitutes specify 2.5mA maximum quiescent current compared to 1mA for the BA2903SFV-E2. This represents a design trade-off for improved output current capability (20mA versus 16mA) and extended temperature range. Verify power budget impact in your application before substitution.

Q: Are automotive-grade parts (AEC-Q100) required for my application?

A: Automotive-grade qualification is necessary only for automotive or safety-critical applications. For industrial or consumer applications, standard industrial-grade substitutes (LM2903PWR, LM2903PWRG3) provide equivalent functionality at lower cost.

Q: What is the significance of the 8-MSOP package used by AZV393MMTR-G1?

A: The 8-MSOP package has reduced footprint dimensions (3.00mm width versus 4.40mm for 8-TSSOP). This package is not directly compatible with BA2903SFV-E2 PCB layouts and requires complete PCB redesign. Use only when space constraints justify redesign effort.

Q: Can I use LMV393IPWR in high-voltage applications?

A: No. LMV393IPWR operates only within 2.7V to 5.5V supply range, making it unsuitable for applications requiring the BA2903SFV-E2's extended ±18V capability. Verify your application's supply voltage requirements before selecting this substitute.

Q: Why is inventory quantity relevant to my substitution decision?

A: High inventory availability (LM2903PWRG3 with 100300 units, LM2903VQPWR with 163300 units) indicates reliable long-term supply for production volumes. Lower inventory parts may face future availability constraints, affecting production planning for high-volume applications.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message