AS393GTR-E1 Equivalent & Substitute Parts

Part Overview

The AS393GTR-E1 is a dual general-purpose comparator manufactured by Diodes Incorporated, housed in an 8-TSSOP surface-mount package. This linear IC operates across a wide supply voltage range of 2V to 36V (single supply) or ±1V to ±18V (dual supply), with open-collector output configuration suitable for logic-level interfacing. The device is currently in active production status with 23,100 units in stock.

Substitute parts are necessary when the original AS393GTR-E1 becomes unavailable, when alternative packaging formats are required for manufacturing compatibility, or when design revisions call for different thermal or environmental operating ranges.

Key Parameters

Parameter	AS393GTR-E1
Manufacturer	Diodes Incorporated
Package Type	8-TSSOP (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)	5mV @ 5V
Input Bias Current (Max)	0.25µA @ 5V
Output Current (Typ)	16mA @ 5V
Quiescent Current (Max)	1mA
Operating Temperature	-40°C ~ 85°C
Product Status	Active
RoHS Compliance	ROHS3 Compliant
MSL Rating	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution eligibility for the AS393GTR-E1 is determined by the following critical parameters:

Number of Elements: Must be 2 (dual comparator)
Output Type: Must be Open-Collector
Supply Voltage Range: Must support at minimum 2V ~ 36V single supply or equivalent dual supply capability
Input Offset Voltage: Maximum 7mV @ 5V acceptable
Input Bias Current: Maximum 0.25µA @ 5V
Output Current: Minimum 16mA @ 5V
Quiescent Current: Maximum 1mA
Operating Temperature: Minimum -40°C lower bound required
Mounting Type: Surface Mount only
RoHS Compliance: ROHS3 Compliant required

Substitute parts may differ in package format (8-SOP, 8-SOIC, 8-VSSOP), packaging method (Tape & Reel vs. Cut Tape), and upper temperature rating, provided all electrical parameters remain within specification.

Parameter Comparison

Parameter	AS393GTR-E1	BA10393F-E2	BA2903F-E2	BA2903SF-E2	BA2903WF-E2	LMV393ID	LMV393IDGKR	LMV393MX/NOPB
Manufacturer	Diodes Inc.	Rohm Semi.	Rohm Semi.	Rohm Semi.	Rohm Semi.	TI	TI	TI
Package	8-TSSOP	8-SOP	8-SOP	8-SOP	8-SOP	8-SOIC	8-VSSOP	8-SOIC
Number of Elements	2	2	2	2	2	2	2	2
Output Type	Open-Collector	Open-Collector	Open-Collector	Open-Collector	Open-Collector	Open-Collector	Open-Collector	CMOS, Open-Collector, TTL
Supply Voltage	2V ~ 36V / ±1V ~ 18V	2V ~ 36V / ±1V ~ 18V	2V ~ 36V / ±1V ~ 18V	2V ~ 36V / ±1V ~ 18V	2V ~ 36V / ±1V ~ 18V	2.7V ~ 5.5V	2.7V ~ 5.5V	2.7V ~ 5.5V
Input Offset (Max)	5mV @ 5V	5mV @ 5V	7mV @ 5V	7mV @ 5V	5mV @ 5V	7mV @ 5V	7mV @ 5V	7mV @ 5V
Input Bias Current (Max)	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	16mA @ 5V	16mA @ 5V	16mA @ 5V	16mA @ 5V	84mA @ 5V	84mA @ 5V	84mA @ 5V
Quiescent Current (Max)	1mA	1mA	1mA	1mA	1mA	250µA	250µA	300µA
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 125°C	-40°C ~ 105°C	-40°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Product Status	Active	Active	Active	Active	Not For New Designs	Last Time Buy	Active	Active
RoHS Compliance	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3
MSL Rating	3	1	1	1	1	1	1	1

Engineering Selection Recommendations

Tier 1 - Direct Electrical Equivalents (Preferred for New Designs)

BA10393F-E2 and BA2903SF-E2 from Rohm Semiconductor maintain identical electrical specifications to the AS393GTR-E1 within the critical parameter set. Both devices are in active production status with ROHS3 compliance and MSL-1 ratings, indicating superior moisture handling compared to the original part. BA10393F-E2 is available in Cut Tape & Digi-Reel packaging, while BA2903SF-E2 is supplied on Tape & Reel with extended temperature rating to 105°C.

Tier 2 - Extended Temperature Capability

BA2903F-E2 and BA2903WF-E2 extend the upper operating temperature to 125°C, suitable for applications requiring enhanced thermal margin. BA2903F-E2 maintains active status; BA2903WF-E2 is designated "Not For New Designs" and should be avoided in new product development despite superior propagation delay specification (400ns typical).

Tier 3 - Restricted Supply Voltage Range

LMV393ID, LMV393IDGKR, and LMV393MX/NOPB from Texas Instruments operate within a narrower supply voltage range (2.7V ~ 5.5V) compared to the AS393GTR-E1 (2V ~ 36V). These devices are suitable only for applications operating exclusively within this reduced voltage window. LMV393ID carries "Last Time Buy" status and should not be selected for new designs. LMV393IDGKR remains in active production and offers package compatibility with the original 8-TSSOP footprint via its 8-VSSOP variant.

Compliance and Certification

All recommended substitutes maintain ROHS3 compliance and EAR99 export classification. Moisture sensitivity levels for Rohm devices (MSL-1) provide superior protection compared to the original AS393GTR-E1 (MSL-3), reducing risk during storage and assembly operations.

Frequently Asked Questions (FAQ)

Q: Can LMV393 series parts replace AS393GTR-E1 in all applications?

A: LMV393 series devices operate within a restricted supply voltage range of 2.7V ~ 5.5V, compared to the AS393GTR-E1 range of 2V ~ 36V. Substitution is valid only for applications operating exclusively within the 2.7V ~ 5.5V window. For applications requiring operation below 2.7V or above 5.5V, Rohm BA series devices (BA10393F-E2, BA2903F-E2, BA2903SF-E2) are required.

Q: What is the difference between 8-TSSOP, 8-SOP, 8-SOIC, and 8-VSSOP packages?

A: These are distinct surface-mount package formats with different footprint geometries and pin spacing. 8-TSSOP (0.173" width) and 8-VSSOP (0.118" width) are narrow-body packages; 8-SOP and 8-SOIC (0.154" width) are standard-body packages. PCB layout and reflow profile compatibility must be verified before substitution. Direct package-to-package interchange is not possible without PCB redesign.

Q: Why do some substitute parts have higher output current ratings?

A: LMV393 series devices specify 84mA typical output current at 5V, compared to 16mA for the AS393GTR-E1 and Rohm BA series. This difference reflects different internal output stage design. For applications requiring only 16mA output capability, both specifications are functionally equivalent. Applications demanding higher output current must verify the original design does not depend on the lower current specification.

Q: Is BA2903WF-E2 suitable for new product development?

A: No. BA2903WF-E2 carries "Not For New Designs" status, indicating the manufacturer has discontinued active support. While electrically functional, this part should be avoided in new designs to prevent future obsolescence risk. BA2903F-E2 or BA2903SF-E2 are preferred alternatives.

Q: What does MSL-3 versus MSL-1 mean for component handling?

A: MSL (Moisture Sensitivity Level) indicates the maximum time a component can remain outside controlled humidity before soldering. MSL-3 allows 168 hours; MSL-1 allows unlimited time. Rohm substitute parts with MSL-1 rating reduce risk of moisture-induced failures during storage and assembly, particularly in high-humidity environments or extended supply chains.

Q: Can I use LMV393IDGKR as a direct footprint replacement?

A: LMV393IDGKR uses 8-VSSOP packaging (0.118" width), which differs from the AS393GTR-E1 8-TSSOP footprint (0.173" width). While both are narrow-body packages, the pin spacing and pad layout are incompatible. PCB redesign is required for substitution. However, LMV393IDGKR offers the closest package similarity to the original part among available alternatives.

Q: What are the key electrical differences between Rohm BA and Texas Instruments LMV393 series?

A: Rohm BA series maintains the original 2V ~ 36V supply voltage range and 16mA output current specification. Texas Instruments LMV393 series restricts supply voltage to 2.7V ~ 5.5V but provides higher output current (84mA) and lower quiescent current (250µA vs. 1mA). Selection depends on application voltage requirements and output drive capability needs.

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