TL331IDBVTG4 Equivalent & Substitute Parts

Part Overview

The TL331IDBVTG4 is a general-purpose comparator IC manufactured by Texas Instruments, housed in a SOT-23-5 surface mount package. This device features open-collector, rail-to-rail output configuration with a single differential input element. The TL331IDBVTG4 is classified as obsolete, necessitating identification of active equivalent parts for new designs and production continuity. Substitute parts must maintain identical electrical performance and package compatibility while offering active product status and improved availability.

Key Parameters

Parameter	Value
Manufacturer	Texas Instruments
Category	Linear Comparator
Type	General Purpose
Number of Elements	1
Output Type	Open-Collector, Rail-to-Rail
Voltage Supply (Single/Dual)	2V ~ 36V, ±1V ~ 18V
Voltage Input Offset (Max)	5mV @ 30V
Current Input Bias (Max)	0.25µA @ 5V
Current Output (Typ)	20mA
Current Quiescent (Max)	700µA
Operating Temperature	-40°C ~ 85°C
Package / Case	SC-74A, SOT-753
Supplier Device Package	SOT-23-5
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)
REACH Status	REACH Unaffected
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitute parts for the TL331IDBVTG4 are classified based on strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Package / Case: SC-74A, SOT-753
Supplier Device Package: SOT-23-5
Mounting Type: Surface Mount
Voltage Supply Range: 2V ~ 36V, ±1V ~ 18V
Voltage Input Offset (Max): 5mV @ 30V
Current Input Bias (Max): 0.25µA @ 5V
Output Type: Open-Collector, Rail-to-Rail
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Substitution Categories:

MFR Recommended Substitutes (Direct Replacements):

TL331IDBVT (Texas Instruments) — Active product status, identical electrical specifications, Cut Tape & Digi-Reel packaging
TL331IDBVRQ1 (Texas Instruments) — Active product status, automotive grade with AEC-Q100 qualification, identical electrical specifications

Parametric Equivalents (Electrical Compatibility with Package Variations):

TL331IDBVR (Texas Instruments) — Active product status, identical electrical specifications, Cut Tape & Digi-Reel packaging
AP331AWG-7 (Diodes Incorporated) — Active product status, SOT-25 package variant, compatible electrical performance within specified ranges
TS391RILT (STMicroelectronics) — Active product status, extended operating temperature range (-40°C ~ 125°C), compatible electrical performance

Parameter Comparison

Parameter	TL331IDBVTG4	TL331IDBVT	TL331IDBVR	TL331IDBVRQ1	AP331AWG-7	TS391RILT
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Diodes Incorporated	STMicroelectronics
Product Status	Obsolete	Active	Active	Active	Active	Active
Type	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose
Number of Elements	1	1	1	1	1	1
Output Type	Open-Collector, Rail-to-Rail	Open-Collector, Rail-to-Rail	Open-Collector, Rail-to-Rail	Open-Collector, Rail-to-Rail	CMOS, DTL, ECL, MOS, Open-Collector, TTL	CMOS, DTL, ECL, MOS, TTL
Voltage Supply (Single/Dual)	2V ~ 36V, ±1V ~ 18V	2V ~ 36V, ±1V ~ 18V	2V ~ 36V, ±1V ~ 18V	2V ~ 36V, ±1V ~ 18V	2V ~ 36V, ±1V ~ 18V	2V ~ 36V, ±1V ~ 18V
Voltage Input Offset (Max)	5mV @ 30V	5mV @ 30V	5mV @ 30V	5mV @ 30V	8mV @ 5V	5mV @ 30V
Current Input Bias (Max)	0.25µA @ 5V	0.25µA @ 5V	0.25µA @ 5V	0.25µA @ 5V	0.4µA @ 5V	0.25µA @ 5V
Current Output (Typ)	20mA	20mA	20mA	20mA	16mA @ 5V	16mA @ 5V
Current Quiescent (Max)	700µA	700µA	700µA	700µA	2.5mA	1.25mA
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 125°C
Package / Case	SC-74A, SOT-753	SC-74A, SOT-753	SC-74A, SOT-753	SC-74A, SOT-753	SC-74A, SOT-753	SC-74A, SOT-753
Supplier Device Package	SOT-23-5	SOT-23-5	SOT-23-5	SOT-23-5	SOT-25	SOT-23-5
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): Select TL331IDBVT or TL331IDBVR from Texas Instruments. Both parts maintain identical electrical parameters and package specifications as the obsolete TL331IDBVTG4. TL331IDBVT offers MFR recommended status with improved inventory availability. TL331IDBVR provides parametric equivalence with higher stock levels.

For Automotive Applications: Select TL331IDBVRQ1 from Texas Instruments. This part maintains identical electrical specifications while offering automotive-grade qualification with AEC-Q100 certification, suitable for automotive and harsh environment applications.

For Extended Temperature Range Applications: Select TS391RILT from STMicroelectronics. This part extends the operating temperature range to -40°C ~ 125°C while maintaining compatible electrical performance. Note the reduced quiescent current (1.25mA vs. 700µA) and slightly lower typical output current (16mA vs. 20mA).

For Alternative Manufacturer Sourcing: Select AP331AWG-7 from Diodes Incorporated. This part provides parametric equivalence with compatible voltage supply and input offset specifications. Note the SOT-25 package variant, higher input bias current (0.4µA vs. 0.25µA), increased quiescent current (2.5mA vs. 700µA), and narrower operating temperature range (0°C ~ 70°C).

All substitute parts maintain ROHS3 compliance, MSL Level 1 rating, and REACH unaffected status, ensuring regulatory compliance across applications.

Frequently Asked Questions (FAQ)

Q: Can TL331IDBVT directly replace TL331IDBVTG4 without circuit modifications? A: Yes. TL331IDBVT maintains identical electrical specifications, package configuration (SOT-23-5), and performance parameters. No circuit modifications are required for direct substitution.

Q: What is the difference between TL331IDBVT and TL331IDBVR? A: Both parts are parametric equivalents with identical electrical specifications and SOT-23-5 packaging. The primary difference is packaging format: TL331IDBVT is available in Cut Tape & Digi-Reel, while TL331IDBVR offers the same format with higher inventory availability.

Q: Is TL331IDBVRQ1 suitable for automotive applications? A: Yes. TL331IDBVRQ1 carries automotive-grade qualification with AEC-Q100 certification, making it suitable for automotive and mission-critical applications requiring enhanced reliability standards.

Q: Can AP331AWG-7 be used as a direct replacement? A: AP331AWG-7 provides parametric equivalence but with notable differences: SOT-25 package variant, higher input bias current (0.4µA), increased quiescent current (2.5mA), and narrower operating temperature range (0°C ~ 70°C). Circuit validation is required for applications sensitive to these parameter variations.

Q: What are the key differences between TS391RILT and TL331IDBVTG4? A: TS391RILT offers extended operating temperature range (-40°C ~ 125°C) and reduced quiescent current (1.25mA). Typical output current is slightly lower (16mA vs. 20mA). All other electrical parameters remain compatible. This part is suitable for temperature-sensitive applications.

Q: Are all substitute parts RoHS and REACH compliant? A: Yes. All substitute parts listed maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory compliance for EU and global markets.

Q: What packaging considerations apply when selecting substitutes? A: TL331IDBVT, TL331IDBVR, TL331IDBVRQ1, and TS391RILT use SOT-23-5 packaging identical to the original part. AP331AWG-7 uses SOT-25 packaging, which has different pin configuration and PCB footprint. Verify PCB layout compatibility before selecting AP331AWG-7.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message