TS321IDBVRE4 Equivalent & Substitute Parts Reference

Part Overview

The TS321IDBVRE4 is a general-purpose operational amplifier manufactured by Texas Instruments, packaged in SOT-23-5 (SC-74A) surface mount configuration. This device is classified as obsolete product status, indicating discontinuation from active manufacturing. The TS321IDBVRE4 serves as a single-channel general-purpose amplifier suitable for low-power analog signal processing applications across industrial and consumer electronics.

Due to obsolete product status, equivalent substitute parts with active manufacturing status are necessary to ensure long-term design reliability, supply chain continuity, and compliance with current component qualification standards.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose
Number of Circuits	1
Slew Rate	0.4	V/µs
Gain Bandwidth Product	800	kHz
Current - Input Bias	20	nA
Voltage - Input Offset	500	µV
Current - Supply	600	µA
Current - Output / Channel	40	mA
Voltage - Supply Span (Min)	3	V
Voltage - Supply Span (Max)	30	V
Operating Temperature	-40 to 125	°C
Mounting Type	Surface Mount
Package / Case	SC-74A, SOT-753
Supplier Device Package	SOT-23-5
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the TS321IDBVRE4 are classified into two functional groups based on electrical parameter compatibility:

Group 1: Direct Parameter Match (Identical Electrical Specifications)

Substitute parts TS321IDBVR, TS321AILT, TS321AIYLT, TS321ILT, and TS321IYLT maintain identical electrical parameters to the main part: Slew Rate 0.4 V/µs, Gain Bandwidth Product 800 kHz, Input Bias Current 20 nA, Input Offset Voltage 500 µV, Supply Current 600 µA, and Operating Temperature Range -40°C to 125°C. These parts are interchangeable at the functional level for applications requiring the original TS321IDBVRE4 specifications.

Group 2: Enhanced Electrical Performance (Improved Specifications)

Substitute parts LM321MF/NOPB and LM321MFX/NOPB provide enhanced electrical performance with Gain Bandwidth Product 1 MHz (versus 800 kHz), higher Input Bias Current 45 nA, and increased Input Offset Voltage 2 mV. These parts operate within the same supply voltage range (3 V to 30 V minimum, with LM321MFX/NOPB supporting up to 32 V maximum). Operating temperature range is reduced to -40°C to 85°C. These substitutes are suitable for applications where enhanced bandwidth performance is beneficial and the reduced temperature range is acceptable.

Key Parameters Determining Substitution:

Slew Rate: 0.4 V/µs (all substitutes)
Supply Voltage Range: 3 V to 30 V minimum (all substitutes)
Output Current: 40 mA per channel (all substitutes)
Package Type: SOT-23-5 (all substitutes)
Mounting Type: Surface Mount (all substitutes)
RoHS3 Compliance: All substitutes compliant

Parameter Comparison

Parameter	TS321IDBVRE4	TS321IDBVR	LM321MF/NOPB	LM321MFX/NOPB	TS321AILT	TS321AIYLT	TS321ILT	TS321IYLT
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active
Slew Rate (V/µs)	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4
Gain Bandwidth Product (kHz)	800	800	1000	1000	800	800	800	800
Current - Input Bias (nA)	20	20	45	45	20	20	20	20
Voltage - Input Offset (µV)	500	500	2000	2000	500	500	500	500
Current - Supply (µA)	600	600	660	660	600	600	600	600
Current - Output / Channel (mA)	40	40	40	40	40	40	40	40
Voltage - Supply Span Min (V)	3	3	3	3	3	3	3	3
Voltage - Supply Span Max (V)	30	30	30	32	30	30	30	30
Operating Temperature (°C)	-40 to 125	-40 to 125	-40 to 85	-40 to 85	-40 to 125	-40 to 125	-40 to 125	-40 to 125
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	SC-74A, SOT-753	SC-74A, SOT-753
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Automotive Grade	No	No	No	No	No	Yes (AEC-Q100)	No	Yes (AEC-Q100)
Inventory Status	1086 Pcs	56900 Pcs	28941 Pcs	65300 Pcs	69500 Pcs	10025 Pcs	104400 Pcs	18972 Pcs

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Performance):

Select TS321IDBVR, TS321AILT, TS321ILT, or TS321IYLT when the original TS321IDBVRE4 specifications must be maintained exactly. All four parts provide identical electrical parameters and operating temperature range (-40°C to 125°C). TS321IDBVR is manufactured by Texas Instruments and maintains the original manufacturer continuity. TS321AILT, TS321ILT, and TS321IYLT are manufactured by STMicroelectronics and provide equivalent performance. TS321AIYLT and TS321IYLT include automotive-grade qualification (AEC-Q100) and are suitable for automotive applications requiring enhanced reliability standards.

For Enhanced Performance Applications:

Select LM321MF/NOPB or LM321MFX/NOPB when applications benefit from increased Gain Bandwidth Product (1 MHz versus 800 kHz). Both parts are manufactured by Texas Instruments with active product status. LM321MFX/NOPB supports extended supply voltage to 32 V maximum. Operating temperature range is reduced to -40°C to 85°C; this substitution is valid only for applications operating within this temperature window.

Product Status Consideration:

All substitute parts maintain active product status, ensuring continued availability and manufacturing support. The original TS321IDBVRE4 is obsolete; transition to an active substitute part is recommended for new designs and long-term production continuity.

Compliance and Certification:

All substitute parts are ROHS3 compliant and maintain MSL 1 (Unlimited) moisture sensitivity rating. TS321AIYLT and TS321IYLT include AEC-Q100 automotive qualification for applications requiring automotive-grade component certification.

Frequently Asked Questions (FAQ)

Q1: Can TS321IDBVR directly replace TS321IDBVRE4 in existing designs?

A: Yes. TS321IDBVR is electrically and mechanically identical to TS321IDBVRE4. Both parts share identical Slew Rate (0.4 V/µs), Gain Bandwidth Product (800 kHz), Input Bias Current (20 nA), Input Offset Voltage (500 µV), Supply Current (600 µA), and Operating Temperature Range (-40°C to 125°C). Package type (SOT-23-5) and pin configuration are identical. TS321IDBVR is the recommended direct substitute from Texas Instruments.

Q2: What is the difference between TS321AILT and TS321AIYLT?

A: Both parts are manufactured by STMicroelectronics and share identical electrical specifications. TS321AIYLT includes automotive-grade qualification (AEC-Q100) and is suitable for automotive applications. TS321AILT does not carry automotive qualification. Select TS321AIYLT for automotive applications; select TS321AILT for industrial and consumer applications.

Q3: Why do LM321MF/NOPB and LM321MFX/NOPB have higher Gain Bandwidth Product?

A: LM321MF/NOPB and LM321MFX/NOPB are enhanced versions of the LM321 base product with 1 MHz Gain Bandwidth Product compared to 800 kHz in the TS321 series. This represents improved frequency response performance. These parts are suitable for applications requiring higher bandwidth. Operating temperature range is reduced to -40°C to 85°C; verify application temperature requirements before selection.

Q4: Are all substitute parts available in the same package?

A: Yes. All substitute parts are packaged in SOT-23-5 (SC-74A, SOT-753) surface mount configuration, identical to the original TS321IDBVRE4. Pin configuration and PCB footprint are compatible across all listed substitutes.

Q5: Which substitute part has the highest inventory availability?

A: TS321ILT manufactured by STMicroelectronics has the highest inventory with 104,400 pieces in stock. LM321MFX/NOPB has 65,300 pieces, and TS321AILT has 69,500 pieces. All substitutes maintain substantial inventory levels for production continuity.

Q6: Can LM321MFX/NOPB operate at 32 V supply voltage?

A: Yes. LM321MFX/NOPB supports maximum supply voltage of 32 V, compared to 30 V maximum for other substitutes. This extended voltage range is the primary electrical difference between LM321MFX/NOPB and LM321MF/NOPB. Both parts share identical Slew Rate, Gain Bandwidth Product, and other electrical parameters.

Q7: Are substitute parts RoHS compliant?

A: Yes. All substitute parts listed are ROHS3 compliant and meet current environmental and hazardous substance restrictions. Moisture Sensitivity Level (MSL) is 1 (Unlimited) for all parts, indicating no moisture sensitivity constraints during storage and handling.

Q8: What is the recommended substitute for automotive applications?

A: TS321AIYLT or TS321IYLT are recommended for automotive applications. Both parts include AEC-Q100 automotive-grade qualification and maintain identical electrical specifications to the original TS321IDBVRE4. Operating temperature range is -40°C to 125°C, suitable for automotive environmental conditions.

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