TL061ACD Equivalent & Substitute Parts

Part Overview

The TL061ACD is a J-FET input operational amplifier manufactured by Texas Instruments in 8-SOIC surface mount packaging. This device is classified as Last Time Buy, indicating discontinued production with limited remaining inventory of 2100 pieces. The TL061ACD serves applications requiring low input bias current and moderate bandwidth in a compact form factor. Equivalent and substitute parts are necessary due to product status transition and to ensure design continuity with alternative sourcing options.

Key Parameters

Parameter	Value	Unit
Amplifier Type	J-FET	—
Number of Circuits	1	—
Slew Rate	3.5	V/µs
Gain Bandwidth Product	1	MHz
Current - Input Bias	30	pA
Voltage - Input Offset	3	mV
Current - Supply	200	µA
Voltage - Supply Span (Min)	7	V
Voltage - Supply Span (Max)	36	V
Operating Temperature	0 to 70	°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the TL061ACD is determined by strict equivalence in the following electrical and mechanical parameters: amplifier type (J-FET), number of circuits (1), package type (8-SOIC), mounting method (surface mount), and compliance certifications (ROHS3, REACH Unaffected).

The substitute parts are grouped into two categories:

Category 1: Direct J-FET Equivalents (Identical Amplifier Type) These parts maintain J-FET input architecture with matching slew rate (3.5 V/µs) and gain bandwidth product (1 MHz). Substitutes in this category include TL061ACDR, TL061ACDT, TL061CD, TL061ID, TL061CDT, and TL061IDT. These parts differ primarily in packaging format (Tube, Tape & Reel, or Cut Tape) and product status (Active or Last Time Buy).

Category 2: General Purpose Amplifier Alternatives These parts represent functional alternatives with different amplifier architecture (General Purpose instead of J-FET). Substitutes include UA741CD, UA741CDT, and UA741ID. These devices operate within compatible supply voltage ranges and package specifications but exhibit different input bias current characteristics and slew rate performance.

Category 3: Enhanced Performance Alternative The MC33171DR2G represents a general purpose amplifier with extended supply voltage range and higher output current capability, suitable for applications where J-FET input characteristics are not critical.

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Slew Rate (V/µs)	GBW (MHz)	Input Bias (pA/nA)	Supply Min (V)	Supply Max (V)	Temp Range (°C)	Packaging	Status
TL061ACD	Texas Instruments	J-FET	3.5	1	30 pA	7	36	0 to 70	Tube	Last Time Buy
TL061ACDR	Texas Instruments	J-FET	3.5	1	30 pA	7	36	0 to 70	Tape & Reel	Active
TL061ACDT	STMicroelectronics	J-FET	3.5	1	30 pA	6	36	0 to 70	Cut Tape	Active
TL061CD	Texas Instruments	J-FET	3.5	1	30 pA	7	36	0 to 70	Tube	Last Time Buy
TL061ID	STMicroelectronics	J-FET	3.5	1	30 pA	6	36	-40 to 105	—	Obsolete
TL061CDT	STMicroelectronics	J-FET	3.5	1	30 pA	6	36	0 to 70	Cut Tape	Active
TL061IDT	STMicroelectronics	J-FET	3.5	1	30 pA	6	36	-40 to 105	Cut Tape	Active
UA741CD	Texas Instruments	General Purpose	0.5	1	80 nA	7	36	0 to 70	Tube	Last Time Buy
UA741CDT	STMicroelectronics	General Purpose	0.5	1	10 nA	10	44	0 to 70	Cut Tape	Active
UA741ID	STMicroelectronics	General Purpose	0.5	1	10 nA	10	44	-40 to 105	Tube	Active
MC33171DR2G	onsemi	General Purpose	2.1	1.8	20 nA	3	44	-40 to 85	Cut Tape	Active

Engineering Selection Recommendations

For Direct Replacement (J-FET Input Requirement):

Select TL061ACDR when J-FET input characteristics are mandatory for the application. This part is manufactured by Texas Instruments with identical electrical specifications to the TL061ACD and carries Active product status with 5300 pieces in stock. The Tape & Reel packaging format is suitable for automated assembly processes.

Select TL061CDT or TL061IDT when sourcing from STMicroelectronics is acceptable. Both parts maintain J-FET architecture with identical slew rate and gain bandwidth product. TL061CDT operates within the standard 0°C to 70°C temperature range, while TL061IDT extends to -40°C to 105°C for industrial and extended temperature applications. Both are Active products with substantial inventory availability.

For General Purpose Applications:

Select UA741CDT when J-FET input bias current is not a critical design parameter. This STMicroelectronics part is Active with 82190 pieces in stock and offers extended supply voltage range (10 V to 44 V). The lower slew rate (0.5 V/µs) is acceptable for applications not requiring rapid signal transitions.

Select UA741ID when extended operating temperature range (-40°C to 105°C) is required with general purpose amplifier characteristics. This part is Active with 1323 pieces available.

For Enhanced Performance Requirements:

Select MC33171DR2G when applications require higher gain bandwidth product (1.8 MHz), extended supply voltage range (3 V to 44 V), or higher output current (27 mA). This onsemi part is Active with 31500 pieces in stock and represents the highest inventory availability among all substitutes.

Avoid:

TL061ID (Obsolete status) and UA741CD (Last Time Buy status) should not be selected for new designs due to product lifecycle status.

Frequently Asked Questions (FAQ)

Q: Can TL061ACD be directly replaced with UA741CD?

A: Both parts share identical 8-SOIC packaging, 1 MHz gain bandwidth product, and compatible supply voltage ranges (7 V to 36 V). However, they differ in amplifier type: TL061ACD uses J-FET input architecture with 30 pA input bias current, while UA741CD uses general purpose architecture with 80 nA input bias current. Substitution is possible only if the application does not require J-FET input characteristics. Verify input impedance and bias current requirements before substitution.

Q: What is the difference between TL061ACDR and TL061ACDT?

A: Both parts are manufactured by different suppliers (Texas Instruments vs. STMicroelectronics) and use different packaging formats (Tape & Reel vs. Cut Tape). Electrical specifications are identical. TL061ACDR is recommended for high-volume automated assembly using reel-fed equipment. TL061ACDT is suitable for lower-volume or mixed-component assembly processes. Both are Active products.

Q: Why does TL061IDT have a wider operating temperature range than TL061CDT?

A: TL061IDT is rated for -40°C to 105°C (industrial temperature range), while TL061CDT is rated for 0°C to 70°C (commercial temperature range). Both parts are manufactured by STMicroelectronics with identical electrical performance within their respective operating ranges. Select TL061IDT for applications requiring extended temperature operation; select TL061CDT for standard commercial temperature environments.

Q: Is MC33171DR2G a suitable substitute for TL061ACD?

A: MC33171DR2G shares the 8-SOIC package and 1 MHz gain bandwidth product but differs significantly in amplifier type (general purpose vs. J-FET), input bias current (20 nA vs. 30 pA), and slew rate (2.1 V/µs vs. 3.5 V/µs). Substitution is acceptable only for applications where J-FET input characteristics are not required. The extended supply voltage range (3 V to 44 V) and higher output current (27 mA) may provide additional design flexibility.

Q: What packaging formats are available for TL061 equivalents?

A: TL061 equivalents are available in three packaging formats: Tube (TL061ACD, TL061CD), Tape & Reel (TL061ACDR), and Cut Tape with Digi-Reel (TL061ACDT, TL061CDT, TL061IDT). Select Tube packaging for manual assembly or low-volume production. Select Tape & Reel or Cut Tape for automated assembly processes. All formats use identical 8-SOIC (0.154", 3.90mm Width) case dimensions.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed (TL061ACDR, TL061ACDT, TL061CD, TL061ID, TL061CDT, TL061IDT, UA741CD, UA741CDT, UA741ID, MC33171DR2G) are ROHS3 Compliant with Moisture Sensitivity Level 1 (Unlimited). All parts are REACH Unaffected and classified as EAR99 for export control purposes.

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