TL071ACD Equivalent & Substitute Parts

Part Overview

The TL071ACD is a J-FET input operational amplifier manufactured by STMicroelectronics in an 8-SOIC surface mount package. This device is classified as obsolete, indicating discontinued production and limited availability in the market. The TL071ACD serves as a general-purpose amplifier suitable for audio and instrumentation applications requiring low input bias current and low input offset voltage characteristics inherent to J-FET input designs.

Due to its obsolete status, identifying equivalent and substitute parts is necessary for design continuity, production support, and long-term component sourcing. Substitute parts must maintain electrical compatibility across critical parameters including amplifier type, package configuration, supply voltage range, and thermal operating specifications.

Key Parameters

Parameter	Value	Unit
Amplifier Type	J-FET	—
Number of Circuits	1	—
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
Slew Rate	16	V/µs
Gain Bandwidth Product	4	MHz
Current - Input Bias	20	pA
Voltage - Input Offset	3	mV
Current - Supply	1.4	mA
Current - Output / Channel	40	mA
Voltage - Supply Span (Min)	6	V
Voltage - Supply Span (Max)	36	V
Operating Temperature	0 to 70	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the TL071ACD are classified into two categories based on electrical and mechanical compatibility:

Direct Substitutes maintain identical or near-identical electrical specifications and package configuration, enabling pin-for-pin replacement without circuit modification. These parts share the same amplifier type (J-FET), single circuit configuration, 8-SOIC package footprint, and compatible supply voltage ranges.

Similar Substitutes provide functional equivalence through comparable electrical performance within acceptable parameter tolerances but may exhibit variations in specific characteristics such as slew rate, gain bandwidth product, input bias current, or supply current. These parts retain the same package type and mounting configuration but operate under different thermal or compliance specifications.

The following parameters determine substitution eligibility:

Amplifier Type: J-FET or General Purpose
Number of Circuits: 1
Package / Case: 8-SOIC (0.154", 3.90mm Width)
Mounting Type: Surface Mount
Voltage - Supply Span: Minimum 6V to 9V; Maximum 36V to 40V
Operating Temperature Range: 0°C to 70°C or extended range
RoHS Compliance: ROHS3 Compliant preferred

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Slew Rate (V/µs)	GBW (MHz)	Input Bias (pA)	Input Offset (mV)	Supply Current (mA)	Output Current (mA)	Supply Min (V)	Supply Max (V)	Temp Range (°C)	Status
TL071ACD	STMicroelectronics	J-FET	16	4	20	3	1.4	40	6	36	0 to 70	Obsolete
TL071CD	onsemi	J-FET	16	5.25	20	3	1.4	40	6	36	0 to 70	Obsolete
TL071ID	STMicroelectronics	J-FET	16	4	20	3	1.4	40	6	36	-40 to 105	Obsolete
LF356M/NOPB	Texas Instruments	J-FET	12	5	30	3	5	—	30	30	0 to 70	Active
LF356MX/NOPB	Texas Instruments	J-FET	12	5	30	3	5	—	30	30	0 to 70	Active
LT1793CS8#PBF	Analog Devices Inc.	J-FET	3.4	4.2	4	0.25	4.2	—	9	40	0 to 70	Active
LT1793IS8#PBF	Analog Devices Inc.	J-FET	3.4	4.2	4	0.25	4.2	—	9	40	-40 to 85	Active
LT1793IS8#TRPBF	Analog Devices Inc.	J-FET	3.4	4.2	4	0.25	4.2	—	9	40	-40 to 85	Active
LT1793CS8#TRPBF	Analog Devices Inc.	J-FET	3.4	4.2	4	0.25	4.2	—	9	40	0 to 70	Active
MC33071ADR2G	onsemi	General Purpose	13	4.5	100	0.5	1.9	30	3	44	-40 to 85	Active
MC33071DR2G	onsemi	General Purpose	13	4.5	100	1	1.9	30	3	44	-40 to 85	Active

Engineering Selection Recommendations

Direct Substitutes (Pin-Compatible Replacement)

The TL071ID manufactured by STMicroelectronics provides direct electrical and mechanical compatibility with the TL071ACD. Both devices share identical J-FET amplifier architecture, slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, and output current specifications. The TL071ID operates across an extended temperature range (-40°C to 105°C) compared to the TL071ACD (0°C to 70°C), providing superior thermal performance for demanding applications. Both parts maintain ROHS3 compliance and unlimited moisture sensitivity rating. The TL071ID is classified as obsolete but remains available in inventory.

The TL071CD manufactured by onsemi offers equivalent electrical performance with a higher gain bandwidth product of 5.25 MHz versus 4 MHz on the TL071ACD. All other critical parameters including slew rate, input bias current, input offset voltage, supply current, and output current remain identical. The TL071CD operates within the same supply voltage range (6V to 36V) and temperature range (0°C to 70°C). This part is classified as obsolete and non-compliant with RoHS standards.

Active Substitutes (Functional Equivalence)

The LT1793 series (LT1793CS8#PBF, LT1793IS8#PBF, LT1793IS8#TRPBF, LT1793CS8#TRPBF) manufactured by Analog Devices Inc. provides J-FET amplifier functionality with superior input bias current (4 pA versus 20 pA) and input offset voltage (250 µV versus 3 mV). These devices exhibit lower slew rate (3.4 V/µs versus 16 V/µs) and higher supply current (4.2 mA versus 1.4 mA). The LT1793 series operates across an extended supply voltage range (9V to 40V minimum to maximum) and maintains ROHS3 compliance. All variants are classified as active products with current production status. The LT1793IS8#PBF and LT1793IS8#TRPBF variants support extended operating temperature range (-40°C to 85°C).

The LF356 series (LF356M/NOPB, LF356MX/NOPB) manufactured by Texas Instruments provides J-FET amplifier functionality with comparable gain bandwidth product (5 MHz) and input offset voltage (3 mV). These devices exhibit lower slew rate (12 V/µs versus 16 V/µs) and higher supply current (5 mA versus 1.4 mA). The LF356 series operates at fixed supply voltage (±15V) and maintains ROHS3 compliance. Both variants are classified as active products. The LF356MX/NOPB variant offers higher inventory availability (90,234 pieces).

The MC33071 series (MC33071ADR2G, MC33071DR2G) manufactured by onsemi provides general-purpose amplifier functionality with comparable gain bandwidth product (4.5 MHz) and slew rate (13 V/µs). These devices feature higher input bias current (100 nA versus 20 pA) and input offset voltage (500 µV to 1 mV versus 3 mV). The MC33071 series operates across an extended supply voltage range (3V to 44V) and supports extended operating temperature range (-40°C to 85°C). Both variants are classified as active products with ROHS3 compliance.

Compliance and Availability Considerations

For applications requiring RoHS3 compliance, the TL071ID, LT1793 series, LF356 series, and MC33071 series are suitable selections. The TL071CD does not meet RoHS compliance requirements.

For applications requiring extended operating temperature range beyond 0°C to 70°C, the TL071ID (-40°C to 105°C), LT1793IS8#PBF, LT1793IS8#TRPBF, MC33071ADR2G, and MC33071DR2G (-40°C to 85°C) provide enhanced thermal performance.

For applications requiring active product status and current manufacturing support, the LT1793 series, LF356 series, and MC33071 series are recommended selections.

Frequently Asked Questions (FAQ)

Q: Can the TL071ID be used as a direct replacement for the TL071ACD?

A: Yes. The TL071ID provides pin-for-pin compatibility and identical electrical specifications including slew rate (16 V/µs), gain bandwidth product (4 MHz), input bias current (20 pA), input offset voltage (3 mV), supply current (1.4 mA), and output current (40 mA). Both devices operate within the same supply voltage range (6V to 36V) and package configuration (8-SOIC). The TL071ID supports an extended operating temperature range (-40°C to 105°C) compared to the TL071ACD (0°C to 70°C).

Q: What are the key differences between the TL071ACD and the LT1793 series?

A: The LT1793 series exhibits superior input bias current (4 pA versus 20 pA) and input offset voltage (250 µV versus 3 mV), resulting in lower noise and offset drift characteristics. However, the LT1793 series operates at lower slew rate (3.4 V/µs versus 16 V/µs) and higher supply current (4.2 mA versus 1.4 mA). The LT1793 series requires minimum supply voltage of 9V compared to 6V for the TL071ACD. Both device families maintain J-FET amplifier architecture and 8-SOIC package configuration.

Q: Is the MC33071 series suitable for applications requiring J-FET input characteristics?

A: The MC33071 series is classified as general-purpose amplifier rather than J-FET amplifier. While the MC33071 series provides comparable gain bandwidth product (4.5 MHz) and slew rate (13 V/µs), it exhibits significantly higher input bias current (100 nA versus 20 pA) and input offset voltage (500 µV to 1 mV versus 3 mV). Applications requiring the low input bias current and low input offset voltage characteristics of J-FET amplifiers should prioritize the TL071ID, LT1793 series, or LF356 series.

Q: What packaging options are available for substitute parts?

A: All substitute parts maintain the 8-SOIC (0.154", 3.90mm Width) surface mount package configuration compatible with the TL071ACD. Packaging variants include Tube, Cut Tape (CT), and Tape & Reel (TR) options. The LT1793 series and MC33071 series offer multiple packaging configurations to accommodate different procurement and assembly requirements. The LF356 series is available in Tube and Cut Tape & Digi-Reel® packaging.

Q: Which substitute part offers the highest inventory availability?

A: The LF356MX/NOPB manufactured by Texas Instruments offers the highest inventory availability with 90,234 pieces in stock. This device provides J-FET amplifier functionality with 5 MHz gain bandwidth product and 12 V/µs slew rate. The LF356MX/NOPB is classified as an active product with ROHS3 compliance and is available in Cut Tape and Digi-Reel® packaging.

Q: Are all substitute parts RoHS3 compliant?

A: The TL071ID, LT1793 series, LF356 series, and MC33071 series are RoHS3 compliant. The TL071CD is not RoHS3 compliant. For applications requiring RoHS compliance, the TL071ID or active substitute parts (LT1793 series, LF356 series, MC33071 series) are recommended selections.

Q: What is the significance of the extended operating temperature range on the TL071ID?

A: The TL071ID supports operating temperature range of -40°C to 105°C compared to 0°C to 70°C on the TL071ACD. Extended temperature range capability enables deployment in industrial, automotive, and environmental applications subject to extreme thermal conditions. The TL071ID maintains identical electrical specifications across the extended temperature range, ensuring consistent performance in demanding thermal environments.

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