TL071ACD Equivalent & Substitute Parts

Part Overview

The TL071ACD is a J-FET input operational amplifier manufactured by Texas Instruments in 8-SOIC surface mount packaging. This device is classified as obsolete, though 4066 pieces remain available in new original stock. The TL071ACD serves as a precision amplifier for applications requiring low input bias current and low input offset voltage characteristics typical of J-FET amplifier designs.

Due to its obsolete status, identifying equivalent and substitute parts is necessary for design continuity, long-term supply assurance, and new production planning. Active alternatives with compatible electrical and mechanical specifications are available from multiple manufacturers.

Key Parameters

Parameter	Value	Unit
Amplifier Type	J-FET	—
Number of Circuits	1	—
Slew Rate	13	V/µs
Gain Bandwidth Product	5.25	MHz
Current - Input Bias	65	pA
Voltage - Input Offset	3	mV
Current - Supply	1.4	mA
Voltage - Supply Span (Min)	10	V
Voltage - Supply Span (Max)	30	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 TL071ACD is determined by strict alignment of electrical and mechanical parameters within the following criteria:

Primary Substitution Group (Direct Equivalents): Parts maintaining identical or superior J-FET amplifier characteristics with matching 8-SOIC packaging, supply voltage range, and operating temperature specifications. These include TL071ACDR, TL071CDT, TL071ACDT, and TL071IDT.

Secondary Substitution Group (Compatible Alternatives): Parts with J-FET amplifier topology and 8-SOIC packaging but with variations in slew rate, gain bandwidth product, or input bias current within acceptable engineering tolerances. The LF356M/NOPB falls into this category.

Extended Substitution Group (General Purpose Alternatives): General purpose amplifiers in 8-SOIC packaging with compatible supply voltage ranges and operating temperatures. These include MC33071DR2G, MC34071DR2G, and MC33171DT. These parts differ in amplifier type classification but maintain mechanical and basic electrical compatibility.

Key Parameters Determining Substitution:

Amplifier Type (J-FET vs. General Purpose)
Package / Case (8-SOIC form factor)
Slew Rate (13 V/µs nominal)
Gain Bandwidth Product (5.25 MHz nominal)
Input Bias Current (65 pA nominal)
Supply Voltage Range (10–30 V)
Operating Temperature Range (0–70°C minimum)
RoHS and MSL Compliance

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Slew Rate (V/µs)	GBW (MHz)	Input Bias (pA)	Supply Min (V)	Supply Max (V)	Temp Range (°C)	Status	Inventory
TL071ACD	Texas Instruments	J-FET	13	5.25	65	10	30	0 to 70	Obsolete	4066
TL071ACDR	Texas Instruments	J-FET	13	5.25	65	10	30	0 to 70	Active	12700
TL071CDT	STMicroelectronics	J-FET	16	4	20	6	36	0 to 70	Active	6375
TL071ACDT	STMicroelectronics	J-FET	16	4	20	6	36	0 to 70	Active	2278
TL071IDT	STMicroelectronics	J-FET	16	4	20	6	36	-40 to 105	Active	17800
LF356M/NOPB	Texas Instruments	J-FET	12	5	30	30	30	0 to 70	Active	30916
MC33071DR2G	onsemi	General Purpose	13	4.5	100	3	44	-40 to 85	Active	3808
MC34071DR2G	onsemi	General Purpose	13	4.5	100	3	44	0 to 70	Active	2001
MC33171DT	STMicroelectronics	General Purpose	2	2.1	20	4	44	-40 to 105	Active	5400

Engineering Selection Recommendations

For Direct Replacement (Preferred):

The TL071ACDR is the primary recommended substitute. Manufactured by Texas Instruments, it maintains identical electrical specifications to the TL071ACD while offering active product status and significantly higher inventory availability (12700 units). Both parts are ROHS3 compliant with MSL 1 rating. The packaging format differs only in delivery method (Cut Tape & Digi-Reel® versus Tube), which does not affect circuit performance.

For Active Supply Assurance:

The TL071IDT offers the highest inventory level (17800 units) among J-FET alternatives and extends the operating temperature range to -40°C to 105°C. Manufactured by STMicroelectronics, this part maintains J-FET amplifier topology and 8-SOIC packaging. Minor electrical variations include increased slew rate (16 V/µs) and reduced input bias current (20 pA), both favorable characteristics. This part is suitable for applications requiring extended temperature performance.

For Cost-Optimized Selection:

The MC34071DR2G provides general purpose amplifier functionality in 8-SOIC packaging with matching slew rate (13 V/µs) and operating temperature range (0–70°C). Manufactured by onsemi, this part offers lower input bias current (100 nA) and broader supply voltage range (3–44 V). Selection of this part requires verification that general purpose amplifier characteristics are acceptable for the target application.

For Extended Temperature Applications:

The MC33171DT supports -40°C to 105°C operation with ROHS3 compliance. This part is suitable only if reduced slew rate (2 V/µs) and gain bandwidth product (2.1 MHz) are acceptable for the application.

All recommended substitutes maintain ROHS3 compliance, MSL 1 rating, and 8-SOIC surface mount packaging compatible with existing PCB designs.

Frequently Asked Questions (FAQ)

Q: Can the TL071ACDR be used as a direct replacement for the TL071ACD?

A: Yes. The TL071ACDR maintains identical electrical specifications including slew rate (13 V/µs), gain bandwidth product (5.25 MHz), input bias current (65 pA), and supply voltage range (10–30 V). Both are J-FET amplifiers in 8-SOIC packaging. The only difference is packaging format (Cut Tape & Digi-Reel® versus Tube), which does not affect circuit performance. Both are ROHS3 compliant with MSL 1 rating.

Q: What is the difference between J-FET and General Purpose amplifier types?

A: J-FET amplifiers feature extremely low input bias current (typically in picoamperes) and high input impedance, making them suitable for high-impedance signal sources and precision measurement applications. General purpose amplifiers typically have higher input bias current (nanoamperes) but offer broader supply voltage ranges and extended temperature operation. Selection depends on application requirements for input impedance and bias current characteristics.

Q: Why does the LF356M/NOPB have a fixed supply voltage of 30 V?

A: The LF356M/NOPB is specified with a fixed supply voltage of 30 V, indicating it is optimized for single-supply operation at this voltage level. This differs from the TL071ACD, which accepts a range of 10–30 V. Applications requiring flexible supply voltage selection should use TL071 series alternatives instead.

Q: Can I use MC33171DT as a substitute if my application requires 13 V/µs slew rate?

A: No. The MC33171DT has a slew rate of only 2 V/µs, which is significantly lower than the TL071ACD specification of 13 V/µs. This part is unsuitable for applications with high-frequency signal requirements or fast transient response needs. Use TL071 series or MC33071/MC34071 series alternatives for matching slew rate performance.

Q: Are all substitute parts available in the same 8-SOIC package?

A: Yes. All substitute parts listed are available in 8-SOIC (0.154", 3.90mm Width) surface mount packaging, ensuring mechanical compatibility with existing PCB designs. Differences in packaging format (Tube, Cut Tape, Tape & Reel) refer to delivery and handling methods only and do not affect component functionality or PCB mounting.

Q: What is the significance of the extended temperature range in TL071IDT (-40°C to 105°C)?

A: The TL071IDT supports operation across a wider temperature range than the TL071ACD (0–70°C). This extended range is beneficial for industrial, automotive, or outdoor applications subject to extreme environmental conditions. If your application operates only within 0–70°C, the standard TL071ACDR is sufficient and typically more cost-effective.

Q: Do all substitute parts maintain ROHS3 compliance?

A: Yes. All substitute parts listed are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, matching the environmental and regulatory compliance of the TL071ACD. This ensures compatibility with modern manufacturing processes and regulatory requirements.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message