TL061CPSR Equivalent & Substitute Parts

Part Overview

The TL061CPSR is a J-FET input operational amplifier manufactured by Texas Instruments, housed in an 8-SO surface mount package with tape and reel packaging. This device is classified as a Last Time Buy product, indicating discontinued production with limited remaining inventory of 4,216 pieces. The TL061CPSR serves applications requiring low input bias current and high input impedance characteristics inherent to J-FET amplifier designs. Identification of equivalent and substitute parts is necessary due to the Last Time Buy status and to ensure long-term design continuity and supply chain reliability.

Substiute Parts

TL061CPSR

Texas InstrumentsIn Stock: 4317TL061CPSR Datasheet

Current PartRFQ

TL061CDR

Texas InstrumentsIn Stock: 55443TL061CDR Datasheet

MFR RecommendedRFQ

MC33171DR2G

onsemiIn Stock: 31603MC33171DR2G Datasheet

MFR RecommendedRFQ

TL061ACDT

STMicroelectronicsIn Stock: 1506TL061ACDT Datasheet

MFR RecommendedRFQ

TL061CDT

STMicroelectronicsIn Stock: 2820TL061CDT Datasheet

MFR RecommendedRFQ

TL061IDT

STMicroelectronicsIn Stock: 2517TL061IDT Datasheet

MFR RecommendedRFQ

UA741CD

Texas InstrumentsIn Stock: 38358UA741CD Datasheet

MFR RecommendedRFQ

UA741CDT

STMicroelectronicsIn Stock: 82224UA741CDT Datasheet

MFR RecommendedRFQ

UA741ID

STMicroelectronicsIn Stock: 1372UA741ID Datasheet

MFR RecommendedRFQ

UA741IDT

STMicroelectronicsIn Stock: 9257UA741IDT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TL061CPSR are categorized based on the following substitution criteria:

Primary Substitutes (Direct Equivalents): Parts sharing identical amplifier type (J-FET), circuit count (1), slew rate (3.5 V/µs), gain bandwidth product (1 MHz), input bias current (30 pA), input offset voltage (3 mV), and supply current (200 µA). These parts maintain functional equivalence with the TL061CPSR across all critical electrical parameters. Package variations within the 8-SOIC family and different tape/reel configurations are acceptable within this category.

Secondary Substitutes (Functional Alternatives): Parts with different amplifier type (General Purpose instead of J-FET) but compatible electrical operating ranges, supply voltage spans, and 8-SOIC packaging. These parts operate within overlapping parameter ranges but exhibit different input bias current characteristics and slew rate performance.

Key Parameters Determining Substitution:

• Amplifier Type (J-FET vs. General Purpose)
• Slew Rate (3.5 V/µs for primary substitutes)
• Gain Bandwidth Product (1 MHz)
• Input Bias Current (30 pA for J-FET types)
• Supply Voltage Range compatibility
• Package form factor (8-SOIC)
• Operating temperature range

Parameter Comparison

Engineering Selection Recommendations

For Direct Functional Replacement:

The TL061CDR, TL061ACDT, TL061CDT, and TL061IDT are direct electrical equivalents to the TL061CPSR, all maintaining J-FET amplifier architecture with identical slew rate, gain bandwidth product, input bias current, and input offset voltage specifications. These parts are all Active status products with current manufacturing support. The TL061CDR from Texas Instruments provides the closest match with identical supply voltage range (7 V to 36 V). The STMicroelectronics variants (TL061ACDT, TL061CDT, TL061IDT) offer lower minimum supply voltage (6 V) and extended temperature range options (TL061IDT: -40°C to 105°C), providing design flexibility for applications requiring broader operating conditions.

For Extended Temperature Range Applications:

The TL061IDT supports operating temperatures from -40°C to 105°C, compared to the TL061CPSR's 0°C to 70°C range. This part is suitable for industrial and automotive applications requiring wider temperature performance.

For General Purpose Amplifier Applications:

The UA741 series (UA741CDT, UA741ID, UA741IDT) provides functional alternatives with Active product status and extended supply voltage ranges (10 V to 44 V). These parts exhibit lower slew rate (0.5 V/µs) and higher input bias current (10 nA) compared to the TL061CPSR, making them suitable for applications where J-FET input characteristics are not critical. The UA741IDT offers the widest operating temperature range (-40°C to 105°C) among the UA741 variants.

Compliance and Certification:

All substitute parts listed maintain ROHS3 compliance, MSL Level 1 (Unlimited), REACH Unaffected status, and EAR99 ECCN classification, matching the TL061CPSR's regulatory profile.

Frequently Asked Questions (FAQ)

Q: Can I directly replace TL061CPSR with TL061CDR?

A: Yes. The TL061CDR is electrically equivalent to the TL061CPSR with identical J-FET amplifier specifications, slew rate (3.5 V/µs), gain bandwidth product (1 MHz), input bias current (30 pA), and supply voltage range (7 V to 36 V). The primary difference is packaging format: TL061CDR uses Cut Tape & Digi-Reel packaging versus the TL061CPSR's Tape & Reel format. Both use 8-SOIC surface mount packages with compatible pinouts.

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

A: J-FET input amplifiers (TL061 series) feature extremely low input bias current (30 pA) and high input impedance, making them suitable for high-impedance signal sources and precision measurement applications. General Purpose amplifiers (UA741 series) have higher input bias current (10 nA to 80 nA) and lower input impedance but offer lower cost and broader supply voltage ranges. Selection depends on application requirements for input impedance and bias current performance.

Q: Can I use UA741CDT as a substitute for TL061CPSR?

A: The UA741CDT is functionally compatible but not electrically identical. Both operate at 1 MHz gain bandwidth product and support 7 V to 36 V supply range (UA741CDT: 10 V to 44 V). However, the UA741CDT exhibits significantly lower slew rate (0.5 V/µs versus 3.5 V/µs) and higher input bias current (10 nA versus 30 pA). Use UA741CDT only in applications where these performance differences are acceptable.

Q: Why does TL061IDT have a different temperature range than TL061CPSR?

A: The TL061IDT is manufactured to industrial temperature specifications (-40°C to 105°C) versus the TL061CPSR's commercial specifications (0°C to 70°C). This reflects different manufacturing test and qualification standards. The TL061IDT is suitable for applications requiring extended temperature performance without electrical parameter changes.

Q: Are all substitute parts available in the same package size?

A: No. The TL061CPSR uses 8-SOIC with 5.30mm width, while most substitute parts use 8-SOIC with 3.90mm width. Both are surface mount packages with identical pinout and electrical compatibility. The 3.90mm width represents a more compact form factor. Verify PCB layout compatibility before substitution.

Q: What is the significance of "Last Time Buy" status?

A: Last Time Buy indicates the manufacturer has discontinued production and will not accept new orders after a specified date. The TL061CPSR and UA741CD are both Last Time Buy products. Substitution with Active status parts (TL061CDR, TL061CDT, TL061IDT, UA741CDT, UA741IDT) ensures long-term supply availability and design continuity.

Q: Do all substitute parts meet the same compliance standards?

A: Yes. All listed substitute parts maintain ROHS3 compliance, MSL Level 1 (Unlimited moisture sensitivity), REACH Unaffected status, and EAR99 ECCN classification, matching the TL061CPSR's regulatory requirements.

Q: Which substitute offers the best inventory availability?

A: The UA741CDT from STMicroelectronics has the highest inventory level at 82,190 pieces. The TL061CDR from Texas Instruments has 55,400 pieces. Both are Active status products with robust supply chains.