TL072CPSR Equivalent & Substitute Parts

Part Overview

The TL072CPSR is a J-FET input operational amplifier manufactured by Texas Instruments, configured as a dual-channel (2 circuit) device in an 8-SO surface mount package. This device is classified as Last Time Buy, indicating discontinued production with limited remaining inventory of 5249 pieces. The TL072CPSR operates across a supply voltage range of 10V to 30V and is suitable for applications requiring low input bias current and moderate bandwidth characteristics. Substitute parts are necessary due to product status discontinuation and to ensure long-term design continuity and supply chain reliability.

Substiute Parts

TL072CPSR

Texas InstrumentsIn Stock: 5352TL072CPSR Datasheet

Current PartRFQ

TL072IDR

Texas InstrumentsIn Stock: 35270TL072IDR Datasheet

MFR RecommendedRFQ

MC33172D

STMicroelectronicsIn Stock: 100501MC33172D Datasheet

MFR RecommendedRFQ

MC33172DT

STMicroelectronicsIn Stock: 45324MC33172DT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TL072CPSR is determined by the following critical parameters: amplifier type (J-FET vs. General Purpose), number of circuits (2), surface mount packaging compatibility, supply voltage range (10V to 30V minimum), input bias current characteristics (65 pA), and operating temperature range.

Primary Substitute (Highest Compatibility): TL072IDR maintains identical J-FET amplifier architecture, dual-channel configuration, and equivalent electrical performance specifications. This part is manufactured by the same supplier (Texas Instruments) and represents an active product with expanded operating temperature range and higher inventory availability.

Secondary Substitutes (Functional Equivalents with Parameter Variations): MC33172D and MC33172DT are General Purpose amplifiers manufactured by STMicroelectronics. These devices deviate from J-FET architecture but provide dual-channel 8-SOIC packaging and broader supply voltage range (4V to 44V). These substitutes introduce measurable differences in slew rate (2V/µs vs. 13V/µs), gain bandwidth product (2.1 MHz vs. 3 MHz), input bias current (20 nA vs. 65 pA), and supply current (220µA vs. 1.4mA per channel).

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Recommended Primary Path): TL072IDR is the preferred substitute for TL072CPSR discontinuation. Both devices maintain J-FET amplifier architecture with identical input bias current (65 pA) and slew rate (13V/µs) specifications. TL072IDR is an active product with significantly higher inventory (35200 pieces) and extended operating temperature range (-40°C to 85°C vs. 0°C to 70°C). Package dimensions differ (0.154" vs. 0.209" width), requiring PCB layout verification. Both parts are ROHS3 compliant and carry identical ECCN and HTSUS classifications.

For Functional Substitution (Secondary Path): MC33172D and MC33172DT provide dual-channel 8-SOIC packaging with broader supply voltage compatibility (4V to 44V). These General Purpose amplifiers introduce measurable performance trade-offs: reduced slew rate (2V/µs), lower gain bandwidth product (2.1 MHz), and significantly higher input bias current (20 nA). Supply current consumption is substantially lower (220µA vs. 1.4mA per channel). Extended operating temperature range (-40°C to 105°C) and higher inventory availability (100400 and 45300 pieces respectively) support long-term supply continuity. MC33172DT is supplied in Cut Tape & Digi-Reel packaging, matching the original TL072CPSR format.

Both substitute paths maintain ROHS3 compliance and are unaffected by REACH regulations.

Frequently Asked Questions (FAQ)

Q: Can TL072IDR directly replace TL072CPSR without circuit modifications?

A: TL072IDR maintains electrical equivalence in amplifier type, circuit count, slew rate, and input bias current. However, package dimensions differ (0.154" width vs. 0.209" width), requiring PCB footprint verification and potential layout adjustments. Electrical performance is compatible within the specified operating ranges.

Q: What are the key differences between TL072IDR and MC33172 series substitutes?

A: TL072IDR preserves J-FET amplifier architecture identical to TL072CPSR. MC33172D and MC33172DT are General Purpose amplifiers with different input stage topology. This results in: slew rate reduction from 13V/µs to 2V/µs, gain bandwidth product reduction from 3 MHz to 2.1 MHz, and input bias current increase from 65 pA to 20 nA. Supply current consumption decreases from 1.4mA to 220µA per channel. These differences affect circuit performance in high-speed and low-noise applications.

Q: Are MC33172D and MC33172DT interchangeable with each other?

A: MC33172D and MC33172DT are electrically identical. The distinction is packaging format: MC33172D is supplied in Tube packaging, while MC33172DT is supplied in Cut Tape & Digi-Reel format. Selection depends on procurement and assembly process requirements.

Q: What is the impact of the different package widths (0.209" vs. 0.154")?

A: Package width affects PCB footprint dimensions and component density. TL072CPSR uses 0.209" width (5.30mm), while TL072IDR, MC33172D, and MC33172DT use 0.154" width (3.90mm). Designs utilizing the narrower package allow increased board density. Existing PCB layouts designed for 0.209" width require modification to accommodate 0.154" width components.

Q: Does operating temperature range affect substitution suitability?

A: TL072CPSR operates 0°C to 70°C. TL072IDR extends this to -40°C to 85°C, and MC33172 series extends to -40°C to 105°C. If the original design operates within 0°C to 70°C, all substitutes are compatible. Applications requiring extended temperature operation benefit from TL072IDR or MC33172 series. Applications with temperature constraints below 0°C or above 70°C require verification against substitute specifications.

Q: How does the supply voltage range affect circuit design?

A: TL072CPSR and TL072IDR operate within 10V to 30V supply range. MC33172D and MC33172DT operate within 4V to 44V range. Designs utilizing supply voltages below 10V or above 30V require MC33172 series substitutes. Designs within the 10V to 30V window are compatible with all substitutes.

Q: What compliance certifications apply to all substitute options?

A: All parts (TL072CPSR, TL072IDR, MC33172D, MC33172DT) are ROHS3 compliant, carry MSL rating of 1 (Unlimited), are REACH unaffected, and share identical ECCN (EAR99) and HTSUS (8542.33.0001) classifications. Regulatory and environmental compliance is maintained across all substitution paths.