TSH71CD Equivalent & Substitute Parts

Part Overview

The TSH71CD is a general-purpose operational amplifier manufactured by STMicroelectronics, housed in an 8-SOIC surface-mount package. This device is classified as obsolete, necessitating identification of active equivalent components for new designs and ongoing production requirements. The TSH71CD features rail-to-rail output capability with a 65 MHz gain-bandwidth product and operates across a 3V to 12V supply range. Due to its obsolete status, substitute parts with compatible electrical and mechanical specifications are required to maintain design continuity and ensure component availability.

Substiute Parts

TSH71CD

STMicroelectronicsIn Stock: 6328TSH71CD Datasheet

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AD8041ARZ

Analog Devices Inc.In Stock: 10001AD8041ARZ Datasheet

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AD8041ARZ-REEL

Analog Devices Inc.In Stock: 3133AD8041ARZ-REEL Datasheet

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AD8041ARZ-REEL7

Analog Devices Inc.In Stock: 24598AD8041ARZ-REEL7 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the TSH71CD is determined by compatibility across the following critical parameters: identical package type (8-SOIC surface mount), matching output configuration (rail-to-rail), compatible supply voltage range (3V to 12V minimum and maximum), and functional equivalence as a single-circuit operational amplifier. The substitute parts identified—AD8041ARZ, AD8041ARZ-REEL, and AD8041ARZ-REEL7—all share the same physical package dimensions and electrical interface requirements. These Analog Devices components maintain the same mounting type, package footprint, and supply voltage specifications, enabling direct substitution at the circuit board level. The primary distinction among substitute options relates to product status (active versus obsolete), packaging format (tube, reel, or cut tape), and enhanced electrical performance characteristics that remain within acceptable operating parameters for general-purpose amplifier applications.

Parameter Comparison

Engineering Selection Recommendations

The AD8041ARZ, AD8041ARZ-REEL, and AD8041ARZ-REEL7 are direct substitutes for the obsolete TSH71CD. All three variants are manufactured by Analog Devices Inc. and maintain active product status, ensuring long-term availability and supply chain continuity. These components share identical electrical interface specifications, package geometry, and compliance certifications (ROHS3 Compliant, REACH Unaffected, MSL 1).

The primary selection criterion among the three AD8041 variants is packaging format. The AD8041ARZ is supplied in tube packaging, the AD8041ARZ-REEL is supplied in reel format, and the AD8041ARZ-REEL7 is supplied in cut tape with Digi-Reel packaging. Selection should be based on procurement requirements and assembly process compatibility.

All substitute parts demonstrate enhanced electrical performance relative to the TSH71CD, including higher slew rate (170V/µs versus 118V/µs), increased bandwidth (170 MHz versus 100 MHz), and reduced supply current (5.8mA versus 9.8mA). The substitute parts also support an extended operating temperature range (-40°C to 85°C versus 0°C to 70°C), providing greater thermal flexibility for diverse application environments.

Frequently Asked Questions (FAQ)

Q: Can the AD8041ARZ directly replace the TSH71CD without circuit modifications?

A: Yes. The AD8041ARZ maintains identical package dimensions (8-SOIC), supply voltage range (3V to 12V), and rail-to-rail output configuration. Pin-to-pin compatibility and electrical interface specifications are equivalent, enabling direct substitution at the circuit board level without design changes.

Q: What is the difference between AD8041ARZ, AD8041ARZ-REEL, and AD8041ARZ-REEL7?

A: These three part numbers represent the same integrated circuit with identical electrical specifications and package type. The differences are limited to packaging format: AD8041ARZ is supplied in tube packaging, AD8041ARZ-REEL is supplied in reel format, and AD8041ARZ-REEL7 is supplied in cut tape with Digi-Reel packaging. Selection depends on procurement and assembly process requirements.

Q: Are the substitute parts compliant with the same regulatory standards as the TSH71CD?

A: Yes. All substitute parts (AD8041ARZ, AD8041ARZ-REEL, AD8041ARZ-REEL7) are ROHS3 Compliant, REACH Unaffected, and classified as MSL 1 (Unlimited moisture sensitivity level), matching the compliance profile of the TSH71CD.

Q: What are the key electrical differences between the TSH71CD and AD8041 substitutes?

A: The AD8041 variants provide enhanced performance: slew rate of 170V/µs (versus 118V/µs), -3dB bandwidth of 170 MHz (versus 100 MHz), reduced input bias current of 1.2µA (versus 6µA), and lower supply current of 5.8mA (versus 9.8mA). These improvements are compatible with general-purpose amplifier applications and do not introduce substitution constraints.

Q: Does the extended operating temperature range of the AD8041 affect substitution suitability?

A: No. The AD8041 operating range of -40°C to 85°C encompasses the TSH71CD range of 0°C to 70°C. The extended temperature capability provides additional design flexibility without introducing compatibility issues for applications within the original TSH71CD temperature specification.

Q: Are there inventory considerations when selecting among the three AD8041 variants?

A: Yes. Current inventory levels differ: AD8041ARZ-REEL7 has 24,565 units in stock, AD8041ARZ has 9,910 units, and AD8041ARZ-REEL has 3,100 units. Procurement decisions should account for both immediate requirements and long-term supply availability.