MCP665T-E/UN Equivalent & Substitute Parts

Part Overview

The MCP665T-E/UN is a general purpose operational amplifier manufactured by Microchip Technology, configured as a dual-channel (2 circuit) rail-to-rail amplifier in a 10-MSOP surface mount package. The device operates across a 2.5 V to 5.5 V supply range with an operating temperature range of -40°C to 125°C. This part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Equivalent and substitute parts are identified when alternative components meet the same electrical specifications, mechanical compatibility requirements, and environmental compliance standards. Substitute parts enable design flexibility, support supply chain continuity, and provide options across different packaging formats while maintaining functional equivalence.

Substiute Parts

MCP665T-E/UN

Microchip TechnologyIn Stock: 1006MCP665T-E/UN Datasheet

Current PartRFQ

OPA2357AIDGSR

Texas InstrumentsIn Stock: 1611OPA2357AIDGSR Datasheet

MFR RecommendedRFQ

OPA2357AIDGST

Texas InstrumentsIn Stock: 3411OPA2357AIDGST Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MCP665T-E/UN are identified based on strict electrical and mechanical compatibility criteria. The following parameters define substitution eligibility:

Mandatory Matching Parameters:

• Number of Circuits: 2 (dual-channel configuration)
• Output Type: Rail-to-Rail
• Voltage - Supply Span: 2.5 V minimum to 5.5 V maximum
• Operating Temperature Range: -40°C to 125°C
• Mounting Type: Surface Mount
• Package Compatibility: 10-pin MSOP/VSSOP footprint

Performance Parameters (Allowable Variation): Substitute parts may exceed the MCP665T-E/UN specifications in slew rate, gain bandwidth product, input bias current, and output current per channel. These enhancements do not compromise compatibility and provide improved performance margins.

The OPA2357AIDGSR and OPA2357AIDGST (Texas Instruments) meet all mandatory matching criteria. Both are CMOS dual-channel rail-to-rail amplifiers with identical electrical specifications and supply voltage compatibility. The primary distinction between these substitutes is packaging format: OPA2357AIDGSR is supplied in Cut Tape (CT) & Digi-Reel® format, while OPA2357AIDGST is supplied in Tape & Reel (TR) format.

Parameter Comparison

Engineering Selection Recommendations

Compliance & Certification Status: All three parts (MCP665T-E/UN, OPA2357AIDGSR, OPA2357AIDGST) are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99. All parts maintain active production status.

Moisture Sensitivity Consideration: The MCP665T-E/UN carries MSL 1 (unlimited shelf life), while both OPA2357 variants carry MSL 2 (1-year shelf life). This difference affects storage and handling requirements but does not impact functional compatibility in applications.

Performance Enhancement: The OPA2357 substitutes provide superior electrical performance: slew rate of 150 V/µs (versus 32 V/µs), gain bandwidth product of 100 MHz (versus 60 MHz), and lower input bias current of 3 pA (versus 6 pA). These enhancements are compatible with all circuit topologies designed for the MCP665T-E/UN.

Packaging Format Selection: OPA2357AIDGST (Tape & Reel) is suitable for high-volume automated assembly operations. OPA2357AIDGSR (Cut Tape & Digi-Reel®) supports lower-volume or mixed-component procurement workflows.

Frequently Asked Questions (FAQ)

Q: Can OPA2357AIDGSR or OPA2357AIDGST be used as direct replacements for MCP665T-E/UN?

A: Yes. Both OPA2357 variants meet all mandatory electrical and mechanical compatibility criteria: dual-channel configuration, rail-to-rail output, identical supply voltage range (2.5 V to 5.5 V), matching operating temperature range (-40°C to 125°C), and compatible 10-pin surface mount packaging. The OPA2357 devices provide enhanced performance specifications without compromising circuit functionality.

Q: What is the difference between OPA2357AIDGSR and OPA2357AIDGST?

A: Both parts are electrically and functionally identical. The difference is packaging format: OPA2357AIDGSR is supplied in Cut Tape (CT) & Digi-Reel® format, while OPA2357AIDGST is supplied in Tape & Reel (TR) format. Selection depends on assembly process requirements and procurement volume.

Q: Are there package footprint compatibility issues between 10-MSOP and 10-VSSOP?

A: Both packages are 10-pin surface mount devices with 0.118" (3.00 mm) width. While designated as different package types (MSOP versus VSSOP), both are mechanically compatible with standard 10-pin TFSOP footprints used in PCB designs. Verify specific footprint dimensions with component datasheets for your application.

Q: Does the lower moisture sensitivity level (MSL 2) of OPA2357 variants affect reliability?

A: MSL 2 (1-year shelf life) indicates standard moisture sensitivity handling requirements. This does not affect in-service reliability or performance. Storage and handling must follow standard practices for MSL 2 components. The MCP665T-E/UN's MSL 1 rating provides extended shelf life but does not provide superior operational performance.

Q: What are the performance advantages of OPA2357 over MCP665T-E/UN?

A: The OPA2357 provides higher slew rate (150 V/µs versus 32 V/µs), higher gain bandwidth product (100 MHz versus 60 MHz), lower input bias current (3 pA versus 6 pA), and higher output current per channel (100 mA versus 90 mA). These improvements support faster signal processing and lower noise applications while maintaining full compatibility with MCP665T-E/UN circuit designs.

Q: Are all three parts RoHS compliant?

A: Yes. MCP665T-E/UN, OPA2357AIDGSR, and OPA2357AIDGST are all ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.