MCP4641T-503E/ST Equivalent & Substitute Parts

Part Overview

The MCP4641T-503E/ST is a digital potentiometer manufactured by Microchip Technology, classified as a Data Acquisition component. This device features a 50kΩ resistance with 2 circuits and 129 taps, utilizing an I2C interface for control and non-volatile memory for settings retention. The part is actively produced and widely used in applications requiring programmable resistance adjustment. Finding equivalent or substitute parts may be necessary due to supply constraints, packaging preferences, or specific application requirements while maintaining identical electrical and mechanical specifications.

Substiute Parts

MCP4641T-503E/ST

Microchip TechnologyIn Stock: 3491MCP4641T-503E/ST Datasheet

Current PartRFQ

MCP4641-503E/ST

Microchip TechnologyIn Stock: 3797MCP4641-503E/ST Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MCP4641T-503E/ST is determined by strict equivalence across the following critical parameters:

• Resistance value: 50kΩ
• Number of circuits: 2
• Number of taps: 129
• Interface protocol: I2C
• Memory type: Non-Volatile
• Supply voltage range: 1.8V ~ 5.5V
• Package type: 14-TSSOP
• Operating temperature range: -40°C ~ 125°C
• Tolerance: ±20%
• Temperature coefficient: 150ppm/°C

The primary distinction between the main part and identified substitutes is packaging format. The MCP4641T-503E/ST is supplied in Tape & Reel (TR) format, while the substitute MCP4641-503E/ST is supplied in Tube format. Both parts share identical electrical specifications, mechanical dimensions, and functional characteristics.

Parameter Comparison

Engineering Selection Recommendations

Both the MCP4641T-503E/ST and MCP4641-503E/ST are active products from Microchip Technology with identical electrical and mechanical specifications. Selection between these parts should be based on packaging requirements and supply chain considerations:

• Choose MCP4641T-503E/ST (Tape & Reel) for high-volume automated assembly operations requiring reel-based component feeding.
• Choose MCP4641-503E/ST (Tube) for lower-volume applications, manual assembly processes, or when tube packaging is preferred for handling and storage.

Both parts maintain ROHS3 compliance and are suitable for applications operating within the -40°C to 125°C temperature range with supply voltages from 1.8V to 5.5V.

Frequently Asked Questions (FAQ)

Q: Can MCP4641-503E/ST (Tube) be used as a direct replacement for MCP4641T-503E/ST (Tape & Reel)?

A: Yes. Both parts are electrically and mechanically identical. The only difference is packaging format. Substitution is valid for any application where the component specifications match the design requirements.

Q: Are there any functional differences between the Tape & Reel and Tube versions?

A: No. Both versions contain identical die, electrical performance, and specifications. Packaging format does not affect component functionality, performance, or reliability.

Q: What are the key parameters that must match for substitution?

A: Critical parameters include 50kΩ resistance, 2 circuits, 129 taps, I2C interface, non-volatile memory, 1.8V to 5.5V supply voltage, 14-TSSOP package, -40°C to 125°C operating temperature, ±20% tolerance, and 150ppm/°C temperature coefficient.

Q: Is the 14-TSSOP package dimension identical between both parts?

A: Yes. Both parts use the 14-TSSOP package with 0.173" width and 4.40mm width specification. PCB footprints and assembly processes are identical.

Q: Do both parts support I2C communication with selectable addressing?

A: Yes. Both MCP4641T-503E/ST and MCP4641-503E/ST feature I2C interface with selectable address capability and non-volatile memory for storing wiper position settings.