MCP42100T-I/ST Equivalent & Substitute Parts

Part Overview

The MCP42100T-I/ST is a digital potentiometer manufactured by Microchip Technology, classified as a data acquisition component. This integrated circuit provides 100k Ohm resistance with 2 circuits and 256 taps, controlled via SPI interface. The device is currently in active production status and is widely used in applications requiring programmable resistance adjustment without mechanical wear.

Alternative models may be necessary due to packaging availability, supply chain constraints, or specific application requirements regarding tape & reel versus tube packaging formats.

Substiute Parts

MCP42100T-I/ST

Microchip TechnologyIn Stock: 967MCP42100T-I/ST Datasheet

Current PartRFQ

MCP42100-I/ST

Microchip TechnologyIn Stock: 1000140MCP42100-I/ST Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MCP42100T-I/ST is determined by strict equivalence across the following critical parameters:

• Resistance value: 100k Ohm
• Circuit configuration: 2 circuits
• Tap resolution: 256 taps
• Control interface: SPI
• Supply voltage range: 2.7V ~ 5.5V
• Package type: 14-TSSOP
• Memory architecture: Volatile
• Operating temperature range: -40°C ~ 85°C

The primary distinction between the main part and its substitute relates to packaging format: tape & reel (TR) versus tube. Both formats contain identical die and electrical specifications, with differences limited to component presentation and handling during assembly operations.

Parameter Comparison

Engineering Selection Recommendations

Both MCP42100T-I/ST and MCP42100-I/ST are active production components manufactured by Microchip Technology with identical electrical and mechanical specifications. Selection between these parts should be based on packaging requirements and assembly process compatibility.

The MCP42100T-I/ST in tape & reel format is suitable for high-volume automated assembly operations. The MCP42100-I/ST in tube packaging is appropriate for lower-volume production, manual assembly, or applications where tape & reel format is unavailable.

Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for industrial and commercial applications. Moisture sensitivity level 1 (unlimited) indicates no special storage or handling precautions are required beyond standard component storage practices.

Frequently Asked Questions (FAQ)

Q: Can MCP42100-I/ST replace MCP42100T-I/ST in production?

A: Yes. Both parts are electrically and mechanically identical. The only difference is packaging format: tape & reel versus tube. Substitution is valid provided the assembly process can accommodate the tube packaging format.

Q: Are there any functional differences between these parts?

A: No. Both parts contain the same die, operate across identical voltage ranges (2.7V ~ 5.5V), support the same SPI interface, and provide 100k Ohm resistance with 256 taps across 2 circuits.

Q: What is the significance of the packaging difference?

A: Tape & reel (TR) packaging is optimized for automated pick-and-place assembly systems. Tube packaging is used for manual handling or lower-volume assembly. The electrical performance and reliability are equivalent.

Q: Do both parts require special storage conditions?

A: No. Both parts have Moisture Sensitivity Level 1 (unlimited), meaning they do not require special moisture control during storage or handling beyond standard component storage practices.

Q: Are both parts suitable for the operating temperature range of -40°C to 85°C?

A: Yes. Both MCP42100T-I/ST and MCP42100-I/ST are rated for -40°C to 85°C operation with identical temperature coefficients of 800ppm/°C.

Q: What is the cascade pin feature?

A: The cascade pin feature allows multiple MCP42100 devices to be connected in series, enabling extended resolution or multiple independent potentiometer circuits within a single system.