MCP4261T-103E/ST Equivalent & Substitute Parts

Part Overview

The MCP4261T-103E/ST is a digital potentiometer manufactured by Microchip Technology, classified as a Data Acquisition component. This device features a 10kΩ resistance value with 257 taps, dual-circuit configuration, and SPI interface control. The part is currently in active product status with full RoHS3 compliance and unlimited moisture sensitivity rating. Alternative part sourcing becomes necessary due to packaging availability, inventory allocation, or supply chain optimization requirements.

Substiute Parts

MCP4261T-103E/ST

Microchip TechnologyIn Stock: 1216MCP4261T-103E/ST Datasheet

Current PartRFQ

MCP4261-103E/ST

Microchip TechnologyIn Stock: 2280MCP4261-103E/ST Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MCP4261T-103E/ST is determined by strict equivalence across the following critical parameters:

• Resistance value: 10kΩ (exact match required)
• Number of circuits: 2 (exact match required)
• Number of taps: 257 (exact match required)
• Interface protocol: SPI (exact match required)
• Memory type: Non-Volatile (exact match required)
• Supply voltage range: 1.8V ~ 5.5V (exact match required)
• Package type: 14-TSSOP (exact match required)
• Operating temperature range: -40°C ~ 125°C (exact match required)

The primary distinction between the main part and substitute relates to packaging format: Tape & Reel (TR) versus Tube. Both variants maintain identical electrical specifications, mechanical dimensions, and functional performance characteristics. Packaging differences do not affect circuit-level compatibility or performance parameters.

Parameter Comparison

Engineering Selection Recommendations

Both MCP4261T-103E/ST and MCP4261-103E/ST are active products from Microchip Technology with identical electrical and mechanical specifications. Selection between these variants should be based on packaging requirements and inventory availability:

• MCP4261T-103E/ST (Tape & Reel): Suitable for high-volume automated assembly operations requiring continuous reel feeding.
• MCP4261-103E/ST (Tube): Suitable for lower-volume applications, manual assembly processes, or when reel packaging is not required.

Both variants maintain full compliance with RoHS3 and REACH regulations. Moisture sensitivity level MSL 1 (Unlimited) indicates no special storage or handling requirements. The WiperLock™ series designation confirms consistent feature set across both packaging options.

Frequently Asked Questions (FAQ)

Q: Can MCP4261-103E/ST (Tube) be used as a direct replacement for MCP4261T-103E/ST (Tape & Reel)?

A: Yes. Both parts are electrically and mechanically identical. The only difference is packaging format. Tube packaging does not affect circuit performance, pin configuration, or functional characteristics.

Q: Are there any compatibility issues when switching between Tape & Reel and Tube packaging?

A: No compatibility issues exist at the component level. Packaging format affects only the supply chain and assembly process, not the device itself. Pin assignments, electrical specifications, and mechanical dimensions remain identical.

Q: What is the significance of the WiperLock™ series designation?

A: WiperLock™ is a Microchip Technology series identifier indicating consistent feature implementation across both packaging variants. This designation confirms that both parts share the same internal architecture and performance characteristics.

Q: Do both parts require the same PCB footprint and solder profile?

A: Yes. Both MCP4261T-103E/ST and MCP4261-103E/ST use the 14-TSSOP package with identical pin spacing (0.173", 4.40mm width). PCB layout and reflow soldering parameters are interchangeable.

Q: What is the moisture sensitivity level (MSL) rating, and does it differ between packaging formats?

A: Both parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Storage and handling requirements are identical regardless of packaging format.

Q: Are regulatory certifications identical for both variants?

A: Yes. Both parts maintain ROHS3 compliance, REACH Unaffected status, and EAR99 export classification. Regulatory standing is independent of packaging format.