MCP4231-502E/ST Equivalent & Substitute Parts

Part Overview

The MCP4231-502E/ST is a digital potentiometer IC manufactured by Microchip Technology, classified as a Data Acquisition component. This device features a 5kΩ resistance network with 129 taps, dual-circuit configuration, and SPI interface control. The part is currently in active production status with 1056 units available in tube packaging. Finding equivalent substitute parts is necessary to ensure supply chain flexibility, optimize procurement costs, and maintain design continuity when the primary packaging format is unavailable.

Substiute Parts

MCP4231-502E/ST

Microchip TechnologyIn Stock: 1107MCP4231-502E/ST Datasheet

Current PartRFQ

MCP4231T-502E/ST

Microchip TechnologyIn Stock: 3625MCP4231T-502E/ST Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MCP4231-502E/ST is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must maintain identical specifications for resistance value, circuit count, tap resolution, interface protocol, voltage supply range, operating temperature range, package type, and compliance certifications.

The MCP4231T-502E/ST qualifies as a direct substitute based on the following matching parameters:

• Resistance: 5kΩ (identical)
• Number of Circuits: 2 (identical)
• Number of Taps: 129 (identical)
• Interface: SPI (identical)
• Taper: Linear (identical)
• Voltage Supply: 1.8V ~ 5.5V (identical)
• Operating Temperature: -40°C ~ 125°C (identical)
• Package / Case: 14-TSSOP (identical)
• Mounting Type: Surface Mount (identical)
• Tolerance: ±20% (identical)
• Temperature Coefficient: 150ppm/°C (identical)
• Wiper Resistance: 75Ω (identical)
• Memory Type: Volatile (identical)
• RoHS Status: ROHS3 Compliant (identical)
• MSL: 1 (Unlimited) (identical)
• REACH Status: REACH Unaffected (identical)

The only difference between these parts is the packaging format: the main part is supplied in Tube packaging, while the substitute is supplied in Tape & Reel (TR) format. Both are manufactured by Microchip Technology and share the same base product number MCP4231.

Parameter Comparison

Engineering Selection Recommendations

Both the MCP4231-502E/ST and MCP4231T-502E/ST are active production parts manufactured by Microchip Technology with identical electrical and mechanical specifications. Selection between these parts is determined by packaging and supply requirements rather than functional performance.

The MCP4231-502E/ST in tube packaging is suitable for applications requiring smaller order quantities or manual component handling. The MCP4231T-502E/ST in Tape & Reel format is optimized for high-volume automated assembly processes and offers greater inventory availability (3516 units versus 1056 units). Both parts maintain ROHS3 compliance, REACH unaffected status, and MSL Level 1 rating, ensuring compatibility with standard manufacturing and environmental requirements.

Frequently Asked Questions (FAQ)

Q: Can MCP4231T-502E/ST replace MCP4231-502E/ST in my design?

A: Yes. The MCP4231T-502E/ST is a direct functional equivalent. Both parts share identical electrical specifications, including 5kΩ resistance, 129 taps, SPI interface, voltage supply range (1.8V ~ 5.5V), and operating temperature range (-40°C ~ 125°C). The only difference is packaging format: tube versus Tape & Reel.

Q: What is the difference between tube and Tape & Reel packaging?

A: Tube packaging is used for lower-volume orders and manual handling. Tape & Reel packaging is designed for automated pick-and-place assembly equipment and is standard for high-volume production. Both formats contain the same component with identical performance characteristics.

Q: Are there any compatibility issues when switching between these part numbers?

A: No compatibility issues exist. Both parts use the 14-TSSOP package with identical pin configuration, footprint, and electrical interface. PCB layout and firmware remain unchanged.

Q: Do both parts meet the same compliance standards?

A: Yes. Both MCP4231-502E/ST and MCP4231T-502E/ST are ROHS3 compliant, REACH unaffected, and carry MSL Level 1 rating. Compliance certifications are identical.

Q: Which part should I select for my application?

A: Select based on your assembly process and order volume. For automated manufacturing, use MCP4231T-502E/ST (Tape & Reel). For manual assembly or smaller quantities, use MCP4231-502E/ST (Tube). Both deliver identical performance.