MCP4442T-103E/ST Equivalent & Substitute Parts

Part Overview

The MCP4442T-103E/ST is a digital potentiometer from Microchip Technology's WiperLock™ series, classified as a Data Acquisition component. This 10kΩ, 4-circuit device features 129 taps with I2C interface control and non-volatile memory, designed for precision analog signal adjustment in embedded systems. The part is currently in active production status with full RoHS3 compliance and REACH unaffected certification. Substitute parts are identified when packaging or distribution channel variations occur while maintaining identical electrical and mechanical specifications.

Substiute Parts

MCP4442T-103E/ST

Microchip TechnologyIn Stock: 994MCP4442T-103E/ST Datasheet

Current PartRFQ

MCP4442-103E/ST

Microchip TechnologyIn Stock: 1493MCP4442-103E/ST Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution between MCP4442T-103E/ST and MCP4442-103E/ST is valid based on identical electrical and mechanical parameters. Both parts share the same base product number (MCP4442), resistance value (10kΩ), circuit configuration (4 circuits, 129 taps), interface protocol (I2C), supply voltage range (1.8V ~ 5.5V), operating temperature range (-40°C ~ 125°C), package type (14-TSSOP), and all performance specifications including tolerance (±20%), temperature coefficient (150ppm/°C), and wiper resistance (75Ω typical).

The only variation between these parts is packaging format: MCP4442T-103E/ST is supplied in Tape & Reel (TR) format, while MCP4442-103E/ST is supplied in Tube format. Both maintain identical RoHS3 compliance, REACH unaffected status, and MSL rating of 1 (Unlimited). This substitution is applicable in applications where packaging format does not impose constraints on assembly or logistics requirements.

Parameter Comparison

Engineering Selection Recommendations

Both MCP4442T-103E/ST and MCP4442-103E/ST are active production parts from Microchip Technology with full regulatory compliance. Selection between these parts should be based solely on packaging and supply chain requirements. The Tape & Reel format (MCP4442T-103E/ST) is optimized for high-volume automated assembly operations, while the Tube format (MCP4442-103E/ST) is suitable for lower-volume applications or manual assembly processes. Both parts carry identical electrical performance specifications, RoHS3 compliance certification, and REACH unaffected status, ensuring equivalent functionality in all circuit applications. Inventory availability may influence selection, as MCP4442-103E/ST currently shows higher stock levels (1452 pcs) compared to MCP4442T-103E/ST (936 pcs).

Frequently Asked Questions (FAQ)

Q: Are MCP4442T-103E/ST and MCP4442-103E/ST electrically identical?

A: Yes. Both parts are manufactured by Microchip Technology with identical electrical specifications, including 10kΩ resistance, 4-circuit configuration, 129 taps, I2C interface, 1.8V ~ 5.5V supply voltage range, -40°C ~ 125°C operating temperature, ±20% tolerance, and 150ppm/°C temperature coefficient.

Q: What is the difference between these two part numbers?

A: The only difference is packaging format. MCP4442T-103E/ST is supplied in Tape & Reel format, while MCP4442-103E/ST is supplied in Tube format. Both use the same 14-TSSOP package for surface mount assembly.

Q: Can I substitute MCP4442-103E/ST for MCP4442T-103E/ST in my design?

A: Yes, substitution is valid from an electrical and mechanical standpoint. The decision should be based on your assembly process requirements and packaging preferences. Tape & Reel format is standard for automated pick-and-place assembly, while Tube format is common for manual or lower-volume assembly.

Q: Do both parts have the same compliance certifications?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and carry MSL rating of 1 (Unlimited). They are both active production parts from Microchip Technology.

Q: Which part should I choose if inventory is a concern?

A: MCP4442-103E/ST currently has higher inventory availability (1452 pcs) compared to MCP4442T-103E/ST (936 pcs). If supply is critical, the Tube format part may offer better availability.

Q: Are there any performance differences between Tape & Reel and Tube packaging?

A: No. The packaging format does not affect electrical performance, reliability, or functional characteristics. The die and internal circuitry are identical.