CAT5114VI50 Digital Potentiometer - Equivalent & Substitute Parts

Part Overview

The CAT5114VI50 is a digital potentiometer IC manufactured by onsemi, designed for data acquisition applications requiring programmable resistance control. This 50kΩ, 32-tap device features an Up/Down (U/D, INC, CS) interface with non-volatile memory, housed in an 8-SOIC surface mount package.

The CAT5114VI50 is classified as obsolete. Locating active equivalent parts is necessary to ensure long-term supply chain continuity and support for new designs or production restocking.

Substiute Parts

CAT5114VI50

onsemiIn Stock: 939CAT5114VI50 Datasheet

Current PartRFQ

N57M5114WD50TG

onsemiIn Stock: 858N57M5114WD50TG Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CAT5114VI50 is determined by strict equivalence across the following critical parameters:

• Resistance value: 50kΩ
• Number of taps: 32
• Number of circuits: 1
• Interface protocol: Up/Down (U/D, INC, CS)
• Memory type: Non-Volatile
• Supply voltage range: 2.5V ~ 6V
• Taper characteristic: Linear
• Package type: 8-SOIC
• Tolerance: ±20%
• Temperature coefficient: 300ppm/°C

The N57M5114WD50TG meets all these criteria and qualifies as a direct functional equivalent. Both parts share identical electrical specifications and mechanical compatibility, enabling direct substitution in existing designs.

Parameter Comparison

Engineering Selection Recommendations

The N57M5114WD50TG is the recommended substitute for the obsolete CAT5114VI50. Both parts are manufactured by onsemi and provide complete electrical and mechanical compatibility.

The N57M5114WD50TG offers the additional advantage of active product status, ensuring ongoing availability and manufacturing support. The part is ROHS3 compliant, meeting current environmental and regulatory requirements for new designs and production applications.

Both parts maintain identical functional specifications across all critical parameters: 50kΩ resistance, 32-tap configuration, Up/Down interface protocol, non-volatile memory, and 8-SOIC packaging. Direct substitution is supported without circuit redesign or layout modification.

Frequently Asked Questions (FAQ)

Q: Can the N57M5114WD50TG replace the CAT5114VI50 in existing designs?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters. Direct substitution is supported without modification to schematics, PCB layouts, or firmware.

Q: What is the primary reason to substitute the CAT5114VI50?

A: The CAT5114VI50 is classified as obsolete. The N57M5114WD50TG is an active product with ongoing manufacturing support and supply availability.

Q: Are there differences in operating temperature ranges?

A: Both parts operate across -40°C to 85°C. The N57M5114WD50TG specifies this as junction temperature (TJ), which is the standard thermal measurement for semiconductor devices.

Q: Do both parts support the same interface protocol?

A: Yes. Both the CAT5114VI50 and N57M5114WD50TG use the Up/Down (U/D, INC, CS) interface protocol, ensuring firmware and control logic compatibility.

Q: What is the package compatibility between these parts?

A: Both parts use the 8-SOIC (0.154", 3.90mm Width) surface mount package. PCB footprints and assembly processes are identical.

Q: Are there compliance differences between the two parts?

A: The N57M5114WD50TG is ROHS3 compliant. Both parts maintain REACH Unaffected status. For new designs, the N57M5114WD50TG is the preferred choice to meet current regulatory requirements.