CAT5114ZI-50-G Equivalent & Substitute Parts

Part Overview

The CAT5114ZI-50-G is a digital potentiometer IC manufactured by onsemi, designed for data acquisition applications. This 50kΩ device features 32 taps with Up/Down (U/D, INC, CS) interface control and non-volatile memory, housed in an 8-MSOP surface mount package. The part is currently listed as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

CAT5114ZI-50-G

onsemiIn Stock: 860CAT5114ZI-50-G Datasheet

Current PartRFQ

N57M5114ZD50TG

onsemiIn Stock: 905N57M5114ZD50TG Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CAT5114ZI-50-G is determined by strict equivalence across the following critical parameters:

• Resistance Value: 50kΩ (exact match required)
• Number of Taps: 32 (exact match required)
• Interface Protocol: Up/Down (U/D, INC, CS) control (exact match required)
• Memory Type: Non-Volatile (exact match required)
• Supply Voltage Range: 2.5V ~ 6V (exact match required)
• Package Type: 8-MSOP surface mount (exact match required)
• Taper Characteristic: Linear (exact match required)

The substitute part N57M5114ZD50TG meets all critical electrical and mechanical parameters required for direct substitution. Both parts share identical functional specifications for resistance, tap count, interface control, memory retention, supply voltage, and package form factor.

Parameter Comparison

Engineering Selection Recommendations

The N57M5114ZD50TG is a direct functional equivalent to the CAT5114ZI-50-G. Selection of the substitute part is supported by the following factors:

• Product Status: The substitute part maintains Active status, ensuring continued availability and manufacturer support, whereas the original part is Obsolete.
• Regulatory Compliance: The N57M5114ZD50TG carries ROHS3 compliance certification, meeting current environmental and regulatory requirements.
• Electrical Equivalence: All critical electrical parameters—resistance value, tap count, interface protocol, supply voltage, and temperature coefficient—are identical between the two parts.
• Mechanical Compatibility: Both parts use identical 8-MSOP surface mount packaging with matching footprint dimensions (0.118", 3.00mm Width), ensuring direct PCB compatibility without layout modifications.
• Functional Compatibility: Non-volatile memory retention, linear taper characteristic, and Up/Down control interface are preserved in the substitute part.

Frequently Asked Questions (FAQ)

Q: Can the N57M5114ZD50TG be used as a direct replacement for the CAT5114ZI-50-G?

A: Yes. Both parts are manufactured by onsemi and share identical electrical specifications for resistance (50kΩ), tap count (32), interface control (Up/Down U/D, INC, CS), memory type (non-volatile), supply voltage range (2.5V ~ 6V), and package form factor (8-MSOP). No circuit modifications or PCB redesign is required.

Q: Are there any differences in operating temperature ranges?

A: Both parts operate across the -40°C ~ 85°C temperature range. The substitute part specifies this as junction temperature (TJ), which is the standard thermal specification for semiconductor devices.

Q: What is the significance of the substitute part's Active product status?

A: Active status indicates the N57M5114ZD50TG is currently manufactured and supported by onsemi, with ongoing availability for procurement. The original CAT5114ZI-50-G is Obsolete, meaning production has ended and future availability cannot be guaranteed.

Q: Does the substitute part meet current regulatory requirements?

A: Yes. The N57M5114ZD50TG carries ROHS3 compliance certification. Both parts maintain REACH Unaffected status, indicating compliance with chemical substance regulations.

Q: Are the package dimensions identical?

A: Yes. Both parts use 8-MSOP surface mount packaging with identical dimensions of 0.118" width and 3.00mm body width. PCB footprints are directly compatible.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is determined by matching: resistance value (50kΩ), number of taps (32), interface type (Up/Down U/D, INC, CS), memory type (non-volatile), supply voltage range (2.5V ~ 6V), taper characteristic (linear), and package type (8-MSOP). The N57M5114ZD50TG meets all these criteria.