X9319US8 Digital Potentiometer 50kΩ Equivalent & Substitute Parts

Part Overview

The X9319US8 is a digital potentiometer manufactured by Renesas Electronics Corporation, featuring 50kΩ resistance with 100 taps and Up/Down (U/D, INC, CS) interface control. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The part operates on 5V supply with linear taper configuration and non-volatile memory, suitable for data acquisition applications requiring digitally controlled resistance adjustment.

Substiute Parts

X9319US8

Renesas Electronics CorporationIn Stock: 912X9319US8 Datasheet

Current PartRFQ

X9317US8Z

Renesas Electronics CorporationIn Stock: 2096X9317US8Z Datasheet

Parametric EquivalentRFQ

X9C503SZ

Renesas Electronics CorporationIn Stock: 2483X9C503SZ Datasheet

Parametric EquivalentRFQ

CAT5113VI-01-GT3

onsemiIn Stock: 5173CAT5113VI-01-GT3 Datasheet

SimilarRFQ

DS1804Z-050+

Analog Devices Inc./Maxim IntegratedIn Stock: 2023DS1804Z-050+ Datasheet

SimilarRFQ

DS1804Z-050+T&R

Analog Devices Inc./Maxim IntegratedIn Stock: 5353DS1804Z-050+T&R Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the X9319US8 are classified into two categories based on parametric alignment:

Parametric Equivalents share all critical electrical and mechanical parameters with the main part: 50kΩ resistance, 100 taps, Up/Down (U/D, INC, CS) interface, non-volatile memory, 5V supply, ±20% tolerance, ±300ppm/°C temperature coefficient, 8-SOIC package, and linear taper configuration. These parts differ only in product status (active vs. obsolete) and RoHS compliance.

Similar Parts maintain the same package, interface type, taper, number of taps, and mounting configuration but differ in one or more critical electrical parameters: resistance value, supply voltage range, temperature coefficient, or operating temperature range. These parts require design verification before implementation.

Parameter Comparison

Engineering Selection Recommendations

Direct Parametric Equivalents (X9317US8Z, X9C503SZ): These Renesas parts are recommended as primary replacements for the obsolete X9319US8. Both maintain identical electrical specifications and package configuration. X9317US8Z and X9C503SZ are active products with ROHS3 compliance, providing supply chain continuity and regulatory alignment for new designs.

Alternative Equivalents with Extended Operating Range (DS1804Z-050+, DS1804Z-050+T&R): These Analog Devices/Maxim Integrated parts provide 50kΩ resistance with 100 taps and identical interface configuration. They support extended operating temperature range (-40°C ~ 85°C) and wider supply voltage range (2.7V ~ 5.5V), offering design flexibility for applications requiring broader environmental specifications. Temperature coefficient is higher at 750ppm/°C compared to the original 300ppm/°C specification.

Resistance Value Variant (CAT5113VI-01-GT3): This onsemi part differs in resistance value (1kΩ vs. 50kΩ) and is suitable only for applications where 1kΩ potentiometer functionality is acceptable. This part is obsolete and not recommended for new designs.

Frequently Asked Questions (FAQ)

Q: Can X9317US8Z and X9C503SZ be used interchangeably with X9319US8?

A: Yes. Both parts are parametric equivalents with identical resistance (50kΩ), tap count (100), interface type (U/D, INC, CS), supply voltage (5V), tolerance (±20%), temperature coefficient (±300ppm/°C), and 8-SOIC package. The primary differences are product status (active vs. obsolete) and RoHS compliance (ROHS3 vs. non-compliant).

Q: What are the key differences between Renesas and Analog Devices/Maxim substitutes?

A: Renesas parts (X9317US8Z, X9C503SZ) maintain the exact operating temperature range (0°C ~ 70°C) and temperature coefficient (±300ppm/°C) of the original X9319US8. Analog Devices/Maxim parts (DS1804Z-050+, DS1804Z-050+T&R) extend the operating temperature to -40°C ~ 85°C and supply voltage to 2.7V ~ 5.5V, but increase temperature coefficient to 750ppm/°C. Selection depends on application temperature and voltage requirements.

Q: Is the CAT5113VI-01-GT3 a suitable replacement?

A: No. The CAT5113VI-01-GT3 has 1kΩ resistance instead of 50kΩ, making it incompatible with circuits designed for the X9319US8. This part is listed as a similar device only and requires complete circuit redesign for implementation.

Q: What packaging options are available?

A: All substitute parts use the 8-SOIC (0.154", 3.90mm Width) surface mount package, matching the original X9319US8 footprint. Packaging variants (Tube, Cut Tape) do not affect electrical compatibility or PCB assembly.

Q: Are all substitute parts RoHS compliant?

A: The original X9319US8 is RoHS non-compliant. All recommended substitutes (X9317US8Z, X9C503SZ, DS1804Z-050+, DS1804Z-050+T&R) are ROHS3 compliant, supporting regulatory requirements for new product designs.