X9318WS8 Digital Potentiometer 10k Ohm Equivalent & Substitute Parts

Part Overview

The X9318WS8 is a digital potentiometer manufactured by Renesas Electronics Corporation, featuring 10k Ohm resistance with 100 taps and Up/Down (U/D, INC, CS) interface in 8-SOIC surface mount packaging. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The device operates at 5V supply voltage with non-volatile memory and linear taper configuration, suitable for applications requiring digitally controlled resistance adjustment.

Substiute Parts

X9318WS8

Renesas Electronics CorporationIn Stock: 737X9318WS8 Datasheet

Current PartRFQ

X9318WS8Z

Renesas Electronics CorporationIn Stock: 1168X9318WS8Z Datasheet

DirectRFQ

X9317WS8Z

Renesas Electronics CorporationIn Stock: 2212X9317WS8Z Datasheet

Parametric EquivalentRFQ

X9C103SZ

Renesas Electronics CorporationIn Stock: 1995X9C103SZ Datasheet

Parametric EquivalentRFQ

CAT5113VI-01-GT3

onsemiIn Stock: 5173CAT5113VI-01-GT3 Datasheet

SimilarRFQ

DS1804Z-010+

Analog Devices Inc./Maxim IntegratedIn Stock: 5256DS1804Z-010+ Datasheet

SimilarRFQ

DS1804Z-010+T&R

Analog Devices Inc./Maxim IntegratedIn Stock: 4010DS1804Z-010+T&R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the X9318WS8 are categorized based on electrical and mechanical parameter alignment:

Direct Manufacturer Equivalent (Packaging Variant): X9318WS8Z differs only in packaging format (Tube vs. unspecified) while maintaining identical electrical specifications and active product status.

Parametric Equivalents (Same Electrical Function, Minor Variations): X9317WS8Z and X9C103SZ share core electrical parameters—10k Ohm resistance, 100 taps, Up/Down interface, non-volatile memory, 5V supply, linear taper, 8-SOIC package, and ±20% tolerance. The X9317WS8Z exhibits a higher wiper resistance (200 Ohms typical vs. 40 Ohms), while X9C103SZ maintains identical wiper resistance (40 Ohms). Both are active products with ROHS3 compliance.

Similar Parts (Different Resistance Value or Supply Range): CAT5113VI-01-GT3 (onsemi) provides 1k Ohm resistance with 2.5V ~ 6V supply range and extended operating temperature (-40°C ~ 85°C), classified as obsolete. DS1804Z-010+ and DS1804Z-010+T&R (Analog Devices Inc./Maxim Integrated) maintain 10k Ohm resistance and 100 taps but operate at 2.7V ~ 5.5V supply range with extended temperature range (-40°C ~ 85°C) and higher temperature coefficient (750ppm/°C). These differ in supply voltage flexibility and thermal performance.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Highest Compatibility): X9318WS8Z is the primary substitute, offering identical electrical specifications and active product status with ROHS3 compliance. This part maintains the original 5V supply requirement and 0°C ~ 70°C operating range while providing improved regulatory compliance over the obsolete X9318WS8.

For Parametric Equivalence Within Renesas Series: X9C103SZ provides full electrical equivalence with identical wiper resistance (40 Ohms typical) and active product status. X9317WS8Z is functionally equivalent but exhibits higher wiper resistance (200 Ohms typical), suitable for applications where this parameter variation is acceptable. Both offer ROHS3 compliance and active support.

For Extended Operating Range: DS1804Z-010+ and DS1804Z-010+T&R (Analog Devices Inc./Maxim Integrated) support extended temperature operation (-40°C ~ 85°C) and flexible supply voltage (2.7V ~ 5.5V), accommodating designs requiring broader environmental specifications. These parts maintain 10k Ohm resistance and 100 taps with active product status and ROHS3 compliance. The higher temperature coefficient (750ppm/°C vs. ±300ppm/°C) must be evaluated for thermal stability requirements.

For Cost or Availability Optimization: CAT5113VI-01-GT3 (onsemi) offers 1k Ohm resistance with flexible supply range (2.5V ~ 6V) and extended temperature operation. This part is classified as obsolete and should be used only when resistance value difference is acceptable and availability is confirmed.

Frequently Asked Questions (FAQ)

Q: Can X9318WS8Z be used as a direct drop-in replacement for X9318WS8?

A: Yes. X9318WS8Z maintains identical electrical specifications including 10k Ohm resistance, 100 taps, Up/Down interface, 5V supply, non-volatile memory, and 8-SOIC package. The only difference is packaging format (Tube). X9318WS8Z is active with ROHS3 compliance, addressing the obsolete status of the original part.

Q: What is the difference between X9317WS8Z and X9C103SZ?

A: Both are parametric equivalents with identical core specifications. X9317WS8Z exhibits wiper resistance of 200 Ohms typical, while X9C103SZ maintains 40 Ohms typical (matching the original X9318WS8). Selection depends on wiper resistance requirements for your application.

Q: Can DS1804Z-010+ replace X9318WS8 in all applications?

A: DS1804Z-010+ maintains 10k Ohm resistance, 100 taps, and Up/Down interface in 8-SOIC package. However, it operates at 2.7V ~ 5.5V supply (vs. 5V fixed) and exhibits higher temperature coefficient (750ppm/°C vs. ±300ppm/°C). It is suitable for applications where extended temperature range (-40°C ~ 85°C) and flexible supply voltage are beneficial or required. Thermal stability performance must be evaluated for precision applications.

Q: Why is CAT5113VI-01-GT3 listed as a similar part rather than a direct substitute?

A: CAT5113VI-01-GT3 features 1k Ohm resistance instead of 10k Ohm, making it unsuitable for direct replacement in circuits designed for 10k Ohm potentiometers. It is listed as a similar alternative only for applications where 1k Ohm resistance is acceptable and extended temperature operation (-40°C ~ 85°C) is required.

Q: What packaging options are available for substitute parts?

A: X9318WS8Z is supplied in Tube packaging. X9317WS8Z and X9C103SZ are supplied in Tube packaging. DS1804Z-010+ is supplied in Tube packaging, while DS1804Z-010+T&R is supplied in Cut Tape (CT) & Digi-Reel® format. CAT5113VI-01-GT3 is supplied in Cut Tape (CT) format. Packaging selection depends on assembly process requirements and order quantities.

Q: Are all substitute parts RoHS compliant?

A: X9318WS8Z, X9317WS8Z, X9C103SZ, CAT5113VI-01-GT3, DS1804Z-010+, and DS1804Z-010+T&R are all ROHS3 compliant. The original X9318WS8 is RoHS non-compliant, making compliant substitutes necessary for designs subject to RoHS regulations.